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Monthly climate in Kootenai, Idaho, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Kootenai features a humid continental climate (Dsb).Temperatures typically range between -2 °C (29 °F) and 22 °C (71 °F) through the year, but rarely can drop to -18 °C (0 °F) or can rise to as high as 41 °C (106 °F).The average annual precipitation amounts to about 977 mm (38.5 inches) and receives 141 rainy days on the 1 mm (0.04 inches) threshold annually.Kootenai enjoys an average of 2802 hours of sunshine throughout the year, and daylight varies from 8 hours 23 minutes to 16 hours 0 minutes per day.

Monthly average temperatures in Kootenai, Idaho, United States §

The warmest months in Kootenai are July, August and September, with daily mean temperatures ranging from 16 to 22 °C (61 - 71 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -2 to 1 °C (29 - 33 °F) throughout the day. On average each year, Kootenai experiences 46 days above 25 °C (77.0 °F) and 89 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Kootenai, 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 8°C
(46°F)		 12°C
(54°F)		 17°C
(63°F)		 25°C
(78°F)		 30°C
(86°F)		 41°C
(106°F)		 40°C
(105°F)		 37°C
(100°F)		 32°C
(90°F)		 25°C
(77°F)		 14°C
(57°F)		 13°C
(56°F)
Mean maximum 6°C
(43°F)		 8°C
(47°F)		 13°C
(55°F)		 18°C
(66°F)		 26°C
(79°F)		 29°C
(84°F)		 34°C
(94°F)		 35°C
(95°F)		 29°C
(85°F)		 19°C
(67°F)		 12°C
(54°F)		 8°C
(47°F)
Average high 1°C
(35°F)		 1°C
(34°F)		 6°C
(43°F)		 10°C
(50°F)		 16°C
(62°F)		 21°C
(70°F)		 26°C
(80°F)		 27°C
(80°F)		 20°C
(69°F)		 12°C
(54°F)		 6°C
(43°F)		 2°C
(37°F)
Daily mean -0°C
(32°F)		 -2°C
(29°F)		 2°C
(36°F)		 6°C
(43°F)		 11°C
(53°F)		 16°C
(60°F)		 21°C
(70°F)		 22°C
(71°F)		 16°C
(61°F)		 9°C
(48°F)		 4°C
(39°F)		 1°C
(33°F)
Average low -2°C
(29°F)		 -5°C
(24°F)		 -1°C
(30°F)		 2°C
(36°F)		 7°C
(45°F)		 10°C
(51°F)		 15°C
(59°F)		 16°C
(62°F)		 12°C
(54°F)		 6°C
(42°F)		 2°C
(35°F)		 -1°C
(30°F)
Mean minimum -10°C
(15°F)		 -14°C
(7°F)		 -9°C
(15°F)		 -3°C
(27°F)		 2°C
(36°F)		 7°C
(44°F)		 10°C
(51°F)		 11°C
(53°F)		 5°C
(42°F)		 -2°C
(29°F)		 -4°C
(25°F)		 -7°C
(20°F)
Minimum -13°C
(9°F)		 -18°C
(1°F)		 -18°C
(0°F)		 -5°C
(24°F)		 1°C
(33°F)		 5°C
(42°F)		 9°C
(49°F)		 11°C
(51°F)		 2°C
(36°F)		 -8°C
(17°F)		 -8°C
(18°F)		 -12°C
(11°F)

Compare climate in Kootenai with other places

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

Monthly average precipitation in Kootenai, Idaho, United States §

Kootenai usually has the most precipitation in January, November and December, with an average of 17 rainy days and 132 mm (5.2 inches) of precipitation per month.The driest months in Kootenai are June, July and August. On average, 24 mm (0.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Kootenai, 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) 118 (4.6) 115 (4.5) 89 (3.5) 83 (3.3) 59 (2.3) 36 (1.4) 8 (0.3) 27 (1.1) 58 (2.3) 106 (4.2) 132 (5.2) 145 (5.7)
Average precipitation days (≥ 1 mm) 15 16 15 15 9 8 2 4 7 12 18 20

Monthly sunshine hours in Kootenai, Idaho, United States §

The sunniest months in Kootenai are June, July and August, when the sun shines an average of 12 hours 10 minutes a day.Least sunny months in Kootenai: January, November and December receive an average of 3 hours 2 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Kootenai, 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 79 132 202 252 325 353 412 353 274 214 112 88
Mean daily daylight hours 8h 50m 10h 13m 11h 57m 13h 43m 15h 14m 16h 0m 15h 34m 14h 12m 12h 30m 10h 45m 9h 11m 8h 23m

Solar UV radiation in Kootenai, Idaho, United States §

Kootenai experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 9 - 9, which corresponds to the Very High 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 3. For more detailed information, check out our hourly Kootenai UV Index data.

Average daily maximum UV levels by month for Kootenai, 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) 2 4 6 7 8 9 9 9 7 4 3 2