Average annual temperature is 15.1 °C
Absolute maximum temperature: 36.9 °C
Absolute minimum temperature: -7.3 °C
Number of sunny days: 173 days
Number of rainy days: 188 days
Number of snow days: 4 days
Look at detailed online map of Merrimac
* Weather data for Merrimac 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) | 21.2 | 25.6 | 25.6 | 30.1 | 29.1 | 33.7 | 36.9 | 34.4 | 33.9 | 30.1 | 26.0 | 19.9 |
| Average daytime temperature (°C) | 12.6 | 15.0 | 15.5 | 21.8 | 24.0 | 27.5 | 32.2 | 29.3 | 27.3 | 22.0 | 16.1 | 12.6 |
| Average temperature (°C) | 6.8 | 8.7 | 9.0 | 14.6 | 17.7 | 21.4 | 25.6 | 23.7 | 21.0 | 16.0 | 9.2 | 6.8 |
| Average night temperature (°C) | 3.1 | 4.0 | 3.9 | 8.7 | 12.4 | 15.8 | 20.1 | 19.1 | 15.8 | 11.2 | 4.3 | 2.9 |
| Absolute minimum temperature (°C) | -6.2 | -7.3 | -7.2 | 1.3 | 4.1 | 9.9 | 15.4 | 13.3 | 11.2 | 3.4 | -5.8 | -4.7 |
| 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 | 14.7 | 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) | 4.8 | 7.0 | 7.5 | 9.9 | 9.9 | 11.6 | 11.7 | 10.1 | 9.8 | 7.8 | 7.3 | 5.4 |
| Precipitation (mm) | 101 | 119 | 73 | 59 | 77 | 36 | 91 | 145 | 66 | 39 | 47 | 81 |
| Sunny days | 11 | 14 | 19 | 17 | 15 | 14 | 6 | 10 | 15 | 16 | 20 | 16 |
| Rainy days | 19 | 13 | 11 | 13 | 16 | 16 | 25 | 21 | 15 | 15 | 9 | 15 |
| Snow days | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
The best time to visit Merrimac during the most sunny months:
The largest precipitation sum in Merrimac is at