Average annual temperature is 13.9 °C
Absolute maximum temperature: 37.3 °C
Absolute minimum temperature: -0.3 °C
Number of sunny days: 265 days
Number of rainy days: 100 days
Look at detailed online map of Haystack
* Weather data for Haystack 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) | 19.5 | 19.1 | 17.6 | 28.8 | 28.2 | 32.8 | 37.3 | 34.7 | 30.8 | 33.9 | 25.7 | 18.8 |
| Average daytime temperature (°C) | 14.3 | 13.8 | 13.8 | 18.7 | 20.6 | 23.8 | 30.1 | 30.4 | 26.6 | 25.4 | 18.8 | 15.5 |
| Average temperature (°C) | 9.2 | 7.7 | 8.7 | 11.8 | 14.1 | 16.3 | 19.6 | 20.5 | 18.1 | 16.9 | 12.6 | 10.8 |
| Average night temperature (°C) | 5.7 | 3.5 | 5.1 | 6.9 | 9.9 | 11.3 | 12.6 | 14.5 | 13.1 | 11.6 | 8.0 | 7.3 |
| Absolute minimum temperature (°C) | -0.3 | 0.5 | 1.0 | 2.5 | 6.8 | 8.7 | 10.3 | 11.4 | 10.3 | 3.7 | 2.0 | 1.3 |
| 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 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 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) | 5.7 | 7.7 | 7.8 | 11.2 | 11.5 | 12.8 | 13.2 | 12.2 | 10.7 | 9.0 | 7.9 | 5.7 |
| Precipitation (mm) | 319 | 78 | 276 | 9 | 32 | 0 | 0 | 0 | 2 | 23 | 68 | 211 |
| Sunny days | 13 | 16 | 10 | 26 | 22 | 28 | 31 | 30 | 26 | 22 | 22 | 19 |
| Rainy days | 18 | 12 | 21 | 4 | 9 | 2 | 0 | 1 | 4 | 9 | 8 | 12 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Haystack during the most sunny months:
The largest precipitation sum in Haystack is at