Zip 51247 (Rock Valley, IA) Climate

Rock Valley, IA has a humid continental climate with cold winters and hot summers. The average high temperature in the summer is around 81 degrees Fahrenheit and the average low temperature in the winter is about 17 degrees Fahrenheit. Precipitation levels tend to be higher than average in this area, with an annual total of around 33 inches of rain and snow combined . Snowfall is also above average, with approximately 41 inches of snow falling each year. The region experiences four distinct seasons during the year, making it an ideal location for those looking to enjoy all that nature has to offer.

Rock Valley (zip 51247), Iowa gets 28 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Rock Valley (zip 51247) averages 33 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 Rock Valley (zip 51247). The US average is 205 sunny days.

Rock Valley (zip 51247) gets some kind of precipitation, on average, 86 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 8
Rain: averages 28 inches of rain a year
Snow: averages 33 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 51247 zip code is 6.9 (10=best), which means it is more comfortable than most places in Iowa.

9 Summer - 4.5 Winter

June, August and September are the most pleasant months in the 51247 zip code, while January and December are the least comfortable months.

Climate	Rock Valley, Iowa	United States
	Unlock	38.1 in.
	32.8 in.	Unlock
	Unlock	106.2 days
	208 days	Unlock
	84.7°	85.8°
	Unlock	21.7°
	6.9	Unlock
	Unlock	4.3
	1272 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 51247 zip code with an average high temperature of 84.7°, which ranks it as warmer than most places in Iowa. In the 51247 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 51247 zip code are September, June and August.

In the 51247 zip code, there are 17.1 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 51247 zip code with an average of 7.7°. This is colder than most places in Iowa.

In the 51247 zip code, there are 157.2 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Iowa.

In the 51247 zip code, there are 23.5 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Iowa.

The humidity is usually comfortable in the 51247 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 51247 zip code with 4.3 inches of rain, and the driest month is January with 0.5 inches. The wettest season is Autumn with 41% of yearly precipitation and 7% occurs in Spring, which is the driest season. The annual rainfall of 28.1 inches in the 51247 zip code means that it is one of the driest places in Iowa.

May is the rainiest month in the 51247 zip code with 11.1 days of rain, and February is the driest month with only 4.0 rainy days. There are 85.9 rainy days annually in the 51247 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 15% chance of a rainy day.

An annual snowfall of 32.8 inches in the 51247 zip code means that it is snowier than most places in Iowa. December is the snowiest month in the 51247 zip code with 8.1 inches of snow, and 7 months of the year have significant snowfall.

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