The Year in Heat & Cold
1869
-4.31°F
ran -4.31°F cooler than the 1996–2025 average across 5 cities — the 1st coldest of 157 years on record.
Extremes
Coldest Day of 1869
-20.0°F
Concord, NH · Mar 6
Hottest Day of 1869
95.0°F
New York-Central Park, NY · Aug 21
Records Set in 1869
Daily Cold Records Set
39
calendar-day record lows set in 1869 that still stand today
Daily Heat Records Set
3
calendar-day record highs set in 1869 that still stand today
Where the Year Ran Warm & Cold
Each city's 1869 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 1869 — 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.
+1.51J
-1.36F
-9.13M
-3.62A
-3.75M
-4.39J
-4.00J
-3.82A
-2.56S
-8.30O
-7.50N
-4.04D
Coolest Stations & States
Coolest Stations of 1869
| 1 | Lansing MI | -6.33°F |
| 2 | Newark NJ | -5.59°F |
| 3 | New York-Central Park NY | -4.32°F |
| 4 | Madison WI | -4.26°F |
| 5 | Concord NH | -1.06°F |
Warmest Stations of 1869
| 1 | Concord NH | -1.06°F |
| 2 | Madison WI | -4.26°F |
| 3 | New York-Central Park NY | -4.32°F |
| 4 | Newark NJ | -5.59°F |
| 5 | Lansing MI | -6.33°F |
By State
Warmest states of 1869
New Hampshire-1.06°Wisconsin-4.26°New York-4.32°New Jersey-5.59°Michigan-6.33°
Coolest states of 1869
Michigan-6.33°New Jersey-5.59°New York-4.32°Wisconsin-4.26°New Hampshire-1.06°
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