Average annual temperature is 20.0 °C
Absolute maximum temperature: 41.1 °C
Absolute minimum temperature: -2.7 °C
Number of sunny days: 201 days
Number of rainy days: 164 days
Look at detailed online map of Jefferson
* Weather data for Jefferson 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) | 24.1 | 26.8 | 27.6 | 30.3 | 32.3 | 38.3 | 38.9 | 41.1 | 38.8 | 33.2 | 28.3 | 21.5 |
| Average daytime temperature (°C) | 16.2 | 18.3 | 21.8 | 23.4 | 28.9 | 34.1 | 35.9 | 38.4 | 32.9 | 25.8 | 19.0 | 16.2 |
| Average temperature (°C) | 11.4 | 12.4 | 15.8 | 17.3 | 22.9 | 27.4 | 29.8 | 31.9 | 26.7 | 20.0 | 13.5 | 10.6 |
| Average night temperature (°C) | 7.7 | 8.3 | 11.3 | 12.5 | 17.8 | 22.1 | 24.9 | 26.4 | 21.6 | 15.7 | 9.2 | 6.2 |
| Absolute minimum temperature (°C) | 0.0 | -2.7 | -0.7 | 8.0 | 9.1 | 18.9 | 21.2 | 20.9 | 17.4 | 3.5 | 0.2 | -1.1 |
| 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) | 10.3 | 11.0 | 12.0 | 13.0 | 13.8 | 14.3 | 14.1 | 13.3 | 12.4 | 11.4 | 10.5 | 10.0 |
| 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 | 9.0 |
| Sunshine mean duration (h) | 6.6 | 6.8 | 8.2 | 7.9 | 9.9 | 11.3 | 11.7 | 11.9 | 10.6 | 7.7 | 7.1 | 7.6 |
| Precipitation (mm) | 116 | 124 | 267 | 279 | 131 | 104 | 95 | 19 | 48 | 160 | 68 | 65 |
| Sunny days | 15 | 11 | 11 | 15 | 14 | 17 | 17 | 26 | 15 | 19 | 20 | 21 |
| Rainy days | 16 | 17 | 20 | 15 | 17 | 13 | 14 | 5 | 15 | 12 | 10 | 10 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Jefferson during the most sunny months:
The largest precipitation sum in Jefferson is at