The Year in Heat & Cold
1991
-0.02°F
ran -0.02°F cooler than the 1996–2025 average across 368 cities — the 136th coldest of 157 years on record.
Coldest Day of 1991
-60.0°F
Mcgrath, AK · Jan 15
Hottest Day of 1991
119.0°F
Palm Springs, CA · Jul 28
Daily Cold Records Set
986
calendar-day record lows set in 1991 that still stand today
Daily Heat Records Set
1,293
calendar-day record highs set in 1991 that still stand today
Where the Year Ran Warm & Cold
Each city's 1991 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 1991 — 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 1991
North Dakota+1.24°West Virginia+1.22°Ohio+1.17°Kentucky+1.17°Pennsylvania+1.13°Maryland+1.10°
Coolest states of 1991
Utah-2.61°Nevada-1.91°Arizona-1.64°New Mexico-1.51°Colorado-1.48°Texas-1.24°