Average annual temperature is 10.0 °C
Absolute maximum temperature: 33.6 °C
Absolute minimum temperature: -23.6 °C
Number of sunny days: 167 days
Number of rainy days: 170 days
Number of snow days: 28 days
Look at detailed online map of Merrill
* Weather data for Merrill 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) | 7.0 | 11.9 | 13.4 | 27.3 | 33.0 | 33.6 | 33.3 | 31.5 | 31.8 | 29.2 | 16.2 | 14.2 |
| Average daytime temperature (°C) | 2.2 | 3.4 | 5.7 | 15.3 | 22.1 | 27.5 | 27.2 | 25.0 | 22.8 | 16.0 | 8.2 | 6.2 |
| Average temperature (°C) | -0.9 | -1.7 | 0.8 | 8.9 | 14.7 | 20.4 | 21.7 | 19.6 | 17.7 | 11.6 | 3.5 | 3.0 |
| Average night temperature (°C) | -3.5 | -5.7 | -3.3 | 3.2 | 7.8 | 14.0 | 16.5 | 14.9 | 13.2 | 8.3 | -0.1 | 0.8 |
| Absolute minimum temperature (°C) | -23.6 | -17.4 | -9.1 | -5.3 | 1.1 | 8.4 | 12.7 | 8.3 | 7.2 | -2.7 | -8.1 | -5.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.4 | 10.5 | 11.9 | 13.4 | 14.7 | 15.4 | 15.0 | 13.9 | 12.5 | 11.0 | 9.7 | 9.0 |
| Daylight minimum duration (h) | 9.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 2.8 | 6.2 | 6.6 | 8.7 | 10.6 | 11.8 | 12.0 | 10.5 | 8.1 | 6.0 | 6.1 | 3.5 |
| Precipitation (mm) | 61 | 82 | 76 | 83 | 23 | 44 | 155 | 115 | 37 | 81 | 55 | 49 |
| Sunny days | 9 | 16 | 10 | 13 | 21 | 17 | 6 | 15 | 15 | 11 | 18 | 16 |
| Rainy days | 13 | 8 | 11 | 17 | 10 | 13 | 25 | 16 | 15 | 20 | 8 | 14 |
| Snow days | 9 | 4 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 1 |
The best time to visit Merrill during the most sunny months:
Months with the longest average daylight duration in Merrill:
The largest precipitation sum in Merrill is at