Average annual temperature is 5.8 °C
Absolute maximum temperature: 32.5 °C
Absolute minimum temperature: -28.9 °C
Number of sunny days: 207 days
Number of rainy days: 111 days
Number of snow days: 47 days
Look at detailed online map of Township of Crystal Lake
* Weather data for Township of Crystal Lake 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) | 1.5 | 3.0 | -1.4 | 13.1 | 27.6 | 31.8 | 32.5 | 32.3 | 32.3 | 27.9 | 10.6 | 10.1 |
| Average daytime temperature (°C) | -6.6 | -4.5 | -6.5 | 4.0 | 21.4 | 25.5 | 25.0 | 25.7 | 22.7 | 11.4 | 4.1 | 1.5 |
| Average temperature (°C) | -9.8 | -9.2 | -10.0 | -0.1 | 15.1 | 20.5 | 19.6 | 20.4 | 17.1 | 6.6 | 0.0 | -2.2 |
| Average night temperature (°C) | -12.3 | -13.2 | -12.9 | -3.4 | 9.5 | 15.7 | 15.0 | 16.3 | 13.0 | 3.1 | -3.2 | -5.1 |
| Absolute minimum temperature (°C) | -27.2 | -28.9 | -19.8 | -12.5 | -1.1 | 9.4 | 10.1 | 10.9 | 8.0 | -13.8 | -12.6 | -14.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 10.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 |
| Daylight mean duration (h) | 9.0 | 10.3 | 11.9 | 13.6 | 15.1 | 15.9 | 15.5 | 14.2 | 12.6 | 10.9 | 9.3 | 8.5 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 3.7 | 6.9 | 7.7 | 8.7 | 11.6 | 12.2 | 13.1 | 10.4 | 9.3 | 7.3 | 6.3 | 5.4 |
| Precipitation (mm) | 9 | 11 | 43 | 57 | 121 | 95 | 56 | 88 | 100 | 52 | 10 | 24 |
| Sunny days | 24 | 17 | 14 | 16 | 16 | 15 | 13 | 16 | 16 | 16 | 20 | 24 |
| Rainy days | 1 | 1 | 1 | 9 | 15 | 15 | 18 | 15 | 14 | 12 | 7 | 3 |
| Snow days | 6 | 10 | 16 | 5 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 4 |
The best time to visit Township of Crystal Lake during the most sunny months:
Months with the longest average daylight duration in Township of Crystal Lake:
The largest precipitation sum in Township of Crystal Lake is at