Clarke County, IA Climate

The climate in Clarke, IA County is typified by hot, humid summers and cold, snowy winters. The springtime brings frequent rain showers and thunderstorms while the autumn months are often warm and sunny. Summers in Clarke County are usually sunny and hot with temperatures reaching into the mid to upper 80s Fahrenheit on most days. Winters are cold but can be quite variable depending on prevailing weather patterns; temperatures in the winter typically drop below freezing with an average snowfall of around 15 inches per season.

Clarke County, Iowa gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Clarke County averages 27 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 202 sunny days per year in Clarke County. The US average is 205 sunny days.

Clarke County gets some kind of precipitation, on average, 94 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 86 degrees
Winter Low: the January low is 12
Rain: averages 37 inches of rain a year
Snow: averages 27 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Clarke County is 7.0 (10=best), which means it is more comfortable than most places in Iowa.

8.6 Summer - 4.9 Winter

June, September and August are the most pleasant months in Clarke County, while January and December are the least comfortable months.

Climate	Clarke, Iowa	United States
	Unlock	38.1 in.
	26.7 in.	Unlock
	Unlock	106.2 days
	202 days	Unlock
	85.5°	85.8°
	Unlock	21.7°
	7	Unlock
	Unlock	4.3
	1098 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 Clarke County with an average high temperature of 85.5°, which ranks it as warmer than most places in Iowa. In Clarke County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Clarke County are September, June and August.

In Clarke County, there are 17.1 days annually when the high temperature is over 90°, which is hotter than most places in Iowa.

January has the coldest nighttime temperatures for Clarke County with an average of 11.8°. This is warmer than most places in Iowa.

In Clarke County, there are 146.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Iowa.

In Clarke County, there are 15.0 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Iowa.

The humidity is usually comfortable in Clarke County but some summer months can be unpleasant. July is the most humid month, though humidity is low for most of the year. The most humid months in Clarke County are July, August and June.

May is the wettest month in Clarke County with 5.1 inches of rain, and the driest month is January with 0.9 inches. The wettest season is Autumn with 38% of yearly precipitation and 9% occurs in Spring, which is the driest season. The annual rainfall of 37.3 inches in Clarke County means that it is wetter than most places in Iowa.

May is the rainiest month in Clarke County with 11.7 days of rain, and January is the driest month with only 4.8 rainy days. There are 94.4 rainy days annually in Clarke County, which is less rainy than most places in Iowa. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 17% chance of a rainy day.

An annual snowfall of 26.7 inches in Clarke County means that it is less snowy than most places in Iowa. January is the snowiest month in Clarke County with 6.9 inches of snow, and 6 months of the year have significant snowfall.

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