Zip 62664 (Mason City, IL) Climate

Mason City, IL (zip code 62664) has a humid continental climate with hot summers and cold winters. The summer months are typically very warm and humid with temperatures reaching upwards of 90 degrees Fahrenheit (32 degrees Celsius). Winters bring temperatures that can dip down to the single digits, while the temperature in the spring is mild and pleasant. Rainfall is generally spread out throughout the year, but late summer and early autumn tend to be the wettest months. Snowfall occurs during winter months, but is usually light due to the city’s relatively low elevation.

Mason City (zip 62664), Illinois gets 38 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Mason City (zip 62664) averages 15 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 Mason City (zip 62664). The US average is 205 sunny days.

Mason City (zip 62664) gets some kind of precipitation, on average, 99 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 85 degrees
Winter Low: the January low is 17
Rain: averages 38 inches of rain a year
Snow: averages 15 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 62664 zip code is 7.2 (10=best), which means it is one of the most pleasant places in Illinois.

8.5 Summer - 5.2 Winter

September, June and May are the most pleasant months in the 62664 zip code, while January and December are the least comfortable months.

Climate	Mason City, Illinois	United States
	Unlock	38.1 in.
	15.1 in.	Unlock
	Unlock	106.2 days
	197 days	Unlock
	84.9°	85.8°
	Unlock	21.7°
	7.2	Unlock
	Unlock	4.3
	571 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 62664 zip code with an average high temperature of 84.9°, which ranks it as about average compared to other places in Illinois. In the 62664 zip code, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the 62664 zip code are September, May and June.

In the 62664 zip code, there are 17.7 days annually when the high temperature is over 90°, which is about average compared to other places in Illinois.

January has the coldest nighttime temperatures for the 62664 zip code with an average of 17.1°. This is about average compared to other places in Illinois.

In the 62664 zip code, there are 120.9 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Illinois.

In the 62664 zip code, there are 6.5 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Illinois.

The humidity can be uncomfortably heavy or close in the 62664 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 62664 zip code.

July is the wettest month in the 62664 zip code with 4.4 inches of rain, and the driest month is February with 1.7 inches. The wettest season is Autumn with 32% of yearly precipitation and 16% occurs in Spring, which is the driest season. The annual rainfall of 37.7 inches in the 62664 zip code means that it is drier than most places in Illinois.

May is the rainiest month in the 62664 zip code with 10.9 days of rain, and February is the driest month with only 6.5 rainy days. There are 99.4 rainy days annually in the 62664 zip code, which is less rainy than most places in Illinois. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 22% chance of a rainy day.

An annual snowfall of 15.1 inches in the 62664 zip code means that it is less snowy than most places in Illinois. January is the snowiest month in the 62664 zip code with 5.0 inches of snow, and 4 months of the year have significant snowfall.

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