Average annual temperature is 7.2 °C
Absolute maximum temperature: 31.9 °C
Absolute minimum temperature: -31.5 °C
Number of sunny days: 122 days
Number of rainy days: 194 days
Number of snow days: 49 days
Look at detailed online map of St Johnsbury
* Weather data for St Johnsbury 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) | 6.2 | 8.1 | 8.1 | 25.2 | 29.9 | 31.9 | 30.5 | 25.6 | 29.2 | 27.5 | 12.0 | 12.0 |
| Average daytime temperature (°C) | 0.6 | -0.2 | 3.3 | 13.2 | 18.2 | 21.5 | 25.2 | 22.1 | 21.4 | 15.2 | 4.7 | 2.6 |
| Average temperature (°C) | -3.1 | -6.1 | -1.5 | 6.6 | 11.6 | 16.3 | 20.2 | 17.2 | 15.8 | 10.3 | 0.0 | -1.4 |
| Average night temperature (°C) | -6.6 | -11.9 | -6.3 | 1.4 | 5.4 | 11.6 | 16.0 | 13.0 | 11.3 | 6.5 | -3.4 | -4.7 |
| Absolute minimum temperature (°C) | -15.6 | -31.5 | -12.9 | -6.3 | -1.3 | 5.7 | 11.1 | 7.4 | 4.4 | -1.2 | -9.0 | -13.6 |
| 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 | 10.4 | 11.9 | 13.5 | 14.8 | 15.5 | 15.2 | 14.0 | 12.5 | 11.0 | 9.6 | 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) | 2.9 | 6.1 | 6.1 | 7.6 | 11.3 | 8.5 | 10.1 | 9.9 | 8.3 | 5.3 | 5.7 | 3.2 |
| Precipitation (mm) | 90 | 47 | 85 | 86 | 69 | 144 | 258 | 170 | 57 | 104 | 62 | 120 |
| Sunny days | 6 | 11 | 12 | 11 | 17 | 8 | 2 | 4 | 15 | 11 | 12 | 13 |
| Rainy days | 12 | 6 | 7 | 18 | 14 | 22 | 29 | 27 | 15 | 20 | 11 | 13 |
| Snow days | 13 | 11 | 12 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 5 |
The best time to visit St Johnsbury during the most sunny months:
Months with the longest average daylight duration in St Johnsbury:
The largest precipitation sum in St Johnsbury is at