Mountain Home, ID Climate

Summary Graph

The summary climate graph for Mountain Home, ID shows a selection of temperature, rainfall and snow minimum, mean and maximum measures over the course of a year. Click on each of the measures in the key to toggle them on and off.

Graph of average and extreme temperature ranges by day for Mountain Home, ID.


The warmest month in Mountain Home Air Force Base, Mountain Home, Idaho is July with an average high temperature of 93.6°F. The hottest day on record was July 22 2006 when the temperature hit 111.2°F. During January the overnight temperature drops to an average of 23.1°F with the lowest temperature of -35.5°F being recorded on February 9 1933.

Warmest Days

Warmest Months

Coldest Days

Coldest Months

The warmest days on record are:

22 Jul 2006111.2°F
20 Jul 1989109.9°F
18 Jul 1998109.4°F
20 Jul 1960109°F
6 Aug 1983109°F

The warmest months on average were:

July 200699.3°F
July 198999.2°F
July 196098.7°F
July 201298.3°F
July 198898.2°F

The coldest days on record are:

9 Feb 1933-35.5°F
22 Jan 1962-22°F
22 Dec 1990-21.8°F
11 Dec 1972-21.6°F
12 Dec 1932-17.5°F

The coldest months on average were:

December 19326.7°F
December 19857.2°F
February 19337.4°F
December 199012°F
January 197912.5°F


The wettest month by average rainfall in Mountain Home, ID is December with an average of 0.6 inches of rain falling on 7 to 8 days.Although in May it typically rains on more days with 0.5 inches falling in 9 to 10 days. The driest month in Mountain Home, ID is August with an average of 0.1 inches of rain falling on 4 to 5 days.

Wettest Days

The wettest days on record are:

20 May 19811 inches
29 May 19900.9 inches
23 May 20100.9 inches
9 May 20050.9 inches
27 May 19980.7 inches

Wettest Months

The wettest months on record are:

December 20104.2 inches
May 20053.6 inches
December 19833.5 inches
March 19933.2 inches
March 19833 inches

Driest Months

The driest months on record are:

February 19320 inches
March 19320 inches
April 19320 inches
May 19320 inches
June 19320 inches