Average annual temperature is 14.1 °C
Absolute maximum temperature: 37.9 °C
Absolute minimum temperature: -13.6 °C
Number of sunny days: 208 days
Number of rainy days: 151 days
Number of snow days: 6 days
Look at detailed online map of Hannibal
* Weather data for Hannibal 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) | 18.0 | 17.2 | 22.1 | 29.2 | 31.0 | 33.7 | 37.9 | 37.9 | 33.5 | 30.2 | 24.3 | 17.1 |
| Average daytime temperature (°C) | 7.0 | 10.0 | 11.5 | 20.3 | 25.7 | 29.6 | 31.5 | 29.6 | 27.5 | 20.1 | 12.9 | 9.4 |
| Average temperature (°C) | 2.0 | 3.6 | 5.8 | 13.2 | 19.4 | 23.8 | 25.9 | 24.6 | 21.6 | 15.1 | 7.7 | 5.3 |
| Average night temperature (°C) | -1.1 | -1.2 | 1.7 | 7.2 | 13.6 | 18.2 | 20.8 | 20.5 | 16.6 | 11.0 | 3.2 | 2.4 |
| Absolute minimum temperature (°C) | -11.8 | -13.6 | -8.9 | 1.2 | 5.6 | 11.3 | 16.3 | 14.1 | 12.3 | -1.2 | -6.8 | -5.6 |
| 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) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 14.9 | 14.7 | 13.7 | 12.5 | 11.2 | 10.0 | 9.4 |
| 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) | 5.4 | 7.6 | 6.8 | 10.3 | 11.5 | 12.6 | 12.2 | 10.4 | 10.2 | 7.3 | 7.6 | 5.1 |
| Precipitation (mm) | 62 | 87 | 102 | 26 | 81 | 33 | 33 | 141 | 24 | 80 | 15 | 88 |
| Sunny days | 17 | 18 | 15 | 18 | 18 | 19 | 17 | 12 | 16 | 16 | 24 | 18 |
| Rainy days | 9 | 9 | 16 | 12 | 13 | 11 | 14 | 19 | 14 | 15 | 6 | 13 |
| Snow days | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Hannibal during the most sunny months:
The largest precipitation sum in Hannibal is at