Extreme Temperatures

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Climatologist & Weather Historian.
Weather news. Climatic statistics and records. By M. Herrera www.mherrera.org/temp.htm
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Extreme TemperaturesJan 14

2025 according to NASA was.the
WORLD SECOND HOTTEST YEAR
With an anomaly of +0.58C vs 1991/2020 or +1.19C vs 1951/1980 it beat 2023 by 0.02C and was behind 2024 by 0.09C

European Copernicus and Japanese JMA had 2023 slightly ahead of 2025 (3rd hottest than)

Extreme TemperaturesJan 13

Just in:
2025 IN MAINLAND USA

Average Temperature:54.64F
Anomaly:+1.37F
4th warmest behind:
2024
2012
2016

All the 9 warmest years since 1880 were recorded after 2011.
Graph by NOAA

Extreme TemperaturesDec 18

2025 WORLD EXTREME TEMPERATURES

Northern Hemisphere Highest:52.8C Shabankareh (Iran) 19 July
NH Lowest:-61.0C Summit (Greenland) 16 January

SH Highest:49.3C Geraldton Airport (Australia) 20 January
SH Lowest:-82.0C Dome Fuji (Antarctica) 24 July

Extreme TemperaturesDec 10

November 2025 Globally,according to NASA, had a temperature anomaly of +0.61C vs 1991/2020 norm and was the 3rd warmest November on record behind 2023 and 2024.

2025 is still slightly ahead of 2023 but it's expected to end tied with 2023 as the 2nd hottest year behind 2024.

Extreme TemperaturesDec 10

November 2025 in USA was the 4th warmest on record.
it was record hot in some western areas and Texas.

Meteorological Fall (Sep-Nov) ranked the 3rd hottest on record.

Map by NOAA

Extreme TemperaturesDec 1

NOVEMBER 2025 WORLD EXTREME TEMPERATURES

Northern Hemisphere Highest:43.0C Vinoramas (Mexico) 3 November
NH Lowest:-50.9C East Grip (Greenland) 28 November

SH Highest:46.8C Bedourie (Australia) 23 November
SH Lowest:-55.0C Vostok (Antarctica) 9 November

Extreme TemperaturesNov 15
October 2025 Globally,according to NASA, had a temperature anomaly of +0.66C vs 1991/2020 or +1.22C vs 1951/2020 and was firmly the 3rd hottest October on record.
2025 so far is 2nd behind 2024 but it might be reached by 2023 in few weeks.
All this without a day of Nino
Extreme TemperaturesNov 7
October 2025 Globally,according to Copernicus,
had an average temperature of 15.14C which is +0.70C above the 1991/2020 normal and was the 3rd warmest on record behind 2023 and 2024.
The most above average country was Canada,the most below Bosnia
Extreme TemperaturesNov 3
Historic November warmth in Colorado
83F or 28.3C at Denver Int. AP smashed its November monthly record by 2F.
Extreme TemperaturesOct 31

OCTOBER 2025 WORLDWIDE EXTREME TEMPERATURES

Northern Hemisphere Highest:46.7C Shabankareh (Iran) 1 October
NH Lowest:-50.0C Summit (Greenland) 29 October

Southern Hemisphere Highest:46.1C Birdsville (Australia) 21 October
SH Lowest:-67.6C Dome Fuji (Antarctica) 12 October