Zip 51439 (Charter Oak, IA) Climate

The climate in 51439 Charter Oak, IA is typically mild with cold winters and hot summers. Temperatures in winter range from an average high of 28 degrees Fahrenheit to an average low of 12 degrees Fahrenheit. During the summer months, temperatures usually range from an average high of 83 degrees Fahrenheit to an average low of 57 degrees Fahrenheit. Precipitation in 51439 Charter Oak is typically spread evenly throughout the year with 28 inches on average annually. Humidity levels are generally moderate with some variation throughout the year.

Charter Oak (zip 51439), Iowa gets 31 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Charter Oak (zip 51439) averages 33 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 214 sunny days per year in Charter Oak (zip 51439). The US average is 205 sunny days.

Charter Oak (zip 51439) gets some kind of precipitation, on average, 88 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 10
Rain: averages 31 inches of rain a year
Snow: averages 33 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 51439 zip code is 6.9 (10=best), which means it is more comfortable than most places in Iowa.

8.8 Summer - 4.6 Winter

June, September and August are the most pleasant months in the 51439 zip code, while January and December are the least comfortable months.

Climate	Charter Oak, Iowa	United States
	Unlock	38.1 in.
	33.3 in.	Unlock
	Unlock	106.2 days
	214 days	Unlock
	84.7°	85.8°
	Unlock	21.7°
	6.9	Unlock
	Unlock	4.3
	1247 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 51439 zip code with an average high temperature of 84.7°, which ranks it as warmer than most places in Iowa. In the 51439 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 51439 zip code are September, June and August.

In the 51439 zip code, there are 14.7 days annually when the high temperature is over 90°, which is hotter than most places in Iowa.

January has the coldest nighttime temperatures for the 51439 zip code with an average of 10.1°. This is about average compared to other places in Iowa.

In the 51439 zip code, there are 152.1 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Iowa.

In the 51439 zip code, there are 18.5 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 51439 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 51439 zip code with 4.6 inches of rain, and the driest month is January with 0.7 inches. The wettest season is Autumn with 40% of yearly precipitation and 8% occurs in Spring, which is the driest season. The annual rainfall of 31.3 inches in the 51439 zip code means that it is drier than most places in Iowa.

May is the rainiest month in the 51439 zip code with 10.6 days of rain, and January is the driest month with only 4.5 rainy days. There are 88.0 rainy days annually in the 51439 zip code, which is one of the least rainy 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 33.3 inches in the 51439 zip code means that it is snowier than most places in Iowa. December is the snowiest month in the 51439 zip code with 8.4 inches of snow, and 7 months of the year have significant snowfall.

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