The Year in Heat & Cold
1977
-1.14°F
ran -1.14°F cooler than the 1996–2025 average across 373 cities — the 66th warmest of 157 years on record.
Hottest Day of 1977
117.0°F
Needles, CA · Jun 30
Coldest Day of 1977
-52.0°F
Fairbanks, AK · Dec 13
Daily Heat Records Set
1,159
calendar-day record highs set in 1977 that still stand today
Daily Cold Records Set
1,360
calendar-day record lows set in 1977 that still stand today
Where the Year Ran Warm & Cold
Each city's 1977 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 1977 — 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.
Warmest Stations & States
Warmest states of 1977
Colorado+0.67°Hawaii+0.19°Nebraska+0.02°Oklahoma+-0.00°Kansas-0.05°South Dakota-0.29°
Coolest states of 1977
New Hampshire-2.57°Florida-2.23°Pennsylvania-2.22°Delaware-2.13°Ohio-2.09°Vermont-2.03°