Rochester, IA Climate


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United States / Iowa / No Metro Area / Cedar County / Rochester / Zip Codes
Rochester, IA enjoys a typical midwestern climate with warm summers and cold winters. The average temperature in summer is around 80 degrees Fahrenheit while the average winter temperature is around 20 degrees Fahrenheit. Precipitation in Rochester averages 36 inches of rain per year, with snowfall reaching an average of about 30 inches per year. The town experiences four distinct seasons, giving residents plenty of opportunities for outdoor activities throughout the year.

Rochester, Iowa gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Rochester averages 29 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 197 sunny days per year in Rochester. The US average is 205 sunny days.

Rochester gets some kind of precipitation, on average, 108 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 84 degrees
Winter Low: the January low is 12
Rain: averages 37 inches of rain a year
Snow: averages 29 inches of snow a year


Bestplaces Comfort Index

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

8.8 Summer - 4.5 Winter
June, September and August are the most pleasant months in Rochester, while January and December are the least comfortable months.

  ClimateRochester, IowaUnited States
  36.7 in.38.1 in.
  28.7 in.27.8 in.
  108.4 days106.2 days
  197 days205 days
  84.4°85.8°
  12.1°21.7°
  6.97
  44.3
  663 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 Rochester with an average high temperature of 84.4°, which ranks it as about average compared to other places in Iowa. In Rochester, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Rochester are September, June and August.
In Rochester, there are 11.3 days annually when the high temperature is over 90°, which is cooler than most places in Iowa.
January has the coldest nighttime temperatures for Rochester with an average of 12.1°. This is warmer than most places in Iowa.
In Rochester, there are 137.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Iowa.
In Rochester, there are 12.4 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Iowa.
The humidity is usually comfortable in Rochester 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.
August is the wettest month in Rochester with 4.5 inches of rain, and the driest month is January with 1.3 inches. The wettest season is Autumn with 36% of yearly precipitation and 13% occurs in Spring, which is the driest season. The annual rainfall of 36.7 inches in Rochester means that it is wetter than most places in Iowa.
May is the rainiest month in Rochester with 11.7 days of rain, and February is the driest month with only 7.3 rainy days. There are 108.4 rainy days annually in Rochester, which is rainier than most places in Iowa. The rainiest season is Summer when it rains 28% of the time and the driest is Spring with only a 21% chance of a rainy day.
An annual snowfall of 28.7 inches in Rochester means that it is less snowy than most places in Iowa. December is the snowiest month in Rochester with 8.0 inches of snow, and 6 months of the year have significant snowfall.
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