Average annual temperature is 11.9 °C
Absolute maximum temperature: 34.3 °C
Absolute minimum temperature: -13.6 °C
Number of sunny days: 176 days
Number of rainy days: 177 days
Number of snow days: 12 days
Look at detailed online map of Marshtown
* Weather data for Marshtown 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) | 17.2 | 14.6 | 17.1 | 26.5 | 31.2 | 32.8 | 33.3 | 34.3 | 32.6 | 29.2 | 22.3 | 14.7 |
| Average daytime temperature (°C) | 4.6 | 8.0 | 8.7 | 17.2 | 22.9 | 27.5 | 28.5 | 27.3 | 25.1 | 18.0 | 11.0 | 7.6 |
| Average temperature (°C) | 1.1 | 2.2 | 3.3 | 10.5 | 16.6 | 21.1 | 23.0 | 22.0 | 19.5 | 13.2 | 5.6 | 3.9 |
| Average night temperature (°C) | -1.8 | -1.8 | -0.6 | 4.8 | 10.8 | 15.4 | 17.8 | 17.3 | 14.7 | 9.3 | 1.4 | 1.3 |
| Absolute minimum temperature (°C) | -12.2 | -13.6 | -8.9 | -3.2 | 1.0 | 9.5 | 13.6 | 11.5 | 9.3 | -3.7 | -9.9 | -7.3 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| 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) | 3.3 | 7.3 | 6.4 | 9.0 | 10.2 | 11.3 | 12.2 | 10.7 | 9.1 | 7.0 | 7.1 | 4.0 |
| Precipitation (mm) | 74 | 93 | 125 | 55 | 77 | 59 | 99 | 138 | 47 | 125 | 21 | 63 |
| Sunny days | 9 | 17 | 9 | 16 | 21 | 17 | 8 | 13 | 15 | 13 | 24 | 14 |
| Rainy days | 18 | 9 | 18 | 14 | 10 | 13 | 23 | 18 | 15 | 17 | 6 | 16 |
| Snow days | 4 | 2 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 |
The best time to visit Marshtown during the most sunny months:
The largest precipitation sum in Marshtown is at