St. Donatus, IA Climate


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United States / Iowa / No Metro Area / Jackson County / St. Donatus / Zip Codes
St. Donatus, IA has a humid continental climate, with hot summers and cold winters. The average high in the summer is 80°F (27°C) and the average low in the winter is 15°F (-9°C). Precipitation levels are moderate throughout the year, with an average of 37 inches of rainfall annually. Snowfall can vary, but is usually around 27 inches during the winter months. The area has an average of 32 days of sunshine each year.

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

St. Donatus averages 32 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 189 sunny days per year in St. Donatus. The US average is 205 sunny days.

St. Donatus gets some kind of precipitation, on average, 111 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 10
Rain: averages 37 inches of rain a year
Snow: averages 32 inches of snow a year


Bestplaces Comfort Index

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

9 Summer - 4.3 Winter
June, August and September are the most pleasant months in St. Donatus, while January and December are the least comfortable months.

  ClimateSt. Donatus, IowaUnited States
  36.5 in.38.1 in.
  32.2 in.27.8 in.
  111.1 days106.2 days
  189 days205 days
  83.7°85.8°
  9.9°21.7°
  6.87
  44.3
  666 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 St. Donatus with an average high temperature of 83.7°, which ranks it as cooler than most places in Iowa. In St. Donatus, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for St. Donatus are June, September and August.
In St. Donatus, there are 12.1 days annually when the high temperature is over 90°, which is about average compared to other places in Iowa.
January has the coldest nighttime temperatures for St. Donatus with an average of 9.9°. This is about average compared to other places in Iowa.
In St. Donatus, there are 150.0 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Iowa.
In St. Donatus, there are 18.2 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 St. Donatus 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 St. Donatus with 5.0 inches of rain, and the driest month is January with 1.2 inches. The wettest season is Autumn with 36% of yearly precipitation and 12% occurs in Spring, which is the driest season. The annual rainfall of 36.5 inches in St. Donatus means that it is wetter than most places in Iowa.
May is the rainiest month in St. Donatus with 11.7 days of rain, and February is the driest month with only 7.2 rainy days. There are 111.1 rainy days annually in St. Donatus, which is one of the rainiest places in Iowa. The rainiest season is Summer when it rains 28% of the time and the driest is Spring with only a 22% chance of a rainy day.
An annual snowfall of 32.2 inches in St. Donatus means that it is snowier than most places in Iowa. December is the snowiest month in St. Donatus with 9.5 inches of snow, and 6 months of the year have significant snowfall.
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