Average annual temperature is 20.2 °C
Absolute maximum temperature: 37.8 °C
Absolute minimum temperature: -1.8 °C
Number of sunny days: 169 days
Number of rainy days: 196 days
Look at detailed online map of Needham
* Weather data for Needham 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) | 25.6 | 29.3 | 30.1 | 33.2 | 32.9 | 34.4 | 37.8 | 37.0 | 33.2 | 28.3 | 26.9 | 24.6 |
| Average daytime temperature (°C) | 19.9 | 23.3 | 24.6 | 26.9 | 28.2 | 31.0 | 34.3 | 33.6 | 29.9 | 24.9 | 20.2 | 17.3 |
| Average temperature (°C) | 13.2 | 16.8 | 17.8 | 20.1 | 22.1 | 25.2 | 28.0 | 27.8 | 24.2 | 19.3 | 14.9 | 12.2 |
| Average night temperature (°C) | 8.2 | 12.2 | 12.3 | 14.7 | 17.3 | 20.8 | 23.3 | 23.5 | 19.7 | 14.8 | 10.7 | 8.3 |
| Absolute minimum temperature (°C) | -1.8 | 1.6 | 1.3 | 8.2 | 11.1 | 16.6 | 20.9 | 21.6 | 15.7 | 7.5 | 0.7 | 0.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.4 | 11.1 | 12.0 | 12.9 | 13.7 | 14.1 | 13.9 | 13.3 | 12.4 | 11.4 | 10.6 | 10.2 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 7.6 | 8.6 | 8.9 | 9.6 | 10.3 | 10.5 | 11.5 | 10.8 | 10.1 | 9.1 | 6.7 | 6.7 |
| Precipitation (mm) | 63 | 108 | 61 | 177 | 96 | 140 | 120 | 115 | 98 | 47 | 52 | 159 |
| Sunny days | 17 | 16 | 17 | 10 | 13 | 8 | 7 | 5 | 14 | 22 | 19 | 21 |
| Rainy days | 14 | 12 | 14 | 20 | 18 | 22 | 24 | 26 | 16 | 9 | 11 | 10 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Needham is at