Average annual temperature is 22.4 °C
Absolute maximum temperature: 41.4 °C
Absolute minimum temperature: -0.6 °C
Number of sunny days: 186 days
Number of rainy days: 179 days
Look at detailed online map of Union
* Weather data for Union 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) | 28.4 | 30.5 | 32.3 | 33.9 | 32.5 | 41.2 | 40.7 | 41.4 | 39.6 | 35.2 | 30.0 | 26.5 |
| Average daytime temperature (°C) | 20.4 | 21.0 | 25.8 | 26.1 | 29.0 | 36.6 | 37.7 | 39.6 | 36.0 | 28.4 | 21.1 | 20.7 |
| Average temperature (°C) | 14.4 | 14.3 | 19.4 | 20.1 | 23.8 | 29.5 | 31.1 | 32.4 | 29.8 | 22.7 | 16.1 | 14.4 |
| Average night temperature (°C) | 10.1 | 9.8 | 15.0 | 15.6 | 19.7 | 23.8 | 25.6 | 26.4 | 24.8 | 18.5 | 12.4 | 9.6 |
| Absolute minimum temperature (°C) | -0.6 | 0.1 | 5.9 | 10.7 | 14.7 | 18.7 | 23.8 | 24.4 | 22.5 | 6.5 | 4.8 | 2.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 14.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.5 | 11.2 | 12.0 | 12.9 | 13.6 | 14.0 | 13.8 | 13.2 | 12.3 | 11.5 | 10.7 | 10.3 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 6.8 | 6.9 | 7.0 | 7.6 | 8.9 | 11.7 | 12.1 | 12.0 | 10.4 | 8.1 | 5.8 | 7.4 |
| Precipitation (mm) | 72 | 33 | 107 | 250 | 186 | 40 | 27 | 5 | 27 | 104 | 47 | 35 |
| Sunny days | 18 | 13 | 10 | 11 | 7 | 17 | 24 | 22 | 14 | 14 | 16 | 20 |
| Rainy days | 13 | 15 | 21 | 19 | 24 | 13 | 7 | 9 | 16 | 17 | 14 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Union during the most sunny months:
The largest precipitation sum in Union is at