Average annual temperature is 8.5 °C
Absolute maximum temperature: 36.5 °C
Absolute minimum temperature: -25.0 °C
Number of sunny days: 214 days
Number of rainy days: 117 days
Number of snow days: 34 days
Look at detailed online map of Township of Iona
* Weather data for Township of Iona 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) | 1.1 | 4.2 | 6.3 | 26.8 | 29.8 | 30.6 | 34.7 | 36.5 | 34.4 | 30.8 | 17.6 | 11.0 |
| Average daytime temperature (°C) | -5.4 | -2.6 | -0.1 | 11.9 | 23.1 | 27.1 | 27.3 | 28.0 | 25.3 | 14.6 | 8.7 | 4.6 |
| Average temperature (°C) | -8.4 | -7.4 | -4.7 | 5.8 | 16.7 | 21.8 | 21.4 | 22.2 | 19.7 | 10.1 | 3.3 | 0.0 |
| Average night temperature (°C) | -10.9 | -11.3 | -8.4 | 1.3 | 11.2 | 16.7 | 16.4 | 17.8 | 15.0 | 6.5 | -0.9 | -3.1 |
| Absolute minimum temperature (°C) | -23.7 | -25.0 | -17.4 | -9.6 | 2.0 | 10.0 | 10.6 | 11.7 | 8.9 | -6.8 | -11.0 | -8.9 |
| 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) | 9.3 | 10.5 | 11.9 | 13.4 | 14.7 | 15.4 | 15.1 | 14.0 | 12.5 | 11.0 | 9.7 | 9.0 |
| Daylight minimum duration (h) | 8.0 | 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) | 4.3 | 7.1 | 6.7 | 8.3 | 11.5 | 12.8 | 12.7 | 11.3 | 10.1 | 7.5 | 7.0 | 5.0 |
| Precipitation (mm) | 51 | 54 | 52 | 96 | 113 | 88 | 42 | 108 | 48 | 189 | 3 | 72 |
| Sunny days | 19 | 18 | 21 | 15 | 17 | 16 | 14 | 20 | 16 | 14 | 24 | 20 |
| Rainy days | 3 | 5 | 3 | 11 | 14 | 14 | 17 | 11 | 14 | 14 | 4 | 7 |
| Snow days | 9 | 5 | 7 | 4 | 0 | 0 | 0 | 0 | 0 | 3 | 2 | 4 |
The best time to visit Township of Iona during the most sunny months:
Months with the longest average daylight duration in Township of Iona:
The largest precipitation sum in Township of Iona is at