The Year in Heat & Cold
1899
-1.93°F
ran -1.93°F cooler than the 1996–2025 average across 184 cities — the 37th coldest of 157 years on record.
Coldest Day of 1899
-50.0°F
Glasgow, MT · Feb 10
Hottest Day of 1899
113.0°F
Needles, CA · Jul 1
Daily Cold Records Set
1,014
calendar-day record lows set in 1899 that still stand today
Daily Heat Records Set
391
calendar-day record highs set in 1899 that still stand today
Where the Year Ran Warm & Cold
Each city's 1899 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 1899 — the number is the temperature, coloured hot-to-cold. Toggle between the two.
National temperature anomaly by month — red above the line is a warm month, blue below is cool.
Coolest Stations & States
Warmest states of 1899
Vermont+0.20°Ohio-0.39°Indiana-0.40°Iowa-0.53°New York-0.63°Alabama-0.66°
Coolest states of 1899
District of Columbia-4.78°North Dakota-4.56°New Jersey-4.53°Arizona-4.35°Montana-4.03°Wyoming-4.02°