Polk City, IA Climate


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United States / Iowa / Des Moines-West Des Moines Metro Area / Polk County / Polk City / Zip Codes
Polk City, IA has a humid continental climate with warm summers and cold winters. The average high temperature in the summer months ranges from 81 to 86 degrees Fahrenheit while the average low temperatures range from 61 to 65 degrees Fahrenheit. In the winter months, the average high temperature is usually around 31 degrees Fahrenheit and the average low temperature is around 20 degrees Fahrenheit. Precipitation levels are relatively even throughout the year with an average of 32 inches annually. Despite being located in Iowa, Polk City experiences relatively mild weather compared to other parts of Iowa due to its location near the Des Moines River Valley.

Polk City, Iowa gets 36 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Polk City averages 31 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 198 sunny days per year in Polk City. The US average is 205 sunny days.

Polk City gets some kind of precipitation, on average, 107 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 36 inches of rain a year
Snow: averages 31 inches of snow a year

Bestplaces Comfort Index

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

8.7 Summer - 4.6 Winter
June, September and August are the most pleasant months in Polk City, while January and December are the least comfortable months.

  ClimatePolk City, IowaUnited States
  36.1 in.38.1 in.
  30.7 in.27.8 in.
  106.9 days106.2 days
  198 days205 days
  85.2°85.8°
  11.1°21.7°
  6.97
  44.3
  886 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 Polk City with an average high temperature of 85.2°, which ranks it as warmer than most places in Iowa. In Polk City, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Polk City are September, June and August.
In Polk City, there are 16.5 days annually when the high temperature is over 90°, which is hotter than most places in Iowa.
January has the coldest nighttime temperatures for Polk City with an average of 11.1°. This is warmer than most places in Iowa.
In Polk City, there are 142.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Iowa.
In Polk City, there are 15.6 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Iowa.
The humidity is usually comfortable in Polk City 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 Polk City with 5.2 inches of rain, and the driest month is January with 0.9 inches. The wettest season is Autumn with 40% of yearly precipitation and 9% occurs in Spring, which is the driest season. The annual rainfall of 36.1 inches in Polk City means that it is wetter than most places in Iowa.
May is the rainiest month in Polk City with 12.4 days of rain, and February is the driest month with only 6.6 rainy days. There are 106.9 rainy days annually in Polk City, which is rainier than most places in Iowa. The rainiest season is Summer when it rains 29% of the time and the driest is Spring with only a 19% chance of a rainy day.
An annual snowfall of 30.7 inches in Polk City means that it is about average compared to other places in Iowa. February is the snowiest month in Polk City with 7.5 inches of snow, and 6 months of the year have significant snowfall.
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