June 2025 Globally,according to Copernicus,had a temperature anomaly of +0.47C vs. 91/20 and was the 3rd warmest after 2024 and 2023

The most above average country was Switzerland,the most below Uruguay

2025 is so far the 2nd hottest after 2024,but it'll probably slip below 2023

June 2025 in USA (Lower 48 States) had an average temperature of 71.22F which is +1.74F above normal and was the 7th warmest June on record.

In Alaska the average temperature was 50.8F, which is -0.1F below normal.

Puerto Rico:Average 83.0F anomaly -0.1F.

Graph by NOAA

JUNE 2025 WORLD EXTREME TEMPERATURES (Celsius)

Northern Hemisphere Highest:52.7C Khvormuj (Iran) 16 June
NH Lowest:-26.6C Summit (Greenland) 10 June

SH Highest:38.4C Oeiras (Brazil) 23 June
SH Lowest:-75.7C Dome Fuji (Antarctica) 15 June

ANOTHER HISTORIC HOT DAY
102F again at NYC Kennedy
also 103F Baiting Hollow yesterday ties
NEW YORK STATE HOTTEST JUNE DAY IN HISTORY

Hundreds of records again today include
102 Patuxent River,102 Luray Caverns
99 New Haven,97 Bridgeport

Several monthly records for June highest minimums as well

Hundreds had their highest heat indexes, specially in Canada,many of those for any month (worst than any July/August day)
June 2025 heat wave will be remembered for generations as one of the most extreme events in history

OVERNIGHT MINIMUMS
Up to 84F at Patuxent River.
Up to 81C even in Massachusetts!
Dozens of June records smashed,including Philadelphia PA Tmin 81F.
But those of Quebec 🇨🇦are more exceptional,being some all time records

Wait later for the update of TMAXES
This is HISTORIC folk!

‼️HISTORIC HEAT IN VERMONT
101f Ottauquechee

VERMONT JUNE RECORD tied
(=St Johnsbury in June 1919)

Insane 100F Plattsburg New York State
Monthly record broken by 3F and above July record !

Brutal heat wave

GREAT LAKES-EAST COAST HEAT WAVE

Extreme hot & humid conditions with some records:

99F/37.2 Lebanon New Hampshire ALL TIME RECORD TIED (for any month !)

CANADA June records in Quebec,including
36.4 L' Assomption,l' Acadie,Egbert,St Anicet,St Clothilde etc

Tomorrow much worse:Hazardous heat