Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Hannibal (MO) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Hannibal.
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Climate overview of Hannibal
The climate in Hannibal, Missouri, United States of America, is marked by large temperature swings across the seasons, ranging from 30°C (86°F) in July to 2°C (36°F) in January.
The city has a wet climate, receiving around 1097 mm (43 in) of rain/snowfall per year. Despite the high annual total, it has very warm summers and cold winters. June is the wettest month.
Hannibal Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Hannibal - and find the best time to visit.
Monthly Temperature in Hannibal
In Hannibal, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a very warm 30°C (86°F) in July to a chilly 2°C (36°F) in January.
Nighttime temperatures range from 20°C (68°F) in July to -7°C (19°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Hannibal
Hannibal experiences significant rain/snowfall throughout the year, averaging 1097 mm (43 in) of precipitation annually. The seasons in Hannibal bring significant changes in precipitation. The wettest month, June, receives high rainfall, with an average of 148 mm (5.8 in) of precipitation. This rainfall is distributed across 13 rainy days.
In contrast, the driest month, January, experiences much less snow/rainfall, totaling 38 mm (1.5 in) over 7 snowy/rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Hannibal Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Hannibal
The most comfortable overall weather for exploring Hannibal is usually found in May, June, September and October. Conditions are generally least comfortable in January, February and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
cold
Feb
cold
Mar
mixed
Apr
good
May
very good
Jun
very good
Jul
mixed
Aug
good
Sep
very good
Oct
very good
Nov
mixed
Dec
cold
- Best overall: May, June, September and October
- Warmest weather: July and August
- Seasonal pattern: Very warm summers and cold winters
- Coldest conditions: January, with freezing nights around -7°C (19°F).
Frequently asked questions about the climate in Hannibal
What is the best time to visit Hannibal?
May, June, September and October typically offer the most optimal weather in Hannibal. In contrast, January, February and December tend to have less optimal conditions. Hannibal has very warm summers and cold winters.
What temperatures can I expect in Hannibal?
Daytime highs range from 2°C (36°F) in January to 30°C (86°F) in July. Nighttime lows range from -7°C (19°F) to 20°C (68°F). Temperatures vary considerably through the year.
How much rain does Hannibal get?
Annual rainfall is around 1097 mm (43 in). June is the wettest month with 148 mm (5.8 in), while January is the driest with 38 mm (1.5 in).
Hannibal 3-Day Forecast
Hannibal on the map
Hannibal is highlighted - select any city to see its climate.
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