Jasper County, IA Climate

Jasper County, Iowa has a humid continental climate. Summers are typically hot and humid with temperatures reaching into the mid-90s during the day, while winters are cold with temperatures dropping into the single digits at night. Precipitation is relatively evenly spread throughout the year, though it tends to be slightly higher in spring and summer months. The area usually receives around 34 inches of snow annually. There is plenty of sunshine during both winter and summer months with an average of 210 sunny days per year.

Jasper County, Iowa gets 36 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Jasper County averages 28 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 Jasper County. The US average is 205 sunny days.

Jasper County gets some kind of precipitation, on average, 101 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 11
Rain: averages 36 inches of rain a year
Snow: averages 28 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Jasper County is 6.9 (10=best), which means it is more comfortable than most places in Iowa.

8.7 Summer - 4.7 Winter

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

Climate	Jasper, Iowa	United States
	36.1 in.	38.1 in.
	27.9 in.	27.8 in.
	100.7 days	106.2 days
	202 days	205 days
	84.6°	85.8°
	10.7°	21.7°
	6.9	7
	3.9	4.3
	899 ft.	2443 ft.

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 Jasper County with an average high temperature of 84.6°, which ranks it as warmer than most places in Iowa. In Jasper County, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Jasper County are September, June and August.

In Jasper County, there are 13.1 days annually when the high temperature is over 90°, which is about average compared to other places in Iowa.

January has the coldest nighttime temperatures for Jasper County with an average of 10.7°. This is warmer than most places in Iowa.

In Jasper County, there are 146.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Iowa.

In Jasper County, there are 16.2 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Iowa.

The humidity is usually comfortable in Jasper 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 Jasper County are July, August and June.

June is the wettest month in Jasper County with 4.8 inches of rain, and the driest month is January with 0.9 inches. The wettest season is Autumn with 39% of yearly precipitation and 9% occurs in Spring, which is the driest season. The annual rainfall of 36.1 inches in Jasper County means that it is wetter than most places in Iowa.

May is the rainiest month in Jasper County with 11.8 days of rain, and January is the driest month with only 5.8 rainy days. There are 100.7 rainy days annually in Jasper County, which is rainier 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 18% chance of a rainy day.

An annual snowfall of 27.9 inches in Jasper County means that it is less snowy than most places in Iowa. January is the snowiest month in Jasper County with 7.2 inches of snow, and 6 months of the year have significant snowfall.

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