Average annual temperature is 9.1 °C
Absolute maximum temperature: 33.0 °C
Absolute minimum temperature: -31.4 °C
Number of sunny days: 125 days
Number of rainy days: 206 days
Number of snow days: 34 days
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* Weather data for New Haven United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 8.5 | 12.0 | 10.2 | 27.7 | 30.8 | 33.0 | 31.8 | 27.0 | 30.2 | 27.8 | 15.3 | 11.6 |
| Average daytime temperature (°C) | 1.8 | 2.2 | 4.7 | 15.3 | 19.5 | 23.4 | 26.9 | 23.5 | 22.2 | 16.3 | 6.1 | 4.4 |
| Average temperature (°C) | -1.5 | -3.7 | 0.0 | 8.8 | 13.1 | 18.0 | 21.8 | 18.9 | 17.1 | 12.3 | 2.0 | 1.1 |
| Average night temperature (°C) | -4.6 | -8.7 | -3.9 | 3.7 | 7.3 | 13.4 | 17.9 | 15.1 | 12.8 | 9.2 | -1.1 | -1.7 |
| Absolute minimum temperature (°C) | -13.9 | -31.4 | -9.0 | -5.0 | -0.4 | 7.6 | 13.3 | 10.1 | 5.3 | 0.1 | -7.4 | -9.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.3 | 10.5 | 11.9 | 13.5 | 14.8 | 15.4 | 15.1 | 14.0 | 12.5 | 11.0 | 9.7 | 8.9 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 2.8 | 5.7 | 5.6 | 7.7 | 11.1 | 10.1 | 10.5 | 9.9 | 8.6 | 6.2 | 5.7 | 3.4 |
| Precipitation (mm) | 115 | 53 | 97 | 98 | 109 | 134 | 236 | 146 | 46 | 125 | 73 | 146 |
| Sunny days | 5 | 9 | 8 | 14 | 20 | 8 | 2 | 6 | 15 | 12 | 14 | 12 |
| Rainy days | 14 | 10 | 16 | 16 | 11 | 22 | 29 | 25 | 15 | 19 | 14 | 15 |
| Snow days | 12 | 9 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 4 |
The best time to visit New Haven during the most sunny months:
Months with the longest average daylight duration in New Haven:
The largest precipitation sum in New Haven is at