Zip 50138 (Knoxville, IA) Climate

The climate in Knoxville, Iowa (Zipcode 50138) is typically humid continental, which means the area experiences hot and humid summers and cold winters. Summers average highs of around 80 degrees Fahrenheit and lows of 60 degrees Fahrenheit while winter temperatures drop to averages of 25 degrees Fahrenheit for highs and 10-15 degrees Fahrenheit for lows. The area gets an average of 40 inches of rain per year with most of the precipitation occurring from April through September. Snowfall also occurs every winter with an average total of 18 inches throughout the season.

Knoxville (zip 50138), Iowa gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Knoxville (zip 50138) 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 Knoxville (zip 50138). The US average is 205 sunny days.

Knoxville (zip 50138) gets some kind of precipitation, on average, 93 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 12
Rain: averages 37 inches of rain a year
Snow: averages 28 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 50138 zip code is 7.0 (10=best), which means it is more comfortable than most places in Iowa.

8.7 Summer - 4.9 Winter

June, September and May are the most pleasant months in the 50138 zip code, while January and December are the least comfortable months.

Climate	Knoxville, Iowa	United States
	Unlock	38.1 in.
	27.9 in.	Unlock
	Unlock	106.2 days
	202 days	Unlock
	84.8°	85.8°
	Unlock	21.7°
	7	Unlock
	Unlock	4.3
	873 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 50138 zip code with an average high temperature of 84.8°, which ranks it as warmer than most places in Iowa. In the 50138 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 50138 zip code are September, June and August.

In the 50138 zip code, there are 13.4 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 the 50138 zip code with an average of 12.4°. This is warmer than most places in Iowa.

In the 50138 zip code, there are 136.8 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Iowa.

In the 50138 zip code, there are 13.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Iowa.

The humidity is usually comfortable in the 50138 zip code 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 the 50138 zip code are July, August and June.

June is the wettest month in the 50138 zip code with 4.8 inches of rain, and the driest month is January with 1.0 inches. The wettest season is Autumn with 39% of yearly precipitation and 10% occurs in Spring, which is the driest season. The annual rainfall of 36.6 inches in the 50138 zip code means that it is wetter than most places in Iowa.

May is the rainiest month in the 50138 zip code with 11.2 days of rain, and January is the driest month with only 5.0 rainy days. There are 93.1 rainy days annually in the 50138 zip code, 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 18% chance of a rainy day.

An annual snowfall of 27.9 inches in the 50138 zip code means that it is less snowy than most places in Iowa. December is the snowiest month in the 50138 zip code with 7.9 inches of snow, and 6 months of the year have significant snowfall.

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