St. Francis, SD Climate


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United States / South Dakota / No Metro Area / Todd County / St. Francis / Zip Codes
St. Francis, SD has a semi-arid climate with hot, dry summers and cold winters. Average summer temperatures range from 65 to 85 degrees Fahrenheit, while winter temperatures vary from 0 to 35 degrees Fahrenheit. Precipitation is relatively low throughout the year, but snowfall can be quite heavy in the winter months. The town also experiences strong winds throughout the year due to its location on the prairies of South Dakota. During the spring and summer months, thunderstorms are common in the area as well.

St. Francis, South Dakota gets 21 inches of rain, on average, per year. The US average is 38 inches of rain per year.

St. Francis averages 42 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 225 sunny days per year in St. Francis. The US average is 205 sunny days.

St. Francis gets some kind of precipitation, on average, 81 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 87 degrees
Winter Low: the January low is 12
Rain: averages 21 inches of rain a year
Snow: averages 42 inches of snow a year


Bestplaces Comfort Index

The annual BestPlaces Comfort Index for St. Francis is 7.0 (10=best), which means it is one of the most pleasant places in South Dakota.

9 Summer - 5.1 Winter
June, September and August are the most pleasant months in St. Francis, while January and February are the least comfortable months.

  ClimateSt. Francis, South DakotaUnited States
  21.1 in.38.1 in.
  42.1 in.27.8 in.
  81.1 days106.2 days
  225 days205 days
  87.3°85.8°
  12.0°21.7°
  77
  3.64.3
  2989 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. Francis with an average high temperature of 87.3°, which ranks it as warmer than most places in South Dakota. In St. Francis, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for St. Francis are September, June and May.
In St. Francis, there are 32.1 days annually when the high temperature is over 90°, which is hotter than most places in South Dakota.
January has the coldest nighttime temperatures for St. Francis with an average of 12.0°. This is one of the warmest places in South Dakota.
In St. Francis, there are 167.5 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in South Dakota.
In St. Francis, there are 17.2 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in South Dakota.
Humidity in St. Francis is generally quite low and comfortable. There are few days during the summer when the humidity becomes unpleasant. The most humid months (but still comfortable) are July, August and June.
June is the wettest month in St. Francis with 3.5 inches of rain, and the driest month is January with 0.5 inches. The wettest season is Autumn with 40% of yearly precipitation and 8% occurs in Spring, which is the driest season. The annual rainfall of 21.1 inches in St. Francis means that it is drier than most places in South Dakota.
June is the rainiest month in St. Francis with 10.5 days of rain, and January is the driest month with only 4.1 rainy days. There are 81.1 rainy days annually in St. Francis, which is about average compared to other places in South Dakota. The rainiest season is Autumn when it rains 32% of the time and the driest is Spring with only a 16% chance of a rainy day.
An annual snowfall of 42.1 inches in St. Francis means that it is snowier than most places in South Dakota. March is the snowiest month in St. Francis with 8.6 inches of snow, and 7 months of the year have significant snowfall.
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