The Year in Heat & Cold
1877
-1.12°F
ran -1.12°F cooler than the 1996–2025 average across 52 cities — the 61st warmest of 157 years on record.
Extremes
Hottest Day of 1877
107.0°F
North Platte, NE · Jul 5
Coldest Day of 1877
-30.0°F
Bismarck, ND · Jan 16
Records Set in 1877
Daily Heat Records Set
106
calendar-day record highs set in 1877 that still stand today
Daily Cold Records Set
97
calendar-day record lows set in 1877 that still stand today
Where the Year Ran Warm & Cold
Each city's 1877 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 1877 — 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.
-4.09J
+3.51F
-5.66M
-2.35A
-2.46M
-1.98J
-0.88J
-0.68A
-1.05S
-0.81O
-1.97N
+5.16D
Warmest Stations & States
Warmest Stations of 1877
| 1 | Dubuque IA | +2.15°F |
| 2 | Duluth MN | +2.12°F |
| 3 | Concord NH | +1.77°F |
| 4 | Pittsburgh PA | +1.52°F |
| 5 | Cincinnati OH | +1.46°F |
| 6 | Portland ME | +1.41°F |
| 7 | Jacksonville FL | +0.21°F |
| 8 | Madison WI | +0.17°F |
| 9 | La Crosse WI | +0.02°F |
| 10 | Augusta GA | -0.01°F |
Coolest Stations of 1877
| 1 | Milwaukee WI | -3.51°F |
| 2 | Washington DC | -3.46°F |
| 3 | Atlantic City Marina NJ | -3.45°F |
| 4 | New York-Central Park NY | -3.10°F |
| 5 | Newark NJ | -2.93°F |
| 6 | Memphis TN | -2.74°F |
| 7 | Philadelphia PA | -2.62°F |
| 8 | Galveston TX | -2.54°F |
| 9 | Salt Lake City UT | -2.46°F |
| 10 | Cheyenne WY | -2.38°F |
By State
Warmest states of 1877
Iowa+2.15°New Hampshire+1.77°Maine+1.41°Minnesota+0.72°Ohio-0.11°Georgia-0.38°
Coolest states of 1877
District of Columbia-3.46°New Jersey-3.19°Texas-2.54°Utah-2.46°Wyoming-2.38°Massachusetts-2.36°
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