The Year in Heat & Cold
1940
-1.67°F
ran -1.67°F cooler than the 1996–2025 average across 309 cities — the 105th warmest of 157 years on record.
Extremes
Hottest Day of 1940
118.0°F
El Centro, CA · Jun 13
Coldest Day of 1940
-44.0°F
Barrow, AK · Feb 14
Records Set in 1940
Daily Heat Records Set
831
calendar-day record highs set in 1940 that still stand today
Daily Cold Records Set
1,561
calendar-day record lows set in 1940 that still stand today
Where the Year Ran Warm & Cold
Each city's 1940 average temperature versus its 1996–2025 normal — blue where the year ran cool, red where it ran hot.
Hottest & Coldest at Every City
Each city's single hottest and coldest reading of 1940 — the number is the temperature, coloured hot-to-cold. Toggle between the two.
Month by Month
National temperature anomaly by month — red above the line is a warm month, blue below is cool.
-8.01J
-1.31F
-2.69M
-2.05A
-1.18M
-0.65J
-0.92J
-1.47A
-1.58S
+0.81O
-2.82N
+1.93D
Warmest Stations & States
Warmest Stations of 1940
| 1 | Crescent City CA | +4.11°F |
| 2 | Burns OR | +3.49°F |
| 3 | Klamath Falls OR | +3.40°F |
| 4 | Pullman WA | +2.76°F |
| 5 | Spokane WA | +2.76°F |
| 6 | Baker City OR | +2.73°F |
| 7 | Missoula MT | +2.71°F |
| 8 | Pocatello ID | +2.55°F |
| 9 | Challis ID | +2.51°F |
| 10 | Astoria OR | +2.46°F |
Coolest Stations of 1940
| 1 | Newark NJ | -5.65°F |
| 2 | New York-LGA NY | -5.32°F |
| 3 | Hagerstown MD | -5.28°F |
| 4 | Mount Pocono PA | -5.20°F |
| 5 | Burlington VT | -5.09°F |
| 6 | Miami FL | -4.93°F |
| 7 | Bangor ME | -4.90°F |
| 8 | Dallas TX | -4.82°F |
| 9 | Philadelphia PA | -4.80°F |
| 10 | Beckley WV | -4.74°F |
By State
Warmest states of 1940
Washington+1.99°Idaho+1.78°Oregon+1.64°Alaska+0.65°Montana+0.65°Wyoming+0.29°
Coolest states of 1940
Vermont-5.09°District of Columbia-4.55°New Jersey-4.43°Delaware-4.20°Connecticut-4.12°New York-3.96°
Hottest Since · Browse all states · See where it's coldest → coldestsince.com
part of Weather Trader · supported by Substack Subscribers · data: NWS NDFD forecast + NOAA/ACIS ThreadEx records · updated 2026-07-12 22:52Z
© 2026 Weather Trader · All rights reserved
part of Weather Trader · supported by Substack Subscribers · data: NWS NDFD forecast + NOAA/ACIS ThreadEx records · updated 2026-07-12 22:52Z
© 2026 Weather Trader · All rights reserved