Average annual temperature is 17.1 °C
Absolute maximum temperature: 39.9 °C
Absolute minimum temperature: -10.1 °C
Number of sunny days: 222
Number of rainy days: 143
Number of snow days:
Average annual precipitation: 948 mm
Look at detailed online map of Waterloo
* Weather data for Waterloo United States is based on climate observations for 2023 year
| Jan | Feb | Mar | Apr | Maggio | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 20.7 | 22.2 | 26.3 | 31.6 | 34 | 38.7 | 38.7 | 39.9 | 38.6 | 31.1 | 26.5 | 18.4 |
| Average daytime temperature (°C) | 12.1 | 13.1 | 17 | 22.5 | 26.6 | 31.4 | 34.8 | 35.3 | 31.1 | 23 | 16.7 | 12.8 |
| Average temperature (°C) | 6 | 6.7 | 10.4 | 15.6 | 20.8 | 25.4 | 28.6 | 29.2 | 25.2 | 17.6 | 11.2 | 7.7 |
| Average night temperature (°C) | 1.8 | 2.2 | 5.7 | 10.1 | 16.2 | 20.3 | 23.7 | 24 | 20.4 | 13.3 | 7 | 4.2 |
| Absolute minimum temperature (°C) | -10.1 | -6.4 | -5 | 3.8 | 6.7 | 15.9 | 18.8 | 17.7 | 15.5 | -0.2 | -3.8 | -2.8 |
| Jan | Feb | Mar | Apr | Maggio | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.4 | 11.4 | 12.5 | 13.6 | 14.4 | 14.6 | 14.5 | 14 | 12.9 | 11.8 | 10.7 | 9.9 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12 | 13.1 | 14.1 | 14.5 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.8 | 10.5 | 11.4 | 12.6 | 13.6 | 14.4 | 14 | 13 | 11.9 | 10.8 | 9.9 | 9.7 |
| Sunshine mean duration (h) | 7 | 7.2 | 8.3 | 9.9 | 10.2 | 11.7 | 11.9 | 12.2 | 10.6 | 9 | 8.5 | 7.2 |
| Precipitation (mm) | 29 | 64 | 45 | 104 | 80 | 153 | 112 | 66 | 91 | 74 | 79 | 51 |
| Sunny days | 21 | 16 | 18 | 18 | 13 | 13 | 18 | 19 | 20 | 20 | 23 | 23 |
| Rainy days | 10 | 12 | 13 | 12 | 18 | 17 | 13 | 12 | 10 | 11 | 7 | 8 |
The best time to visit Waterloo during the most sunny months:
The largest precipitation sum in Waterloo is at