Jefferson County, Idaho 

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Weather in Jefferson County, Idaho

The most pleasant months of the year for Jefferson County are June, September and August. In Jefferson County, there are 2 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Jefferson County with an average high temperature of 85.8°, which ranks it as about average compared to other places in Idaho. December is the snowiest month in Jefferson County with 10.6 inches of snow, and 7 months of the year have significant snowfall. Days with noticeable humidity are rare throughout the year.


Today's Weather - Jefferson, ID

11 PM PST

Patchy Frost

42°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
OvernightPatchy Frost34° / 58°W 10 mph
Monday NightMostly Clear then Widespread Frost29° / 65°SSE 8 mph
Tuesday NightMostly Clear then Areas Of Frost34° / 73°E 8 mph
Wednesday NightPartly Cloudy38° / 73°S 6 to 12 mph
Thursday NightMostly Clear37° / 74°SE 6 to 9 mph
Friday NightMostly Clear39° / 76°SE 6 to 9 mph
Saturday NightMostly Clear42° / 77°SSE 6 to 10 mph

Weather Highlights

Summer High: the July high is around 86 degrees
Winter Low: the January low is 11
Rain: averages 12 inches of rain a year
Snow: averages 37 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Jefferson County area is 6.7 (10=best), which means it is more comfortable than most places in Idaho.

6.7 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January29° 11°
February34° 14°
March47° 25°
April59° 32°
May67° 39°
June76° 46°
July86° 51°
August86° 50°
September75° 41°
October60° 32°
November42° 22°
December30° 12°
Hot, Freezing, Rainy, Snowy Days: Jefferson
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January03096
February02775
March02672
April01581
May0490
June1070
July8050
August8050
September1340
October01661
November02784
December03097

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.


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MAPS OF JEFFERSON COUNTY, IDAHO
ZIP CODES IN JEFFERSON COUNTY, IDAHO
83442 83434 83444 83450 83443 83431 83435 83425


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