Climate and monthly weather forecast
Hannibal, MO

The stunning Mark Twain Memorial Lighthouse stands tall in white among the surrounding rocks and greenery in Hannibal, Missouri
The stunning Mark Twain Memorial Lighthouse stands tall in white among the surrounding rocks and greenery in Hannibal, Missouri

Weather in January

January, like December, in Hannibal, Missouri, is another cold winter month, with an average temperature varying between 21.6°F (-5.8°C) and 34°F (1.1°C). January is the coldest month, with an average high-temperature of 34°F (1.1°C) and an average low-temperature of 21.6°F (-5.8°C). Weather in January »

Weather in February

February, the last month of the winter in Hannibal, is another cold month, with an average temperature varying between 38.8°F (3.8°C) and 24.8°F (-4°C). In Hannibal, Missouri, the average high-temperature in February is almost the same as in January - a still cold 38.8°F (3.8°C). Weather in February »

Weather in March

March, the first month of the spring in Hannibal, is a cool month, with an average temperature varying between 51.6°F (10.9°C) and 35.8°F (2.1°C). In March, the average high-temperature increases from a cold 38.8°F (3.8°C) in February to a cool 51.6°F (10.9°C). Weather in March »

Weather in April

April is an enjoyable spring month in Hannibal, Missouri, with an average temperature varying between 45.5°F (7.5°C) and 63.5°F (17.5°C). In April, the average high-temperature rises from a cool 51.6°F (10.9°C) in March to a comfortable 63.5°F (17.5°C). Weather in April »

Weather in May

May, the last month of the spring in Hannibal, is an agreeable month, with temperature in the range of an average high of 72.7°F (22.6°C) and an average low of 55.8°F (13.2°C). In May, the average high-temperature increases from a comfortable 63.5°F (17.5°C) in April to an agreeable 72.7°F (22.6°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Hannibal, Missouri, with an average temperature ranging between max 82°F (27.8°C) and min 64.4°F (18°C). In June, the average high-temperature increases from an agreeable 72.7°F (22.6°C) in May to a moderately hot 82°F (27.8°C). Weather in June »

Weather in July

July, like June, in Hannibal, Missouri, is another warm summer month, with an average temperature fluctuating between 67.1°F (19.5°C) and 84.7°F (29.3°C). July is the warmest month, with an average high-temperature of 84.7°F (29.3°C) and an average low-temperature of 67.1°F (19.5°C). The average heat index in July is evaluated at a sweltering 96.1°F (35.6°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Hannibal, Missouri, with an average temperature fluctuating between 64.9°F (18.3°C) and 83.8°F (28.8°C). In Hannibal, Missouri, the average high-temperature in August is relatively the same as in July - a still moderately hot 83.8°F (28.8°C). Weather in August »

Weather in September

September, the first month of the autumn in Hannibal, is also a moderately hot month, with an average temperature ranging between max 78.4°F (25.8°C) and min 58.3°F (14.6°C). In September, the average high-temperature slightly decreases from a moderately hot 83.8°F (28.8°C) in August to a still warm 78.4°F (25.8°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Hannibal, Missouri, with an average temperature ranging between min 47.1°F (8.4°C) and max 64.4°F (18°C). In Hannibal, the average high-temperature in October drops from a moderately hot 78.4°F (25.8°C) in September to a comfortable 64.4°F (18°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Hannibal, Missouri, with temperature in the range of an average high of 51.4°F (10.8°C) and an average low of 36.1°F (2.3°C). In November, the average high-temperature decreases from a comfortable 64.4°F (18°C) in October to a fresh 51.4°F (10.8°C). Weather in November »

Weather in December

December, the first month of the winter in Hannibal, is also a wintry month, with an average temperature fluctuating between 39.6°F (4.2°C) and 27.1°F (-2.7°C). In December, the average high-temperature decreases from a fresh 51.4°F (10.8°C) in November to a cold 39.6°F (4.2°C). Weather in December »
[Resources]

FAQ

What is the coldest month in Hannibal?

The coldest month in Hannibal, Missouri, is January, with an average high-temperature of 34°F (1.1°C) and an average low-temperature of 21.6°F (-5.8°C).

What is the driest month in Hannibal?

January is the month with the least rainfall in Hannibal, Missouri. Rain falls for 5.3 days and accumulates 1.14" (29mm) of precipitation.

How many days does it rain in Hannibal?

Throughout the year, there are 136 rainfall days, and 25" (635mm) of precipitation is accumulated.

When does it snow in Hannibal?

January through April, November and December are months with snowfall.

When does it snow the most in Hannibal?

The month with the most snowfall is January, when snow falls for 6.2 days and typically aggregates up to 3.31" (84mm) of snow.

How much does it snow in Hannibal?

In Hannibal, Missouri, during the entire year, snow falls for 20 days and aggregates up to 8.5" (216mm) of snow.

What is the month with the least sunshine in Hannibal?

The month with the least sunshine is January, with an average of 4.5h of sunshine.

When is the lowest UV index in Hannibal?

The months with the lowest UV index in Hannibal, Missouri, are January, February, November and December, with an average maximum UV index of 2.

When is Daylight Saving Time (DST) in Hannibal?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Hannibal, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from CDT to CST.

What are the most humid months in Hannibal?

May through July, with an average relative humidity of 80%, are most humid months.

What is the wettest month in Hannibal?

May is the month with the most rainfall in Hannibal, Missouri. Rain falls for 17.3 days and accumulates 3.39" (86mm) of precipitation.

When it does not snow in Hannibal?

May through October are months without snowfall in Hannibal, Missouri.

When are the longest days in Hannibal?

With an average of 14h and 56min of daylight, June has the longest days of the year in Hannibal.

What are the months with the highest UV index in Hannibal?

The months with the highest UV index in Hannibal are June through August, with an average maximum UV index of 6.

What is the warmest month in Hannibal?

With an average high-temperature of 84.7°F (29.3°C) and an average low-temperature of 67.1°F (19.5°C), July is the warmest month in Hannibal, Missouri.

What month has the most sunshine in Hannibal?

With an average of 10.5h of sunshine, July has the most sunshine of the year in Hannibal, Missouri.

What is the least humid month in Hannibal?

With an average relative humidity of 70%, October is the least humid month in Hannibal, Missouri.

What is the month with the shortest days in Hannibal?

The month with the shortest days in Hannibal, Missouri, is December, with an average of 9h and 25min of daylight.

Average temperature
Hannibal, MO

Average temperature - Hannibal, MO

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (34°F).

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

[Resources]

Average pressure
Hannibal, MO

Average pressure - Hannibal, MO

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

[Resources]

Average wind speed
Hannibal, MO

Average wind speed - Hannibal, MO

The windiest months (with the highest average wind speed) are January, February and April (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).

[Resources]

Average humidity
Hannibal, MO

Average humidity - Hannibal, MO

The months with the highest relative humidity are May, June and July (80%).
The month with the lowest relative humidity is October (70%).

[Resources]

Average rainfall
Hannibal, MO

Average rainfall - Hannibal, MO

The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is January (1.14").

[Resources]

Average rainfall days
Hannibal, MO

Average rainfall days - Hannibal, MO

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (5.3 days).

[Resources]

Average snowfall
Hannibal, MO

Average snowfall - Hannibal, MO

The month with the highest snowfall is January (3.31").
The months with the least snowfall are May, June, July, August, September and October (0").

[Resources]

Average snowfall days
Hannibal, MO

Average snowfall days - Hannibal, MO

The month with the highest number of snowfall days is January (6.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

[Resources]

Average daylight / Average sunshine
Hannibal, MO

Average daylight / Average sunshine - Hannibal, MO

The month with the longest days is June (Average daylight: 14h and 56min).
The month with the shortest days is December (Average daylight: 9h and 25min).

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

[Resources]

Average sunshine days
Hannibal, MO

Average sunshine days - Hannibal, MO

The month with the most sunshine days is December (20.3 days).
The month with the least sunshine days is June (11.6 days).

[Resources]

Average UV index
Hannibal, MO

Average UV index - Hannibal, MO

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

[Resources]

Average visibility
Hannibal, MO

Average visibility - Hannibal, MO

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location