Harmon, SD Climate


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United States / South Dakota / No Metro Area / Roberts County / Harmon / Zip Codes
Harmon, SD has a continental climate characterized by warm summers and cold winters. The average summer temperature is around 75 degrees Fahrenheit and the average winter temperature is around 10 degrees Fahrenheit. The town also typically sees precipitation throughout the year, with most of it in the form of snowfall during the winter months. Harmon also experiences windy conditions all year round, though it tends to be milder in summer than winter months. Overall, Harmon's climate can be described as cold and unpredictable but still comfortable for those who enjoy outdoor activities throughout the year.

Harmon, South Dakota gets 25 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Harmon averages 45 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 200 sunny days per year in Harmon. The US average is 205 sunny days.

Harmon gets some kind of precipitation, on average, 79 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 82 degrees
Winter Low: the January low is 1
Rain: averages 25 inches of rain a year
Snow: averages 45 inches of snow a year


Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Harmon is 6.6 (10=best), which means it is less comfortable than most places in South Dakota.

9.3 Summer - 3.9 Winter
August, July and June are the most pleasant months in Harmon, while January and December are the least comfortable months.

  ClimateHarmon, South DakotaUnited States
  24.5 in.38.1 in.
  45.4 in.27.8 in.
  79.4 days106.2 days
  200 days205 days
  82.3°85.8°
  0.9°21.7°
  6.67
  34.3
  1097 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 Harmon with an average high temperature of 82.3°, which ranks it as cooler than most places in South Dakota. In Harmon, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Harmon are June, August and July.
In Harmon, there are 9.4 days annually when the high temperature is over 90°, which is cooler than most places in South Dakota.
January has the coldest nighttime temperatures for Harmon with an average of 0.9°. This is one of the coldest places in South Dakota.
In Harmon, there are 173.0 days annually when the nighttime low temperature falls below freezing, which is colder than most places in South Dakota.
In Harmon, there are 39.8 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in South Dakota.
Humidity in Harmon is generally low and comfortable. But there some days when the humidity becomes unpleasant, especially in July and August. The most humid months (but still comfortable) are July, August and June.
June is the wettest month in Harmon with 3.9 inches of rain, and the driest month is February with 0.6 inches. The wettest season is Autumn with 41% of yearly precipitation and 8% occurs in Spring, which is the driest season. The annual rainfall of 24.5 inches in Harmon means that it is wetter than most places in South Dakota.
June is the rainiest month in Harmon with 9.7 days of rain, and February is the driest month with only 4.2 rainy days. There are 79.4 rainy days annually in Harmon, which is less rainy than most places in South Dakota. The rainiest season is Autumn when it rains 33% of the time and the driest is Spring with only a 17% chance of a rainy day.
An annual snowfall of 45.4 inches in Harmon means that it is one of the snowiest places in South Dakota. January is the snowiest month in Harmon with 8.9 inches of snow, and 7 months of the year have significant snowfall.
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