Zip 51040 (Onawa, IA) Climate

Onawa, IA has a mild climate with warm summers and cold winters. The average temperature in the summer is around 70 degrees Fahrenheit (21°C), while in the winter it can drop to an average of 23 degrees Fahrenheit (-5°C). Rainfall is fairly evenly distributed throughout the year, with an average annual precipitation of around 34 inches (86 cm). The region experiences all four seasons, although snowfall usually only occurs during the colder months. Overall, Onawa has a pleasant climate that offers ample opportunity for outdoor activities throughout the year.

Onawa (zip 51040), Iowa gets 32 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Onawa (zip 51040) averages 26 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 208 sunny days per year in Onawa (zip 51040). The US average is 205 sunny days.

Onawa (zip 51040) gets some kind of precipitation, on average, 80 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 10
Rain: averages 32 inches of rain a year
Snow: averages 26 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 51040 zip code is 7.1 (10=best), which means it is one of the most pleasant places in Iowa.

8.7 Summer - 4.8 Winter

June, September and August are the most pleasant months in the 51040 zip code, while January and December are the least comfortable months.

Climate	Onawa, Iowa	United States
	Unlock	38.1 in.
	26.2 in.	Unlock
	Unlock	106.2 days
	208 days	Unlock
	86.4°	85.8°
	Unlock	21.7°
	7.1	Unlock
	Unlock	4.3
	1047 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 51040 zip code with an average high temperature of 86.4°, which ranks it as one of the hottest places in Iowa. In the 51040 zip code, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the 51040 zip code are September, May and June.

In the 51040 zip code, there are 22.6 days annually when the high temperature is over 90°, which is one of the hottest places in Iowa.

January has the coldest nighttime temperatures for the 51040 zip code with an average of 9.5°. This is about average compared to other places in Iowa.

In the 51040 zip code, there are 156.0 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Iowa.

In the 51040 zip code, there are 18.6 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Iowa.

The humidity is usually comfortable in the 51040 zip code but some summer months can be sticky or muggy. July is the most humid month, though humidity is low for most of the year. The most humid months are July, August and June.

June is the wettest month in the 51040 zip code with 4.8 inches of rain, and the driest month is January with 0.7 inches. The wettest season is Autumn with 39% of yearly precipitation and 8% occurs in Spring, which is the driest season. The annual rainfall of 31.8 inches in the 51040 zip code means that it is drier than most places in Iowa.

May is the rainiest month in the 51040 zip code with 9.6 days of rain, and January is the driest month with only 3.9 rainy days. There are 79.7 rainy days annually in the 51040 zip code, which is one of the least rainy places in Iowa. The rainiest season is Autumn when it rains 31% of the time and the driest is Spring with only a 16% chance of a rainy day.

An annual snowfall of 26.2 inches in the 51040 zip code means that it is less snowy than most places in Iowa. December is the snowiest month in the 51040 zip code with 6.7 inches of snow, and 6 months of the year have significant snowfall.

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