Average annual temperature is 14.0 °C
Absolute maximum temperature: 37.1 °C
Absolute minimum temperature: -10.3 °C
Number of sunny days: 260 days
Number of rainy days: 94 days
Number of snow days: 11 days
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* Weather data for Cooper 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) | 12.3 | 14.8 | 20.2 | 26.6 | 28.4 | 35.1 | 37.1 | 36.1 | 33.5 | 26.5 | 22.2 | 14.8 |
| Average daytime temperature (°C) | 7.2 | 9.3 | 14.2 | 20.3 | 24.6 | 29.7 | 34.0 | 31.2 | 27.6 | 22.0 | 14.0 | 9.3 |
| Average temperature (°C) | 1.9 | 3.0 | 7.5 | 12.6 | 18.3 | 23.4 | 27.5 | 24.8 | 21.4 | 15.3 | 7.6 | 3.5 |
| Average night temperature (°C) | -2.3 | -1.5 | 2.0 | 5.1 | 11.4 | 16.0 | 20.3 | 18.2 | 15.1 | 8.9 | 2.5 | -0.8 |
| Absolute minimum temperature (°C) | -10.3 | -10.3 | -4.2 | -4.9 | 6.7 | 11.1 | 15.7 | 14.6 | 10.9 | -5.2 | -5.1 | -6.2 |
| 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) | 10.2 | 11.0 | 12.0 | 13.0 | 13.9 | 14.4 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 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) | 8.1 | 8.7 | 9.9 | 11.8 | 12.6 | 13.0 | 12.7 | 11.5 | 10.9 | 10.3 | 8.9 | 8.3 |
| Precipitation (mm) | 29 | 22 | 20 | 6 | 6 | 9 | 7 | 12 | 15 | 1 | 18 | 26 |
| Sunny days | 21 | 16 | 18 | 25 | 22 | 27 | 19 | 17 | 18 | 28 | 23 | 26 |
| Rainy days | 5 | 7 | 12 | 5 | 9 | 3 | 12 | 14 | 12 | 3 | 7 | 5 |
| Snow days | 5 | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Cooper is at