Zip 63401 (Hannibal, MO) Climate

Hannibal, MO has a humid continental climate with warm summers and cold winters. The average high in the summer months of June through August is usually around 81 degrees Fahrenheit, while the average lows are typically in the mid-60s. Winters are cold and wet, with temperatures usually ranging from the mid-30s to low-40s during the day and dipping into the teens and single digits at night. Precipitation is plentiful throughout the year, though it is generally more prevalent during spring and fall months than during summer or winter.

Hannibal (zip 63401), Missouri gets 39 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Hannibal (zip 63401) averages 12 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 197 sunny days per year in Hannibal (zip 63401). The US average is 205 sunny days.

Hannibal (zip 63401) gets some kind of precipitation, on average, 103 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 87 degrees
Winter Low: the January low is 19
Rain: averages 39 inches of rain a year
Snow: averages 12 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 63401 zip code is 7.2 (10=best), which means it is more comfortable than most places in Missouri.

8 Summer - 5.4 Winter

September, June and May are the most pleasant months in the 63401 zip code, while January and December are the least comfortable months.

Climate	Hannibal, Missouri	United States
	Unlock	38.1 in.
	12.0 in.	Unlock
	Unlock	106.2 days
	197 days	Unlock
	86.9°	85.8°
	Unlock	21.7°
	7.2	Unlock
	Unlock	4.3
	631 ft.	Unlock

Climate

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for the 63401 zip code with an average high temperature of 86.9°, which ranks it as cooler than most places in Missouri. In the 63401 zip code, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the 63401 zip code are September, May and June.

In the 63401 zip code, there are 26.1 days annually when the high temperature is over 90°, which is cooler than most places in Missouri.

January has the coldest nighttime temperatures for the 63401 zip code with an average of 18.8°. This is colder than most places in Missouri.

In the 63401 zip code, there are 106.8 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Missouri.

In the 63401 zip code, there are 4.9 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Missouri.

The humidity can be uncomfortably heavy or close in the 63401 zip code during the summer months. July is the most humid month, though humidity is low for most of the year. July, August and June are the three most humid months in the 63401 zip code.

May is the wettest month in the 63401 zip code with 4.6 inches of rain, and the driest month is January with 1.8 inches. The wettest season is Autumn with 31% of yearly precipitation and 16% occurs in Spring, which is the driest season. The annual rainfall of 39.3 inches in the 63401 zip code means that it is drier than most places in Missouri.

May is the rainiest month in the 63401 zip code with 11.5 days of rain, and February is the driest month with only 6.8 rainy days. There are 103.1 rainy days annually in the 63401 zip code, which is rainier than most places in Missouri. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 21% chance of a rainy day.

An annual snowfall of 12.0 inches in the 63401 zip code means that it is less snowy than most places in Missouri. December is the snowiest month in the 63401 zip code with 3.6 inches of snow, and 4 months of the year have significant snowfall.

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