Average annual temperature is 17.1 °C
Absolute maximum temperature: 42.7 °C
Absolute minimum temperature: -7.8 °C
Number of sunny days: 275 days
Number of rainy days: 82 days
Number of snow days: 8 days
Look at detailed online map of Fort Sumner
* Weather data for Fort Sumner 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) | 20.8 | 22.2 | 26.1 | 30.3 | 32.8 | 40.4 | 42.7 | 41.7 | 38.8 | 30.7 | 28.4 | 22.0 |
| Average daytime temperature (°C) | 12.6 | 15.0 | 19.4 | 24.8 | 29.2 | 34.3 | 37.9 | 36.0 | 32.2 | 24.6 | 18.2 | 13.7 |
| Average temperature (°C) | 5.9 | 6.3 | 11.5 | 15.8 | 21.2 | 26.0 | 30.5 | 28.9 | 24.5 | 16.8 | 10.2 | 6.4 |
| Average night temperature (°C) | 0.4 | 0.1 | 4.9 | 8.0 | 13.8 | 18.0 | 23.0 | 22.2 | 17.3 | 10.0 | 4.1 | 1.0 |
| Absolute minimum temperature (°C) | -6.3 | -7.8 | -3.2 | 0.6 | 8.7 | 11.6 | 18.2 | 17.2 | 13.6 | -1.7 | -4.3 | -4.6 |
| 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) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 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) | 7.9 | 8.7 | 9.8 | 11.6 | 11.8 | 12.6 | 12.9 | 11.9 | 10.6 | 9.7 | 8.4 | 7.9 |
| Precipitation (mm) | 19 | 8 | 7 | 1 | 43 | 28 | 10 | 19 | 12 | 25 | 5 | 45 |
| Sunny days | 26 | 19 | 21 | 27 | 16 | 23 | 26 | 21 | 21 | 24 | 25 | 26 |
| Rainy days | 2 | 6 | 9 | 3 | 15 | 7 | 5 | 10 | 9 | 6 | 5 | 5 |
| Snow days | 3 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
The best time to visit Fort Sumner during the most sunny months:
The largest precipitation sum in Fort Sumner is at