Hannibal Climate: Weather by Month and Best Time to Visit
Best months for Hannibal: September, August, June, October.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 3°C | -6°C | 52 mm | 7 | – | – | 4.6 |
| February | 6°C | -4°C | 57 mm | 7 | – | – | 5.2 |
| March | 12°C | 2°C | 80 mm | 10 | – | – | 6.1 |
| April | 19°C | 7°C | 113 mm | 11 | – | – | 7.0 |
| May | 24°C | 14°C | 119 mm | 13 | – | – | 7.2 |
| June | 29°C | 19°C | 105 mm | 10 | – | – | 7.6 |
| July | 31°C | 21°C | 90 mm | 9 | – | – | 7.3 |
| August | 30°C | 19°C | 80 mm | 9 | – | – | 7.7 |
| September | 26°C | 15°C | 83 mm | 7 | – | – | 8.1 |
| October | 19°C | 9°C | 74 mm | 9 | – | – | 7.5 |
| November | 12°C | 2°C | 78 mm | 8 | – | – | 6.3 |
| December | 5°C | -3°C | 57 mm | 8 | – | – | 5.0 |