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Monthly climate in Palouse, Washington, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Palouse features a warm-summer Mediterranean climate (Csb).Temperatures typically range between 0 °C (32 °F) and 23 °C (73 °F) through the year, but rarely can drop to -20 °C (-5 °F) or can rise to as high as 42 °C (109 °F).The average annual precipitation amounts to about 757 mm (29.8 inches) and receives 121 rainy days on the 1 mm (0.04 inches) threshold annually.Palouse enjoys an average of 3015 hours of sunshine throughout the year, and daylight varies from 8 hours 34 minutes to 15 hours 48 minutes per day.

Monthly average temperatures in Palouse, Washington, United States §

The warmest months in Palouse are June, July and August, with daily mean temperatures ranging from 18 to 23 °C (64 - 73 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 0 to 0 °C (32 - 32 °F) throughout the day. On average each year, Palouse experiences 64 days above 25 °C (77.0 °F) and 93 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Palouse, Washington, 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
(52°F)		 15°C
(58°F)		 19°C
(66°F)		 28°C
(83°F)		 31°C
(89°F)		 42°C
(109°F)		 40°C
(104°F)		 39°C
(103°F)		 35°C
(94°F)		 27°C
(81°F)		 17°C
(62°F)		 16°C
(61°F)
Mean maximum 8°C
(46°F)		 11°C
(52°F)		 16°C
(61°F)		 22°C
(71°F)		 27°C
(82°F)		 31°C
(87°F)		 36°C
(97°F)		 37°C
(100°F)		 32°C
(90°F)		 22°C
(72°F)		 15°C
(59°F)		 10°C
(51°F)
Average high 2°C
(37°F)		 3°C
(38°F)		 9°C
(48°F)		 13°C
(56°F)		 19°C
(66°F)		 23°C
(74°F)		 29°C
(85°F)		 29°C
(84°F)		 23°C
(73°F)		 14°C
(57°F)		 7°C
(45°F)		 2°C
(37°F)
Daily mean 0°C
(32°F)		 -0°C
(32°F)		 4°C
(40°F)		 8°C
(47°F)		 13°C
(56°F)		 18°C
(64°F)		 23°C
(73°F)		 22°C
(72°F)		 16°C
(61°F)		 8°C
(48°F)		 4°C
(39°F)		 -0°C
(32°F)
Average low -2°C
(28°F)		 -4°C
(26°F)		 0°C
(32°F)		 3°C
(38°F)		 8°C
(46°F)		 11°C
(53°F)		 15°C
(59°F)		 15°C
(59°F)		 10°C
(51°F)		 4°C
(39°F)		 1°C
(34°F)		 -2°C
(28°F)
Mean minimum -12°C
(11°F)		 -14°C
(7°F)		 -7°C
(19°F)		 -3°C
(27°F)		 2°C
(36°F)		 6°C
(42°F)		 10°C
(49°F)		 8°C
(48°F)		 4°C
(39°F)		 -6°C
(22°F)		 -6°C
(21°F)		 -11°C
(13°F)
Minimum -19°C
(-2°F)		 -20°C
(-5°F)		 -15°C
(6°F)		 -6°C
(22°F)		 -0°C
(32°F)		 4°C
(40°F)		 8°C
(47°F)		 6°C
(43°F)		 1°C
(34°F)		 -15°C
(5°F)		 -9°C
(16°F)		 -17°C
(1°F)

Compare climate in Palouse with other places

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

Monthly average precipitation in Palouse, Washington, United States §

Palouse usually has the most precipitation in February, November and December, with an average of 15 rainy days and 100 mm (3.9 inches) of precipitation per month.The driest months in Palouse are July, August and September. On average, 16 mm (0.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Palouse, Washington, 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) 81 (3.2) 105 (4.1) 79 (3.1) 72 (2.8) 68 (2.7) 33 (1.3) 5 (0.2) 12 (0.5) 32 (1.2) 76 (3.0) 98 (3.9) 95 (3.8)
Average precipitation days (≥ 1 mm) 14 17 14 13 10 5 1 2 5 11 14 15

Monthly sunshine hours in Palouse, Washington, United States §

The sunniest months in Palouse are June, July and August, when the sun shines an average of 12 hours 16 minutes a day.Least sunny months in Palouse: January, February and December receive an average of 3 hours 57 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Palouse, Washington, 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 100 144 225 277 339 360 412 356 288 235 160 115
Mean daily daylight hours 8h 59m 10h 18m 11h 57m 13h 38m 15h 4m 15h 48m 15h 23m 14h 6m 12h 29m 10h 48m 9h 20m 8h 34m

Solar UV radiation in Palouse, Washington, United States §

Palouse experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 9 - 10, 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 Palouse UV Index data.

Average daily maximum UV levels by month for Palouse, Washington, 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 5 7 8 9 10 9 7 5 3 2