Grundy County, Iowa 

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United States / Iowa / / Grundy County / Cities / Zip Codes

Climate in Grundy County, Iowa

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

Grundy County averages 33 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 191 sunny days per year in Grundy County. The US average is 205 sunny days.

Grundy County gets some kind of precipitation, on average, 98 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 83 degrees
Winter Low: the January low is 9
Rain: averages 36 inches of rain a year
Snow: averages 33 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for Grundy County is 6.8 (10=best), which means it is about average compared to other places in Iowa.

6.8 / 10
June, September and August are the most pleasant months in Grundy County, while January and December are the least comfortable months.

Climate Averages
  Grundy, IowaUnited States
  35.7 in.38.1 in.
  33.0 in.27.8 in.
  98.4 days106.2 days
  191 days205 days
  83.4°85.8°
  8.9°21.7°
  6.87
  3.74.3
  1034 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 Grundy County with an average high temperature of 83.4°, which ranks it as cooler than most places in Iowa. In Grundy County, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Grundy County are June, August and September.


January has the coldest nighttime temperatures for Grundy County with an average of 8.9°. This is colder than most places in Iowa.


In Grundy County, there are 10.2 days annually when the high temperature is over 90°, which is cooler than most places in Iowa.


In Grundy County, there are 151.0 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Iowa.


In Grundy County, there are 20.4 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Iowa.


June is the wettest month in Grundy County 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 35.7 inches in Grundy County means that it is about average compared to other places in Iowa.


May is the rainiest month in Grundy County with 11.7 days of rain, and February is the driest month with only 5.4 rainy days. There are 98.4 rainy days annually in Grundy County, which is about average compared to other places in Iowa. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 18% chance of a rainy day.


An annual snowfall of 33.0 inches in Grundy County means that it is snowier than most places in Iowa. December is the snowiest month in Grundy County with 8.5 inches of snow, and 6 months of the year have significant snowfall.





CLIMATE MAP
  • Annual Rainfall (US Avg: 36.5")
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    MAPS OF GRUNDY COUNTY, IOWA
    ZIP CODES IN GRUNDY COUNTY, IOWA
    50638 50669 50624 50621 50680 50642 50609 50673

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