Average annual temperature is 14.6 °C
Absolute maximum temperature: 38.3 °C
Absolute minimum temperature: -11.5 °C
Number of sunny days: 217 days
Number of rainy days: 144 days
Number of snow days: 4 days
Look at detailed online map of Merwin
* Weather data for Merwin 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) | 15.0 | 19.4 | 24.9 | 26.7 | 31.7 | 38.3 | 37.1 | 37.9 | 35.0 | 30.6 | 23.8 | 15.6 |
| Average daytime temperature (°C) | 7.6 | 10.7 | 12.5 | 20.6 | 26.0 | 30.2 | 32.4 | 32.1 | 28.6 | 20.4 | 13.9 | 9.8 |
| Average temperature (°C) | 2.2 | 3.8 | 6.6 | 13.5 | 19.6 | 24.2 | 26.3 | 26.4 | 22.5 | 15.3 | 8.2 | 5.5 |
| Average night temperature (°C) | -1.5 | -1.1 | 2.0 | 7.6 | 14.3 | 18.7 | 21.6 | 21.8 | 17.3 | 11.1 | 4.0 | 2.3 |
| Absolute minimum temperature (°C) | -11.5 | -10.5 | -7.2 | 0.8 | 6.1 | 12.5 | 15.9 | 15.9 | 12.7 | -2.3 | -4.9 | -3.8 |
| 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 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.8 | 12.0 | 13.2 | 14.3 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 9.5 |
| 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) | 6.1 | 7.7 | 7.4 | 10.5 | 10.2 | 12.6 | 11.1 | 11.3 | 10.4 | 7.9 | 7.4 | 5.3 |
| Precipitation (mm) | 66 | 75 | 95 | 26 | 69 | 82 | 73 | 81 | 95 | 110 | 27 | 120 |
| Sunny days | 19 | 16 | 15 | 20 | 17 | 17 | 15 | 21 | 19 | 19 | 23 | 16 |
| Rainy days | 10 | 11 | 15 | 10 | 14 | 13 | 16 | 10 | 11 | 12 | 7 | 15 |
| Snow days | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Merwin during the most sunny months:
The largest precipitation sum in Merwin is at