#berkeleyearth — Public Fediverse posts

Nothing to see here, scroll on -.-

#BerkeleyEarth Special Report 8. May 2026

"March 2026 produced the largest monthly temperature anomaly in 170 years of Western U.S. instrumental records, with an average temperature +11.5°F above the mid-20th-century baseline"

https://berkeleyearth.org/special-report-the-march-2026-western-u-s-heatwave/

#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather #polycrisis

Nothing to see here, scroll on -.-

#BerkeleyEarth Special Report 8. May 2026

"March 2026 produced the largest monthly temperature anomaly in 170 years of Western U.S. instrumental records, with an average temperature +11.5°F above the mid-20th-century baseline"

https://berkeleyearth.org/special-report-the-march-2026-western-u-s-heatwave/

#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather #polycrisis

Nothing to see here, scroll on -.-

#BerkeleyEarth Special Report 8. May 2026

"March 2026 produced the largest monthly temperature anomaly in 170 years of Western U.S. instrumental records, with an average temperature +11.5°F above the mid-20th-century baseline"

https://berkeleyearth.org/special-report-the-march-2026-western-u-s-heatwave/

#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather #polycrisis

Nothing to see here, scroll on -.-

#BerkeleyEarth Special Report 8. May 2026

"March 2026 produced the largest monthly temperature anomaly in 170 years of Western U.S. instrumental records, with an average temperature +11.5°F above the mid-20th-century baseline"

https://berkeleyearth.org/special-report-the-march-2026-western-u-s-heatwave/

#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather #polycrisis

Nothing to see here, scroll on -.-

#BerkeleyEarth Special Report 8. May 2026

"March 2026 produced the largest monthly temperature anomaly in 170 years of Western U.S. instrumental records, with an average temperature +11.5°F above the mid-20th-century baseline"

https://berkeleyearth.org/special-report-the-march-2026-western-u-s-heatwave/

#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather #polycrisis

#Berkeley #BerkeleyEarth #GlobalTemperature #RobertRohde #ZekeHausfather

February 2026 nominally 2nd warmest February on record
Average
- global temperature 1.55 ± 0.12 °C (2.78 ± 0.22 °F)
- land temperatures 2.55 ± 0.30 °C (4.59 ± 0.55 °F)
- ocean temperatures 1.04 ± 0.17 °C (1.87 ± 0.30 °F)
above 1850-1900 average

https://berkeleyearth.org/february-2026-temperature-update/

#climate #ClimateScience #climatechange #ClimateCrisis #ClimateBreakdown #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather #polycrisis

#Berkeley #BerkeleyEarth #GlobalTemperature #RobertRohde #ZekeHausfather

February 2026 nominally 2nd warmest February on record
Average
- global temperature 1.55 ± 0.12 °C (2.78 ± 0.22 °F)
- land temperatures 2.55 ± 0.30 °C (4.59 ± 0.55 °F)
- ocean temperatures 1.04 ± 0.17 °C (1.87 ± 0.30 °F)
above 1850-1900 average

https://berkeleyearth.org/february-2026-temperature-update/

#climate #ClimateScience #climatechange #ClimateCrisis #ClimateBreakdown #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather #polycrisis

#Berkeley #BerkeleyEarth #GlobalTemperature #RobertRohde #ZekeHausfather

February 2026 nominally 2nd warmest February on record
Average
- global temperature 1.55 ± 0.12 °C (2.78 ± 0.22 °F)
- land temperatures 2.55 ± 0.30 °C (4.59 ± 0.55 °F)
- ocean temperatures 1.04 ± 0.17 °C (1.87 ± 0.30 °F)
above 1850-1900 average

https://berkeleyearth.org/february-2026-temperature-update/

#climate #ClimateScience #climatechange #ClimateCrisis #ClimateBreakdown #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather #polycrisis

#Berkeley #BerkeleyEarth #GlobalTemperature #RobertRohde #ZekeHausfather

February 2026 nominally 2nd warmest February on record
Average
- global temperature 1.55 ± 0.12 °C (2.78 ± 0.22 °F)
- land temperatures 2.55 ± 0.30 °C (4.59 ± 0.55 °F)
- ocean temperatures 1.04 ± 0.17 °C (1.87 ± 0.30 °F)
above 1850-1900 average

https://berkeleyearth.org/february-2026-temperature-update/

#climate #ClimateScience #climatechange #ClimateCrisis #ClimateBreakdown #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather #polycrisis

#Berkeley #BerkeleyEarth #GlobalTemperature #RobertRohde #ZekeHausfather

February 2026 nominally 2nd warmest February on record
Average
- global temperature 1.55 ± 0.12 °C (2.78 ± 0.22 °F)
- land temperatures 2.55 ± 0.30 °C (4.59 ± 0.55 °F)
- ocean temperatures 1.04 ± 0.17 °C (1.87 ± 0.30 °F)
above 1850-1900 average

https://berkeleyearth.org/february-2026-temperature-update/

#climate #ClimateScience #climatechange #ClimateCrisis #ClimateBreakdown #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather #polycrisis

Global Temperature Report for 2025 https://berkeleyearth.org/global-temperature-report-for-2025/
#ClimateChange #BerkeleyEarth

Global Temperature Report for 2025 https://berkeleyearth.org/global-temperature-report-for-2025/
#ClimateChange #BerkeleyEarth

Global Temperature Report for 2025 https://berkeleyearth.org/global-temperature-report-for-2025/
#ClimateChange #BerkeleyEarth

Global Temperature Report for 2025 https://berkeleyearth.org/global-temperature-report-for-2025/
#ClimateChange #BerkeleyEarth

Global Temperature Report for 2025 https://berkeleyearth.org/global-temperature-report-for-2025/
#ClimateChange #BerkeleyEarth

#Berkeley #BerkeleyEarth GlobalTemperature #Report

Folks, congratulations to our achievement! 👏👏👏 🏆 -.-

"We conclude that 2025 was the third warmest year on Earth since 1850. It is exceeded only by 2024 and 2023."

"The last 11 years have included all 11 of the warmest years observed in the instrumental record, with the last 3 years including all of the top 3 warmest."

https://berkeleyearth.org/global-temperature-report-for-2025/

#Berkeley #BerkeleyEarth GlobalTemperature #Report

Folks, congratulations to our achievement! 👏👏👏 🏆 -.-

"We conclude that 2025 was the third warmest year on Earth since 1850. It is exceeded only by 2024 and 2023."

"The last 11 years have included all 11 of the warmest years observed in the instrumental record, with the last 3 years including all of the top 3 warmest."

https://berkeleyearth.org/global-temperature-report-for-2025/

#Berkeley #BerkeleyEarth GlobalTemperature #Report

Folks, congratulations to our achievement! 👏👏👏 🏆 -.-

"We conclude that 2025 was the third warmest year on Earth since 1850. It is exceeded only by 2024 and 2023."

"The last 11 years have included all 11 of the warmest years observed in the instrumental record, with the last 3 years including all of the top 3 warmest."

https://berkeleyearth.org/global-temperature-report-for-2025/

#Berkeley #BerkeleyEarth GlobalTemperature #Report

Folks, congratulations to our achievement! 👏👏👏 🏆 -.-

"We conclude that 2025 was the third warmest year on Earth since 1850. It is exceeded only by 2024 and 2023."

"The last 11 years have included all 11 of the warmest years observed in the instrumental record, with the last 3 years including all of the top 3 warmest."

https://berkeleyearth.org/global-temperature-report-for-2025/

#Berkeley #BerkeleyEarth GlobalTemperature #Report

Folks, congratulations to our achievement! 👏👏👏 🏆 -.-

"We conclude that 2025 was the third warmest year on Earth since 1850. It is exceeded only by 2024 and 2023."

"The last 11 years have included all 11 of the warmest years observed in the instrumental record, with the last 3 years including all of the top 3 warmest."

https://berkeleyearth.org/global-temperature-report-for-2025/

#Berkeley #BerkeleyEarth #temperature update

"October 2025 was the third warmest October on record behind 2023 and 2024, with a global average of 1.52 ± 0.08 °C (2.73 ± 0.14 °F) above the 1850-1900 average."

"2025 now has a 94% likelihood to be the third warmest year on record and almost no chance (0.02%) to have an annual average above 1.5 °C."

https://berkeleyearth.org/october-2025-temperature-update/

#climate #ClimateScience #climatechange #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather #polycrisis

#Berkeley #BerkeleyEarth #temperature update

"October 2025 was the third warmest October on record behind 2023 and 2024, with a global average of 1.52 ± 0.08 °C (2.73 ± 0.14 °F) above the 1850-1900 average."

"2025 now has a 94% likelihood to be the third warmest year on record and almost no chance (0.02%) to have an annual average above 1.5 °C."

https://berkeleyearth.org/october-2025-temperature-update/

#climate #ClimateScience #climatechange #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather #polycrisis

#Berkeley #BerkeleyEarth #temperature update

"October 2025 was the third warmest October on record behind 2023 and 2024, with a global average of 1.52 ± 0.08 °C (2.73 ± 0.14 °F) above the 1850-1900 average."

"2025 now has a 94% likelihood to be the third warmest year on record and almost no chance (0.02%) to have an annual average above 1.5 °C."

https://berkeleyearth.org/october-2025-temperature-update/

#climate #ClimateScience #climatechange #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather #polycrisis

#Berkeley #BerkeleyEarth #temperature update

"October 2025 was the third warmest October on record behind 2023 and 2024, with a global average of 1.52 ± 0.08 °C (2.73 ± 0.14 °F) above the 1850-1900 average."

"2025 now has a 94% likelihood to be the third warmest year on record and almost no chance (0.02%) to have an annual average above 1.5 °C."

https://berkeleyearth.org/october-2025-temperature-update/

#climate #ClimateScience #climatechange #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather #polycrisis

#Berkeley #BerkeleyEarth #temperature update

"October 2025 was the third warmest October on record behind 2023 and 2024, with a global average of 1.52 ± 0.08 °C (2.73 ± 0.14 °F) above the 1850-1900 average."

"2025 now has a 94% likelihood to be the third warmest year on record and almost no chance (0.02%) to have an annual average above 1.5 °C."

https://berkeleyearth.org/october-2025-temperature-update/

#climate #ClimateScience #climatechange #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather #polycrisis

#FYI #BerkeleyEarth #TemperatureUpdate

"May 2025 was the second warmest May on record, with a monthly global average of 1.33 ± 0.11°C (2.39 ± 0.19 °F) above the 1850-1900 average. This is well below the record set in May 2024, but still above all previous years."

https://berkeleyearth.org/may-2025-temperature-update/

#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #climatecatastrophe #globalWarming #globalHeating #ExtremeWeather

#FYI #BerkeleyEarth #TemperatureUpdate

"May 2025 was the second warmest May on record, with a monthly global average of 1.33 ± 0.11°C (2.39 ± 0.19 °F) above the 1850-1900 average. This is well below the record set in May 2024, but still above all previous years."

https://berkeleyearth.org/may-2025-temperature-update/

#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #climatecatastrophe #globalWarming #globalHeating #ExtremeWeather

#FYI #BerkeleyEarth #TemperatureUpdate

"May 2025 was the second warmest May on record, with a monthly global average of 1.33 ± 0.11°C (2.39 ± 0.19 °F) above the 1850-1900 average. This is well below the record set in May 2024, but still above all previous years."

https://berkeleyearth.org/may-2025-temperature-update/

#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #climatecatastrophe #globalWarming #globalHeating #ExtremeWeather

#FYI #BerkeleyEarth #TemperatureUpdate

"May 2025 was the second warmest May on record, with a monthly global average of 1.33 ± 0.11°C (2.39 ± 0.19 °F) above the 1850-1900 average. This is well below the record set in May 2024, but still above all previous years."

https://berkeleyearth.org/may-2025-temperature-update/

#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #climatecatastrophe #globalWarming #globalHeating #ExtremeWeather

#FYI #BerkeleyEarth #TemperatureUpdate

"May 2025 was the second warmest May on record, with a monthly global average of 1.33 ± 0.11°C (2.39 ± 0.19 °F) above the 1850-1900 average. This is well below the record set in May 2024, but still above all previous years."

https://berkeleyearth.org/may-2025-temperature-update/

#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #climatecatastrophe #globalWarming #globalHeating #ExtremeWeather

#FYI #BerkeleyEarth #temperature Update March 2025

"...While we measure March 2025 to be 0.02 °C and 0.04 °C warmer than 2024 and 2016, respectively, Copernicus ranked March 2025 as the second warmest March and NOAA reported the third warmest March."

https://berkeleyearth.org/march-2025-temperature-update/

#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #climatecatastrophe #globalWarming #globalHeating #ExtremeWeather

#FYI #BerkeleyEarth #temperature Update March 2025

"...While we measure March 2025 to be 0.02 °C and 0.04 °C warmer than 2024 and 2016, respectively, Copernicus ranked March 2025 as the second warmest March and NOAA reported the third warmest March."

https://berkeleyearth.org/march-2025-temperature-update/

#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #climatecatastrophe #globalWarming #globalHeating #ExtremeWeather

#FYI #BerkeleyEarth #temperature Update March 2025

"...While we measure March 2025 to be 0.02 °C and 0.04 °C warmer than 2024 and 2016, respectively, Copernicus ranked March 2025 as the second warmest March and NOAA reported the third warmest March."

https://berkeleyearth.org/march-2025-temperature-update/

#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #climatecatastrophe #globalWarming #globalHeating #ExtremeWeather

#FYI #BerkeleyEarth #temperature Update March 2025

"...While we measure March 2025 to be 0.02 °C and 0.04 °C warmer than 2024 and 2016, respectively, Copernicus ranked March 2025 as the second warmest March and NOAA reported the third warmest March."

https://berkeleyearth.org/march-2025-temperature-update/

#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #climatecatastrophe #globalWarming #globalHeating #ExtremeWeather

#FYI #BerkeleyEarth #temperature Update March 2025

"...While we measure March 2025 to be 0.02 °C and 0.04 °C warmer than 2024 and 2016, respectively, Copernicus ranked March 2025 as the second warmest March and NOAA reported the third warmest March."

https://berkeleyearth.org/march-2025-temperature-update/

#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #climatecatastrophe #globalWarming #globalHeating #ExtremeWeather

Global #Temperature Report for #2024 - #BerkeleyEarth
Annual average for 2024 is estimated as 1.62 ± 0.06 ° above the average pre-industrial period. The warming spike observed in 2023 and 2024 has been extreme and represents a larger than expected deviation from the previous warming trend.
Recent warming trends and the lack of adequate mitigation measures make it clear that the 1.5 °C goal will not be met.
https://berkeleyearth.org/global-temperature-report-for-2024/
#climate #climatechange #climatecrisis

Global #Temperature Report for #2024 - #BerkeleyEarth
Annual average for 2024 is estimated as 1.62 ± 0.06 ° above the average pre-industrial period. The warming spike observed in 2023 and 2024 has been extreme and represents a larger than expected deviation from the previous warming trend.
Recent warming trends and the lack of adequate mitigation measures make it clear that the 1.5 °C goal will not be met.
https://berkeleyearth.org/global-temperature-report-for-2024/
#climate #climatechange #climatecrisis

Global #Temperature Report for #2024 - #BerkeleyEarth
Annual average for 2024 is estimated as 1.62 ± 0.06 ° above the average pre-industrial period. The warming spike observed in 2023 and 2024 has been extreme and represents a larger than expected deviation from the previous warming trend.
Recent warming trends and the lack of adequate mitigation measures make it clear that the 1.5 °C goal will not be met.
https://berkeleyearth.org/global-temperature-report-for-2024/
#climate #climatechange #climatecrisis

Global #Temperature Report for #2024 - #BerkeleyEarth
Annual average for 2024 is estimated as 1.62 ± 0.06 ° above the average pre-industrial period. The warming spike observed in 2023 and 2024 has been extreme and represents a larger than expected deviation from the previous warming trend.
Recent warming trends and the lack of adequate mitigation measures make it clear that the 1.5 °C goal will not be met.
https://berkeleyearth.org/global-temperature-report-for-2024/
#climate #climatechange #climatecrisis

Global #Temperature Report for #2024 - #BerkeleyEarth
Annual average for 2024 is estimated as 1.62 ± 0.06 ° above the average pre-industrial period. The warming spike observed in 2023 and 2024 has been extreme and represents a larger than expected deviation from the previous warming trend.
Recent warming trends and the lack of adequate mitigation measures make it clear that the 1.5 °C goal will not be met.
https://berkeleyearth.org/global-temperature-report-for-2024/
#climate #climatechange #climatecrisis

#FYI #Berkeley #BerkeleyEarth #climate data update 10. Jan 2025

Global Temperature Report for 2024

"The global annual average for 2024 in our dataset is estimated as 1.62 ± 0.06 °C (2.91 ± 0.11 °F) above the average during the period 1850 to 1900"

https://berkeleyearth.org/global-temperature-report-for-2024/

#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #climatecatastrophe #globalWarming #globalHeating #ExtremeWeather

#FYI #Berkeley #BerkeleyEarth #climate data update 10. Jan 2025

Global Temperature Report for 2024

"The global annual average for 2024 in our dataset is estimated as 1.62 ± 0.06 °C (2.91 ± 0.11 °F) above the average during the period 1850 to 1900"

https://berkeleyearth.org/global-temperature-report-for-2024/

#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #climatecatastrophe #globalWarming #globalHeating #ExtremeWeather

#FYI #Berkeley #BerkeleyEarth #climate data update 10. Jan 2025

Global Temperature Report for 2024

"The global annual average for 2024 in our dataset is estimated as 1.62 ± 0.06 °C (2.91 ± 0.11 °F) above the average during the period 1850 to 1900"

https://berkeleyearth.org/global-temperature-report-for-2024/

#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #climatecatastrophe #globalWarming #globalHeating #ExtremeWeather

#FYI #Berkeley #BerkeleyEarth #climate data update 10. Jan 2025

Global Temperature Report for 2024

"The global annual average for 2024 in our dataset is estimated as 1.62 ± 0.06 °C (2.91 ± 0.11 °F) above the average during the period 1850 to 1900"

https://berkeleyearth.org/global-temperature-report-for-2024/

#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #climatecatastrophe #globalWarming #globalHeating #ExtremeWeather

#FYI #Berkeley #BerkeleyEarth #climate data update 10. Jan 2025

Global Temperature Report for 2024

"The global annual average for 2024 in our dataset is estimated as 1.62 ± 0.06 °C (2.91 ± 0.11 °F) above the average during the period 1850 to 1900"

https://berkeleyearth.org/global-temperature-report-for-2024/

#climate #ClimateScience #climatechange #ClimateEmergency #ClimateCrisis #ClimateBreakdown #climatecatastrophe #globalWarming #globalHeating #ExtremeWeather

Grmpf.
I wanted to see the evolution of the temperature difference day-night (DIU) in some regions, eg the Tropics.
Berkely Earth has daily TMIN and TMAX in gridded cells for land-only, based on observations at weather stations and some other calculation magicc to fill in gaps between weather stations https://berkeleyearth.org/data/

Cool, aye?!
But I got suspicious once I had done the data preparation and eagerly looked at the lineplots. ^^

My sanity check was Germany for which DWD has #opendata :
https://opendata.dwd.de/climate_environment/CDC/observations_germany/climate/daily/kl/

Comparing the daily climatology provided by Berkely Earth for German grid cells, I found that only TMIN is trustworthy enough (defined as difference of ±1.5°C in the base average 1951-1980).

(Not trustworthy enough for daily perspectives like in my DIU project, but in monthly averaging it can probably show a trustworthy trend. – While its amplitude should be digested with caution .)

Berkeley's daily TMAX base average ("climatology") is on average 4°C hotter than the base average from DWD's actual station TXK reporting, range from -4 to +12°C.

TMIN can be very off the mark as well: range is from -3 to +33°C.
While the average difference is +2.95°C...

All this is based on their daily "climatology", the 30 year period 1951-1980 and only German grid cells, with only those DWD stations that are still online and were online for at least 20 years in the 30 year period.

cc @RARohde #BerkeleyEarth #DWD #citizenscience

Grmpf.
I wanted to see the evolution of the temperature difference day-night (DIU) in some regions, eg the Tropics.
Berkely Earth has daily TMIN and TMAX in gridded cells for land-only, based on observations at weather stations and some other calculation magicc to fill in gaps between weather stations https://berkeleyearth.org/data/

Cool, aye?!
But I got suspicious once I had done the data preparation and eagerly looked at the lineplots. ^^

My sanity check was Germany for which DWD has #opendata :
https://opendata.dwd.de/climate_environment/CDC/observations_germany/climate/daily/kl/

Comparing the daily climatology provided by Berkely Earth for German grid cells, I found that only TMIN is trustworthy enough (defined as difference of ±1.5°C in the base average 1951-1980).

(Not trustworthy enough for daily perspectives like in my DIU project, but in monthly averaging it can probably show a trustworthy trend. – While its amplitude should be digested with caution .)

Berkeley's daily TMAX base average ("climatology") is on average 4°C hotter than the base average from DWD's actual station TXK reporting, range from -4 to +12°C.

TMIN can be very off the mark as well: range is from -3 to +33°C.
While the average difference is +2.95°C...

All this is based on their daily "climatology", the 30 year period 1951-1980 and only German grid cells, with only those DWD stations that are still online and were online for at least 20 years in the 30 year period.

cc @RARohde #BerkeleyEarth #DWD #citizenscience

Grmpf.
I wanted to see the evolution of the temperature difference day-night (DIU) in some regions, eg the Tropics.
Berkely Earth has daily TMIN and TMAX in gridded cells for land-only, based on observations at weather stations and some other calculation magicc to fill in gaps between weather stations https://berkeleyearth.org/data/

Cool, aye?!
But I got suspicious once I had done the data preparation and eagerly looked at the lineplots. ^^

My sanity check was Germany for which DWD has #opendata :
https://opendata.dwd.de/climate_environment/CDC/observations_germany/climate/daily/kl/

Comparing the daily climatology provided by Berkely Earth for German grid cells, I found that only TMIN is trustworthy enough (defined as difference of ±1.5°C in the base average 1951-1980).

(Not trustworthy enough for daily perspectives like in my DIU project, but in monthly averaging it can probably show a trustworthy trend. – While its amplitude should be digested with caution .)

Berkeley's daily TMAX base average ("climatology") is on average 4°C hotter than the base average from DWD's actual station TXK reporting, range from -4 to +12°C.

TMIN can be very off the mark as well: range is from -3 to +33°C.
While the average difference is +2.95°C...

All this is based on their daily "climatology", the 30 year period 1951-1980 and only German grid cells, with only those DWD stations that are still online and were online for at least 20 years in the 30 year period.

cc @RARohde #BerkeleyEarth #DWD #citizenscience

Grmpf.
I wanted to see the evolution of the temperature difference day-night (DIU) in some regions, eg the Tropics.
Berkely Earth has daily TMIN and TMAX in gridded cells for land-only, based on observations at weather stations and some other calculation magicc to fill in gaps between weather stations https://berkeleyearth.org/data/

Cool, aye?!
But I got suspicious once I had done the data preparation and eagerly looked at the lineplots. ^^

My sanity check was Germany for which DWD has #opendata :
https://opendata.dwd.de/climate_environment/CDC/observations_germany/climate/daily/kl/

Comparing the daily climatology provided by Berkely Earth for German grid cells, I found that only TMIN is trustworthy enough (defined as difference of ±1.5°C in the base average 1951-1980).

(Not trustworthy enough for daily perspectives like in my DIU project, but in monthly averaging it can probably show a trustworthy trend. – While its amplitude should be digested with caution .)

Berkeley's daily TMAX base average ("climatology") is on average 4°C hotter than the base average from DWD's actual station TXK reporting, range from -4 to +12°C.

TMIN can be very off the mark as well: range is from -3 to +33°C.
While the average difference is +2.95°C...

All this is based on their daily "climatology", the 30 year period 1951-1980 and only German grid cells, with only those DWD stations that are still online and were online for at least 20 years in the 30 year period.

cc @RARohde #BerkeleyEarth #DWD #citizenscience

Grmpf.
I wanted to see the evolution of the temperature difference day-night (DIU) in some regions, eg the Tropics.
Berkely Earth has daily TMIN and TMAX in gridded cells for land-only, based on observations at weather stations and some other calculation magicc to fill in gaps between weather stations https://berkeleyearth.org/data/

Cool, aye?!
But I got suspicious once I had done the data preparation and eagerly looked at the lineplots. ^^

My sanity check was Germany for which DWD has #opendata :
https://opendata.dwd.de/climate_environment/CDC/observations_germany/climate/daily/kl/

Comparing the daily climatology provided by Berkely Earth for German grid cells, I found that only TMIN is trustworthy enough (defined as difference of ±1.5°C in the base average 1951-1980).

(Not trustworthy enough for daily perspectives like in my DIU project, but in monthly averaging it can probably show a trustworthy trend. – While its amplitude should be digested with caution .)

Berkeley's daily TMAX base average ("climatology") is on average 4°C hotter than the base average from DWD's actual station TXK reporting, range from -4 to +12°C.

TMIN can be very off the mark as well: range is from -3 to +33°C.
While the average difference is +2.95°C...

All this is based on their daily "climatology", the 30 year period 1951-1980 and only German grid cells, with only those DWD stations that are still online and were online for at least 20 years in the 30 year period.

cc @RARohde #BerkeleyEarth #DWD #citizenscience