The Year in Heat & Cold
1991
-0.02°F
ran -0.02°F cooler than the 1996–2025 average across 368 cities — the 22nd warmest of 157 years on record.
Extremes
Hottest Day of 1991
119.0°F
Palm Springs, CA · Jul 28
Coldest Day of 1991
-60.0°F
Mcgrath, AK · Jan 15
Records Set in 1991
Daily Heat Records Set
1,293
calendar-day record highs set in 1991 that still stand today
Daily Cold Records Set
986
calendar-day record lows 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.
Month by Month
National temperature anomaly by month — red above the line is a warm month, blue below is cool.
-1.68J
+3.10F
+0.18M
+1.22A
+1.69M
-0.36J
-0.52J
-0.28A
-1.30S
-0.10O
-3.05N
+0.72D
Warmest Stations & States
Warmest Stations of 1991
| 1 | Greenwood MS | +2.61°F |
| 2 | Williston ND | +2.17°F |
| 3 | Klamath Falls OR | +2.14°F |
| 4 | Saranac Lake NY | +2.07°F |
| 5 | Pittsburgh PA | +1.98°F |
| 6 | Aberdeen SD | +1.96°F |
| 7 | Akron OH | +1.95°F |
| 8 | Challis ID | +1.93°F |
| 9 | Lynchburg VA | +1.92°F |
| 10 | Charleston WV | +1.90°F |
Coolest Stations of 1991
| 1 | Barrow AK | -4.82°F |
| 2 | Winslow AZ | -3.95°F |
| 3 | El Paso TX | -3.46°F |
| 4 | Las Vegas NV | -3.20°F |
| 5 | Alamosa CO | -2.99°F |
| 6 | Reno NV | -2.96°F |
| 7 | Borger TX | -2.89°F |
| 8 | Needles CA | -2.65°F |
| 9 | Salt Lake City UT | -2.61°F |
| 10 | Grand Junction CO | -2.44°F |
By State
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°
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