Ketchum, ID Climate


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United States / Idaho / Hailey Metro Area / Blaine County / Ketchum / Zip Codes
Ketchum, ID enjoys a temperate climate year-round. Summers are dry and warm with average highs of 83 degrees Fahrenheit, while winters are cold but sunny, averaging highs of 34 degrees Fahrenheit during the coldest months. The area receives very little rainfall throughout the year, with just over 10 inches annually. The area is also known for its low humidity levels, making it a comfortable place to be all year long.

Ketchum, Idaho gets 14 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Ketchum averages 102 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 204 sunny days per year in Ketchum. The US average is 205 sunny days.

Ketchum gets some kind of precipitation, on average, 78 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 8
Rain: averages 14 inches of rain a year
Snow: averages 102 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Ketchum is 6.3 (10=best), which means it is less comfortable than most places in Idaho.

8.8 Summer - 3.6 Winter
July, August and September are the most pleasant months in Ketchum, while December and January are the least comfortable months.

  ClimateKetchum, IdahoUnited States
  13.8 in.38.1 in.
  101.6 in.27.8 in.
  77.5 days106.2 days
  204 days205 days
  81.8°85.8°
  7.6°21.7°
  6.37
  4.14.3
  5853 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 Ketchum with an average high temperature of 81.8°, which ranks it as cooler than most places in Idaho. In Ketchum, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Ketchum are August, July and June.
In Ketchum, there are 4.9 days annually when the high temperature is over 90°, which is one of the coolest places in Idaho.
January has the coldest nighttime temperatures for Ketchum with an average of 7.6°. This is one of the coldest places in Idaho.
In Ketchum, there are 211.6 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Idaho.
In Ketchum, there are 21.1 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Idaho.
Humidity is very low in Ketchum, so low that the dry air may be uncomfortable for some people. There are few days during the year when the humidity is even noticable. A very dry climate can lead to cracked, itchy skin and dry eyes.
December is the wettest month in Ketchum with 1.8 inches of rain, and the driest month is August with 0.6 inches. The wettest season is Spring with 32% of yearly precipitation and 19% occurs in Autumn, which is the driest season. The annual rainfall of 13.8 inches in Ketchum means that it is about average compared to other places in Idaho.
May is the rainiest month in Ketchum with 8.3 days of rain, and September is the driest month with only 4.4 rainy days. There are 77.5 rainy days annually in Ketchum, which is less rainy than most places in Idaho. The rainiest season is Spring when it rains 29% of the time and the driest is Winter with only a 21% chance of a rainy day.
An annual snowfall of 101.6 inches in Ketchum means that it is one of the snowiest places in Idaho. December is the snowiest month in Ketchum with 28.3 inches of snow, and 8 months of the year have significant snowfall.
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James · Ketchum, ID
Mountain life
Over 9 years ago

Small town life with the mountains to enjoy all four seasons. Great restaurants and shopping available though knowing where to go helps in keeping the costs reasonable.   More

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