Average annual temperature is 9.3 °C
Absolute maximum temperature: 32.0 °C
Absolute minimum temperature: -29.1 °C
Number of sunny days: 153 days
Number of rainy days: 192 days
Number of snow days: 20 days
Look at detailed online map of Town of Ashburnham
* Weather data for Town of Ashburnham 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) | 11.8 | 12.7 | 11.8 | 29.3 | 29.0 | 32.0 | 30.3 | 27.0 | 30.4 | 26.5 | 15.9 | 14.2 |
| Average daytime temperature (°C) | 3.6 | 3.3 | 5.4 | 14.2 | 19.5 | 22.1 | 26.2 | 23.6 | 21.0 | 16.5 | 6.7 | 6.1 |
| Average temperature (°C) | -0.2 | -2.0 | 0.8 | 8.3 | 13.1 | 16.8 | 21.6 | 19.0 | 16.9 | 12.1 | 2.3 | 1.9 |
| Average night temperature (°C) | -3.5 | -6.7 | -3.3 | 3.7 | 7.6 | 12.7 | 18.0 | 15.4 | 13.9 | 8.6 | -1.1 | -1.0 |
| Absolute minimum temperature (°C) | -10.0 | -29.1 | -8.9 | -3.8 | 1.1 | 5.9 | 12.2 | 12.4 | 7.9 | -0.4 | -7.2 | -8.0 |
| 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) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.3 | 15.0 | 13.9 | 12.5 | 11.1 | 9.8 | 9.1 |
| Daylight minimum duration (h) | 9.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.1 | 6.4 | 7.3 | 8.3 | 11.4 | 9.3 | 10.0 | 9.4 | 7.5 | 7.4 | 6.9 | 5.3 |
| Precipitation (mm) | 153 | 56 | 146 | 74 | 81 | 140 | 191 | 191 | 175 | 110 | 49 | 169 |
| Sunny days | 9 | 13 | 14 | 15 | 19 | 5 | 4 | 9 | 13 | 15 | 20 | 17 |
| Rainy days | 17 | 10 | 11 | 15 | 12 | 25 | 27 | 22 | 17 | 16 | 7 | 13 |
| Snow days | 5 | 5 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 1 |
The best time to visit Town of Ashburnham during the most sunny months:
Months with the longest average daylight duration in Town of Ashburnham:
The largest precipitation sum in Town of Ashburnham is at