St. Joseph, IA Climate


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United States / Iowa / No Metro Area / Kossuth County / St. Joseph / Zip Codes
St. Joseph, IA experiences a humid continental climate with warm summers and cold winters. The average annual temperature is around 11°C (51°F). Summers in St. Joseph can be hot and humid with temperatures reaching up to 32°C (90°F). Winters are relatively cold with temperatures dropping down to -3°C (26°F). Rainfall is distributed throughout the year, peaking in late spring and early summer. Snowfall occurs annually, typically accumulating to around 48 centimetres (19 inches).

St. Joseph, Iowa gets 34 inches of rain, on average, per year. The US average is 38 inches of rain per year.

St. Joseph averages 37 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 194 sunny days per year in St. Joseph. The US average is 205 sunny days.

St. Joseph 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 8
Rain: averages 34 inches of rain a year
Snow: averages 37 inches of snow a year

Bestplaces Comfort Index

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

9 Summer - 4.2 Winter
June, August and September are the most pleasant months in St. Joseph, while January and December are the least comfortable months.

  ClimateSt. Joseph, IowaUnited States
  33.7 in.38.1 in.
  37.0 in.27.8 in.
  97.6 days106.2 days
  194 days205 days
  82.6°85.8°
  7.8°21.7°
  6.87
  44.3
  1102 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. Joseph with an average high temperature of 82.6°, which ranks it as cooler than most places in Iowa. In St. Joseph, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for St. Joseph are June, August and September.
In St. Joseph, there are 8.8 days annually when the high temperature is over 90°, which is cooler than most places in Iowa.
January has the coldest nighttime temperatures for St. Joseph with an average of 7.8°. This is colder than most places in Iowa.
In St. Joseph, there are 153.9 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Iowa.
In St. Joseph, there are 22.5 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Iowa.
The humidity is usually comfortable in St. Joseph 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. Joseph with 5.2 inches of rain, and the driest month is January with 0.8 inches. The wettest season is Autumn with 41% of yearly precipitation and 9% occurs in Spring, which is the driest season. The annual rainfall of 33.7 inches in St. Joseph means that it is drier than most places in Iowa.
May is the rainiest month in St. Joseph with 12.2 days of rain, and February is the driest month with only 4.6 rainy days. There are 97.6 rainy days annually in St. Joseph, which is about average compared to other places in Iowa. The rainiest season is Autumn when it rains 30% of the time and the driest is Spring with only a 17% chance of a rainy day.
An annual snowfall of 37.0 inches in St. Joseph means that it is one of the snowiest places in Iowa. December is the snowiest month in St. Joseph with 8.9 inches of snow, and 6 months of the year have significant snowfall.
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