Zip 51577 (Walnut, IA) Climate

51577 Walnut, IA has a humid continental climate with cold and snowy winters, and hot and humid summers. The average temperature for the year is 48 degrees Fahrenheit, with temperatures ranging from a low of 14 in winter to a high of 81 in summer. Winters are usually wetter than summers, although both seasons tend to have regular precipitation. During winter months, snowfall can be significant, often reaching up to 20 inches each season. Summers are relatively dry but can be quite muggy and humid due to the location's proximity to bodies of water like the Mississippi River.

Walnut (zip 51577), Iowa gets 35 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Walnut (zip 51577) averages 29 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 215 sunny days per year in Walnut (zip 51577). The US average is 205 sunny days.

Walnut (zip 51577) gets some kind of precipitation, on average, 99 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 35 inches of rain a year
Snow: averages 29 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 51577 zip code is 7.0 (10=best), which means it is more comfortable than most places in Iowa.

8.8 Summer - 4.8 Winter

June, September and August are the most pleasant months in the 51577 zip code, while January and December are the least comfortable months.

Climate	Walnut, Iowa	United States
	35.2 in.	38.1 in.
	28.5 in.	27.8 in.
	98.6 days	106.2 days
	215 days	205 days
	84.8°	85.8°
	10.6°	21.7°
	7	7
	3.8	4.3
	1316 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 the 51577 zip code with an average high temperature of 84.8°, which ranks it as warmer than most places in Iowa. In the 51577 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 51577 zip code are September, June and August.

In the 51577 zip code, there are 15.6 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 51577 zip code with an average of 10.6°. This is warmer than most places in Iowa.

In the 51577 zip code, there are 151.5 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Iowa.

In the 51577 zip code, there are 16.9 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 51577 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 51577 zip code are July, August and June.

June is the wettest month in the 51577 zip code with 5.3 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 35.2 inches in the 51577 zip code means that it is drier than most places in Iowa.

May is the rainiest month in the 51577 zip code with 12.3 days of rain, and January is the driest month with only 5.3 rainy days. There are 98.6 rainy days annually in the 51577 zip code, which is about average compared to other places in Iowa. The rainiest season is Summer when it rains 31% of the time and the driest is Spring with only a 18% chance of a rainy day.

An annual snowfall of 28.5 inches in the 51577 zip code means that it is less snowy than most places in Iowa. December is the snowiest month in the 51577 zip code with 7.0 inches of snow, and 7 months of the year have significant snowfall.

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