Keystone, SD Climate


Reviews



Download our custom City Report to see exclusive
data on cost of living, crime, climate, and more.

Overview
Cost of Living
Crime
Climate
Interactive Map
Jobs
Weather
Schools
Education
Economy
Health
Religion
People
Politics & Voting
Housing Stats
Commute Time
Rankings
Reviews
Upgrade to Premium
United States / South Dakota / Rapid City Metro Area / Pennington County / Keystone / Zip Codes
Keystone, SD has a temperate continental climate with large seasonal temperature variations. It is typically hot in the summer with temperatures reaching up to an average of 85°F and cold in the winter with temperatures dropping down to an average of 10°F. The precipitation in Keystone averages around 24 inches per year, which is spread out evenly throughout the year. Snowfall is also common, typically accumulating around 30 inches each winter season. Overall, whether you're looking for a pleasant summer day or a cozy winter night, Keystone provides a comfortable climate all year round.

Keystone, South Dakota gets 20 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Keystone averages 54 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 222 sunny days per year in Keystone. The US average is 205 sunny days.

Keystone gets some kind of precipitation, on average, 91 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 81 degrees
Winter Low: the January low is 12
Rain: averages 20 inches of rain a year
Snow: averages 54 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Keystone is 6.7 (10=best), which means it is less comfortable than most places in South Dakota.

8.9 Summer - 5.1 Winter
August, July and June are the most pleasant months in Keystone, while February and December are the least comfortable months.

  ClimateKeystone, South DakotaUnited States
  20.1 in.38.1 in.
  54.1 in.27.8 in.
  90.9 days106.2 days
  222 days205 days
  81.2°85.8°
  12.1°21.7°
  6.77
  4.64.3
  4331 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 Keystone with an average high temperature of 81.2°, which ranks it as one of the coolest places in South Dakota. In Keystone, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Keystone are August, July and June.
In Keystone, there are 9.3 days annually when the high temperature is over 90°, which is cooler than most places in South Dakota.
December has the coldest nighttime temperatures for Keystone with an average of 11.6°. This is warmer than most places in South Dakota.
In Keystone, there are 194.3 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in South Dakota.
In Keystone, there are 17.9 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in South Dakota.
Humidity in Keystone 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.
May is the wettest month in Keystone with 3.7 inches of rain, and the driest month is January with 0.3 inches. The wettest season is Autumn with 41% of yearly precipitation and 6% occurs in Spring, which is the driest season. The annual rainfall of 20.1 inches in Keystone means that it is drier than most places in South Dakota.
May is the rainiest month in Keystone with 11.6 days of rain, and November is the driest month with only 4.2 rainy days. There are 90.9 rainy days annually in Keystone, which is one of the rainiest places in South Dakota. The rainiest season is Autumn when it rains 34% of the time and the driest is Spring with only a 15% chance of a rainy day.
An annual snowfall of 54.1 inches in Keystone means that it is one of the snowiest places in South Dakota. April is the snowiest month in Keystone with 12.1 inches of snow, and 9 months of the year have significant snowfall.
Reviews for Keystone
    See all ()
Write a Review

Start Your Review of Keystone

Jobs
Compare Keystone,
cost of living
Compare food, housing, utilities, and more in Keystone, South Dakota to any other city in the US.


Privacy Policy  •  Terms of Use  •  Returns & Refunds
© Best Places. All rights reserved.