Average annual temperature is 12.4 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: -13.3 °C
Number of sunny days: 172 days
Number of rainy days: 176 days
Number of snow days: 17 days
Look at detailed online map of Smithson
* Weather data for Smithson 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) | 17.7 | 16.9 | 19.0 | 26.8 | 32.1 | 34.1 | 34.5 | 35.3 | 31.9 | 29.4 | 22.8 | 14.8 |
| Average daytime temperature (°C) | 5.2 | 8.8 | 9.3 | 18.1 | 24.4 | 28.7 | 29.0 | 27.1 | 25.3 | 18.5 | 11.5 | 7.9 |
| Average temperature (°C) | 1.4 | 2.6 | 3.9 | 11.1 | 17.8 | 22.0 | 23.3 | 22.1 | 19.8 | 13.6 | 6.0 | 4.1 |
| Average night temperature (°C) | -1.4 | -1.5 | -0.3 | 5.3 | 11.8 | 16.1 | 18.3 | 17.7 | 15.2 | 9.8 | 1.7 | 1.4 |
| Absolute minimum temperature (°C) | -12.1 | -13.3 | -9.7 | -2.3 | 1.9 | 9.7 | 13.3 | 11.5 | 9.1 | -3.1 | -9.8 | -7.5 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.7 | 11.9 | 13.3 | 14.5 | 15.0 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.4 | 7.4 | 6.6 | 8.9 | 10.6 | 11.7 | 12.3 | 10.7 | 9.5 | 6.9 | 7.2 | 4.3 |
| Precipitation (mm) | 73 | 84 | 107 | 60 | 75 | 47 | 91 | 143 | 66 | 119 | 21 | 77 |
| Sunny days | 8 | 16 | 12 | 15 | 18 | 18 | 11 | 14 | 16 | 11 | 20 | 13 |
| Rainy days | 15 | 10 | 17 | 15 | 13 | 12 | 20 | 17 | 14 | 19 | 8 | 16 |
| Snow days | 8 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 2 |
The best time to visit Smithson during the most sunny months:
The largest precipitation sum in Smithson is at