30-year climate normals

Caribou County Climate and Weather Averages

Hottest month — July

86.8°

average daily high. The coldest month is December, averaging a low of 10.0°F.

Caribou County gets 15.72" of precipitation a year, and 33% of it falls in Mar, Apr, May.

Temperature through the year

Each bar spans the average daily low to the average daily high for that month.

Month	Avg high	Avg low	Precip
January	32.3°	10.1°	1.35"
February	35.1°	11.8°	1.35"
March	44.1°	19.2°	1.41"
April	55.3°	26.8°	1.38"
May	65.8°	34.4°	2.32"
June	76.0°	39.9°	1.24"
July	86.8°	45.3°	0.79"
August	85.4°	44.2°	1.06"
September	74.4°	35.7°	1.81"
October	59.8°	27.3°	1.05"
November	44.8°	19.3°	0.77"
December	33.3°	10.0°	1.19"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 33% falling in the wettest three months (Mar, Apr, May).

January 1.35"

February 1.35"

March 1.41"

April 1.38"

May 2.32"

June 1.24"

July 0.79"

August 1.06"

September 1.81"

October 1.05"

November 0.77"

December 1.19"

Annual total 15.72"

What this climate costs you

Degree days measure how hard a building has to work to stay comfortable. They are the reason two identical houses have very different power bills, and they are the link between the weather here and what you pay every month.

Cooling degree days How much air conditioning the climate demands 180

Heating degree days How much heating the climate demands 8,396

Approximate annual cooling cost At 12.35¢/kWh, Idaho average $22

Approximate annual electric heating cost Lower where heating is gas rather than electric $363

These are rough planning figures from degree days and the state electricity price, not a bill estimate. House size, insulation and fuel type move them a lot. See the full cost of owning a home in Caribou County, where electricity is one line of eight.

Common questions

What is the weather like in Caribou County?

Caribou County averages a high of 86.8°F in July and a low of 10.0°F in December. Annual precipitation is 15.72 inches, with essentially no snow.

When is the rainy season in Caribou County?

The wettest stretch is Mar, Apr, May, which accounts for 33% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Caribou County?

The average daily high in July, the hottest month, is 86.8°F. That drives 180 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Caribou County?

Effectively no. Measurable snowfall is rare in Caribou County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station SODA SPRINGS AP, ID US (USC00108535), 9.5 miles from the county centroid.
Heating and cooling degree days — NOAA, same station and period.
Electricity price — US Energy Information Administration, Electric Power Monthly Table 5.6.A, Idaho residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.