The Year in Heat & Cold
2004
-0.72°F
ran -0.72°F cooler than the 1996–2025 average across 385 cities — the 117th coldest of 157 years on record.
Coldest Day of 2004
-52.0°F
Bettles, AK · Dec 24
Hottest Day of 2004
117.0°F
Needles, CA · Aug 9
Daily Cold Records Set
677
calendar-day record lows set in 2004 that still stand today
Daily Heat Records Set
597
calendar-day record highs set in 2004 that still stand today
Where the Year Ran Warm & Cold
Each city's 2004 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 2004 — 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 2004
Alaska+1.05°Washington+0.47°Hawaii+0.31°Oregon+0.19°Wyoming+0.06°South Dakota-0.03°
Coolest states of 2004
Vermont-2.92°Utah-2.34°Maine-2.08°Massachusetts-1.80°New York-1.71°Rhode Island-1.70°