The Year in Heat & Cold
1921
+0.76°F
ran +0.76°F warmer than the 1996–2025 average across 263 cities — the 147th coldest of 157 years on record.
Extremes
Coldest Day of 1921
-56.0°F
Fairbanks, AK · Jan 3
Hottest Day of 1921
120.0°F
Needles, CA · Jul 19
Records Set in 1921
Daily Cold Records Set
412
calendar-day record lows set in 1921 that still stand today
Daily Heat Records Set
968
calendar-day record highs set in 1921 that still stand today
Where the Year Ran Warm & Cold
Each city's 1921 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 1921 — 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.
+2.81J
+1.77F
+4.38M
+0.29A
-1.01M
+0.55J
+0.24J
-1.55A
+1.17S
+0.00O
-0.29N
+0.44D
Coolest Stations & States
Coolest Stations of 1921
| 1 | Phoenix AZ | -5.24°F |
| 2 | Barrow AK | -4.21°F |
| 3 | Yuma AZ | -4.08°F |
| 4 | Tucson AZ | -3.88°F |
| 5 | San Juan PR | -3.74°F |
| 6 | Needles CA | -3.56°F |
| 7 | Talkeetna AK | -3.56°F |
| 8 | Riverside CA | -3.48°F |
| 9 | San Jose CA | -3.30°F |
| 10 | San Diego CA | -3.23°F |
Warmest Stations of 1921
| 1 | Quincy IL | +5.57°F |
| 2 | Cedar Rapids IA | +5.25°F |
| 3 | Dubuque IA | +4.13°F |
| 4 | Jonesboro AR | +4.02°F |
| 5 | Tyler TX | +3.75°F |
| 6 | Burlington IA | +3.66°F |
| 7 | Carbondale IL | +3.63°F |
| 8 | Charleston WV | +3.59°F |
| 9 | Sioux Falls SD | +3.55°F |
| 10 | Evansville IN | +3.49°F |
By State
Warmest states of 1921
Iowa+3.53°Illinois+3.48°Indiana+2.85°South Dakota+2.70°Arkansas+2.48°Louisiana+2.42°
Coolest states of 1921
Puerto Rico-3.74°Arizona-2.35°Alaska-2.25°California-2.10°District of Columbia-1.31°Vermont-1.18°
Coldest Since · Browse all states · See where it's hottest → hottestsince.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