The Year in Heat & Cold
1879
-1.42°F
ran -1.42°F cooler than the 1996–2025 average across 63 cities — the 68th coldest of 157 years on record.
Extremes
Coldest Day of 1879
-39.0°F
Minneapolis-St Paul, MN · Dec 25
Hottest Day of 1879
116.0°F
Yuma, AZ · Jul 31
Records Set in 1879
Daily Cold Records Set
277
calendar-day record lows set in 1879 that still stand today
Daily Heat Records Set
125
calendar-day record highs set in 1879 that still stand today
Where the Year Ran Warm & Cold
Each city's 1879 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 1879 — 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.
-3.41J
-3.70F
-0.07M
-1.99A
-0.04M
-2.13J
-0.44J
-2.57A
-4.41S
+3.34O
-1.33N
-1.04D
Coolest Stations & States
Coolest Stations of 1879
| 1 | Atlantic City Marina NJ | -5.00°F |
| 2 | Newark NJ | -4.22°F |
| 3 | Los Angeles Downtown CA | -4.16°F |
| 4 | Boston MA | -3.98°F |
| 5 | Bismarck ND | -3.88°F |
| 6 | Washington DC | -3.87°F |
| 7 | San Diego CA | -3.48°F |
| 8 | New York-Central Park NY | -3.44°F |
| 9 | Philadelphia PA | -3.20°F |
| 10 | Detroit MI | -3.19°F |
Warmest Stations of 1879
| 1 | Cincinnati OH | +1.36°F |
| 2 | Dubuque IA | +1.07°F |
| 3 | Jacksonville FL | +0.93°F |
| 4 | Augusta GA | +0.87°F |
| 5 | Madison WI | +0.54°F |
| 6 | Pittsburgh PA | +0.42°F |
| 7 | Savannah GA | +0.30°F |
| 8 | Denver CO | +0.27°F |
| 9 | Mobile AL | +0.23°F |
| 10 | Montgomery AL | +0.12°F |
By State
Warmest states of 1879
Colorado+0.27°Alabama+0.17°Maine+0.03°Florida-0.03°West Virginia-0.07°Wyoming-0.20°
Coolest states of 1879
New Jersey-4.61°Massachusetts-3.98°North Dakota-3.88°District of Columbia-3.87°Michigan-3.04°California-3.03°
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