Average annual temperature is 14.1 °C
Absolute maximum temperature: 38.1 °C
Absolute minimum temperature: -10.6 °C
Number of sunny days: 197 days
Number of rainy days: 163 days
Number of snow days: 5 days
Look at detailed online map of Custer
* Weather data for Custer 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) | 18.4 | 19.3 | 23.2 | 27.1 | 30.6 | 36.3 | 36.0 | 38.1 | 31.6 | 29.2 | 25.7 | 16.0 |
| Average daytime temperature (°C) | 8.6 | 12.0 | 13.4 | 20.0 | 25.5 | 29.5 | 30.9 | 29.6 | 26.9 | 20.5 | 14.5 | 10.4 |
| Average temperature (°C) | 3.5 | 5.4 | 6.9 | 13.1 | 18.8 | 22.9 | 24.8 | 24.0 | 20.6 | 14.7 | 8.4 | 5.4 |
| Average night temperature (°C) | 0.0 | 0.8 | 2.2 | 7.3 | 13.3 | 17.0 | 20.1 | 19.9 | 15.6 | 10.5 | 3.7 | 1.9 |
| Absolute minimum temperature (°C) | -10.6 | -9.5 | -7.5 | 0.0 | 5.6 | 11.0 | 15.3 | 13.5 | 9.8 | -3.6 | -5.0 | -5.8 |
| 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 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.5 | 13.6 | 12.4 | 11.2 | 10.2 | 9.6 |
| 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) | 5.4 | 7.2 | 7.7 | 10.4 | 10.5 | 12.9 | 11.7 | 10.1 | 10.9 | 7.6 | 7.7 | 6.1 |
| Precipitation (mm) | 99 | 100 | 213 | 95 | 49 | 48 | 72 | 183 | 19 | 57 | 14 | 51 |
| Sunny days | 15 | 17 | 13 | 20 | 15 | 16 | 8 | 14 | 20 | 20 | 22 | 17 |
| Rainy days | 13 | 10 | 18 | 10 | 16 | 14 | 23 | 17 | 10 | 11 | 8 | 13 |
| Snow days | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Custer during the most sunny months:
The largest precipitation sum in Custer is at