Twin Falls, ID Climate


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United States / Idaho / Twin Falls Metro Area / Twin Falls County / Twin Falls / Zip Codes
Twin Falls, Idaho has a semi-arid climate with hot summers and cold winters. During the summer months, temperatures can reach up to 90 degrees Fahrenheit, while in winter temperatures can dip as low as 20 degrees Fahrenheit. Rainfall is scarce in this area, but thunderstorms are common during the summertime. Winters are dry and usually sunny with light snowfall. The average annual snowfall is around 10 inches. Spring and fall months tend to be milder with higher humidity levels.

Twin Falls, Idaho gets 10 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Twin Falls averages 18 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 210 sunny days per year in Twin Falls. The US average is 205 sunny days.

Twin Falls 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 89 degrees
Winter Low: the January low is 20
Rain: averages 10 inches of rain a year
Snow: averages 18 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Twin Falls is 7.2 (10=best), which means it is one of the most pleasant places in Idaho.

8.7 Summer - 5.1 Winter
June, September and May are the most pleasant months in Twin Falls, while December and January are the least comfortable months.

  ClimateTwin Falls, IdahoUnited States
  10.4 in.38.1 in.
  18.2 in.27.8 in.
  78.5 days106.2 days
  210 days205 days
  89.3°85.8°
  20.3°21.7°
  7.27
  4.14.3
  3734 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 Twin Falls with an average high temperature of 89.3°, which ranks it as warmer than most places in Idaho. In Twin Falls, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Twin Falls are September, June and May.
In Twin Falls, there are 38.4 days annually when the high temperature is over 90°, which is hotter than most places in Idaho.
December has the coldest nighttime temperatures for Twin Falls with an average of 19.7°. This is about average compared to other places in Idaho.
In Twin Falls, there are 146.3 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Idaho.
In Twin Falls, there are 3.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Idaho.
Humidity is low in Twin Falls, and some people might find the dryness to be uncomfortable. Days with noticeable humidity are rare throughout the year. A very dry climate can lead to cracked, itchy skin and dry eyes.
December is the wettest month in Twin Falls with 1.4 inches of rain, and the driest month is July with 0.2 inches. The wettest season is Summer with 32% of yearly precipitation and 13% occurs in Autumn, which is the driest season. The annual rainfall of 10.4 inches in Twin Falls means that it is drier than most places in Idaho.
December is the rainiest month in Twin Falls with 9.5 days of rain, and July is the driest month with only 2.5 rainy days. There are 78.5 rainy days annually in Twin Falls, which is less rainy than most places in Idaho. The rainiest season is Spring when it rains 33% of the time and the driest is Autumn with only a 14% chance of a rainy day.
An annual snowfall of 18.2 inches in Twin Falls means that it is less snowy than most places in Idaho. December is the snowiest month in Twin Falls with 5.5 inches of snow, and 5 months of the year have significant snowfall.
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Paul · Twin Falls, ID
Magic Valley
Over 10 years ago

It is a hub community that is a gateway to the north of Sun Valley and to the south for Jackpot. New High School of 3 years to add to the established one. The hospital  More

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sue · Twin Falls, ID
Great Place to live
Over 11 years ago

Been living in Twin Falls for 2 plus years, like the people, very friendly. The Canyon is truly beautiful. Nice not to have to battle traffic, have places to walk to,  More

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Bp · Twin Falls, ID
A comfortable, safe place to raise children.
Over 12 years ago

In my 18 years here, Twin Falls has grown steadily, but all the schools, box stores, grocery stores are still within a 10-15 minute drive of each other. Traffic is a  More

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