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Monthly climate in Mountain Home, Idaho, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Mountain Home features a hot-summer Mediterranean climate (Csa).Temperatures typically range between -1 °C (31 °F) and 26 °C (79 °F) through the year, but rarely can drop to -21 °C (-6 °F) or can rise to as high as 41 °C (105 °F).The average annual precipitation amounts to about 397 mm (15.6 inches) and receives 78 rainy days on the 1 mm (0.04 inches) threshold annually.Mountain Home enjoys an average of 3319 hours of sunshine throughout the year, and daylight varies from 9 hours 1 minutes to 15 hours 18 minutes per day.

Monthly average temperatures in Mountain Home, Idaho, United States §

The warmest months in Mountain Home are June, July and August, with daily mean temperatures ranging from 20 to 26 °C (68 - 79 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -1 to 1 °C (31 - 34 °F) throughout the day. On average each year, Mountain Home experiences 91 days above 25 °C (77.0 °F) and 102 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Mountain Home, Idaho, United States.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 11°C
(53°F)		 15°C
(59°F)		 22°C
(73°F)		 30°C
(86°F)		 34°C
(94°F)		 39°C
(102°F)		 39°C
(103°F)		 41°C
(105°F)		 38°C
(100°F)		 29°C
(85°F)		 22°C
(71°F)		 13°C
(56°F)
Mean maximum 8°C
(47°F)		 13°C
(55°F)		 20°C
(68°F)		 26°C
(80°F)		 31°C
(88°F)		 31°C
(89°F)		 38°C
(101°F)		 39°C
(102°F)		 36°C
(97°F)		 25°C
(78°F)		 17°C
(64°F)		 10°C
(50°F)
Average high 3°C
(37°F)		 5°C
(41°F)		 11°C
(53°F)		 16°C
(60°F)		 21°C
(70°F)		 27°C
(80°F)		 33°C
(92°F)		 32°C
(90°F)		 26°C
(79°F)		 16°C
(62°F)		 10°C
(49°F)		 3°C
(38°F)
Daily mean -1°C
(31°F)		 1°C
(34°F)		 6°C
(43°F)		 9°C
(49°F)		 14°C
(58°F)		 20°C
(68°F)		 26°C
(79°F)		 24°C
(76°F)		 18°C
(66°F)		 10°C
(50°F)		 4°C
(40°F)		 -1°C
(31°F)
Average low -4°C
(25°F)		 -3°C
(27°F)		 1°C
(34°F)		 3°C
(39°F)		 8°C
(46°F)		 12°C
(55°F)		 17°C
(63°F)		 16°C
(62°F)		 11°C
(52°F)		 4°C
(40°F)		 -0°C
(32°F)		 -4°C
(24°F)
Mean minimum -13°C
(9°F)		 -11°C
(13°F)		 -7°C
(20°F)		 -4°C
(26°F)		 1°C
(33°F)		 6°C
(42°F)		 12°C
(53°F)		 10°C
(50°F)		 4°C
(39°F)		 -4°C
(25°F)		 -7°C
(20°F)		 -12°C
(11°F)
Minimum -21°C
(-6°F)		 -15°C
(5°F)		 -10°C
(14°F)		 -6°C
(22°F)		 -2°C
(28°F)		 4°C
(39°F)		 9°C
(48°F)		 7°C
(44°F)		 3°C
(37°F)		 -12°C
(11°F)		 -9°C
(16°F)		 -15°C
(5°F)

Compare climate in Mountain Home with other places

Compare temperature, precipitation, sunshine, UV index in Mountain Home, Idaho, United States with other places around the world.

Monthly average precipitation in Mountain Home, Idaho, United States §

Mountain Home usually has the most precipitation in January, February and December, with an average of 11 rainy days and 53 mm (2.1 inches) of precipitation per month.The driest months in Mountain Home are July, August and September. On average, 8 mm (0.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Mountain Home, Idaho, United States.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 56 (2.2) 59 (2.3) 43 (1.7) 38 (1.5) 41 (1.6) 22 (0.9) 3 (0.1) 10 (0.4) 12 (0.5) 27 (1.1) 41 (1.6) 45 (1.8)
Average precipitation days (≥ 1 mm) 10 13 10 9 8 3 0 1 2 4 8 10

Monthly sunshine hours in Mountain Home, Idaho, United States §

The sunniest months in Mountain Home are June, July and August, when the sun shines an average of 12 hours 22 minutes a day.Least sunny months in Mountain Home: January, February and December receive an average of 5 hours 26 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Mountain Home, Idaho, United States.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 139 182 267 295 345 376 400 361 308 262 206 172
Mean daily daylight hours 9h 23m 10h 32m 11h 58m 13h 26m 14h 41m 15h 18m 14h 57m 13h 50m 12h 26m 10h 58m 9h 41m 9h 1m

Solar UV radiation in Mountain Home, Idaho, United States §

Mountain Home experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme category of sun exposure.January, November and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Mountain Home UV Index data.

Average daily maximum UV levels by month for Mountain Home, Idaho, United States.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 3 5 7 8 10 11 11 10 8 6 4 2