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Monthly climate in Cascade Valley, Washington, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Cascade Valley features a cold semi-arid climate (BSk).Temperatures typically range between 0 °C (32 °F) and 26 °C (79 °F) through the year, but rarely can drop to -22 °C (-8 °F) or can rise to as high as 47 °C (116 °F).The average annual precipitation amounts to about 271 mm (10.7 inches) and receives 60 rainy days on the 1 mm (0.04 inches) threshold annually.Cascade Valley enjoys an average of 3199 hours of sunshine throughout the year, and daylight varies from 8 hours 32 minutes to 15 hours 50 minutes per day.

Monthly average temperatures in Cascade Valley, Washington, United States §

The warmest months in Cascade Valley are June, July and August, with daily mean temperatures ranging from 22 to 26 °C (72 - 79 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 0 to 1 °C (32 - 33 °F) throughout the day. On average each year, Cascade Valley experiences 97 days above 25 °C (77.0 °F) and 78 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Cascade Valley, 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 12°C
(55°F)		 16°C
(61°F)		 21°C
(70°F)		 30°C
(86°F)		 35°C
(95°F)		 47°C
(116°F)		 44°C
(112°F)		 41°C
(106°F)		 38°C
(100°F)		 30°C
(85°F)		 20°C
(68°F)		 19°C
(66°F)
Mean maximum 9°C
(49°F)		 11°C
(53°F)		 19°C
(67°F)		 25°C
(77°F)		 32°C
(90°F)		 36°C
(97°F)		 40°C
(105°F)		 40°C
(104°F)		 34°C
(94°F)		 24°C
(76°F)		 17°C
(64°F)		 13°C
(56°F)
Average high 3°C
(37°F)		 5°C
(41°F)		 12°C
(54°F)		 17°C
(64°F)		 24°C
(76°F)		 28°C
(83°F)		 33°C
(92°F)		 33°C
(91°F)		 26°C
(79°F)		 16°C
(62°F)		 9°C
(48°F)		 3°C
(38°F)
Daily mean -0°C
(32°F)		 1°C
(33°F)		 7°C
(44°F)		 12°C
(53°F)		 18°C
(65°F)		 22°C
(72°F)		 26°C
(79°F)		 26°C
(78°F)		 19°C
(67°F)		 11°C
(52°F)		 5°C
(41°F)		 1°C
(33°F)
Average low -3°C
(27°F)		 -3°C
(26°F)		 2°C
(36°F)		 6°C
(43°F)		 12°C
(53°F)		 15°C
(60°F)		 18°C
(65°F)		 18°C
(65°F)		 13°C
(56°F)		 6°C
(43°F)		 1°C
(35°F)		 -2°C
(29°F)
Mean minimum -11°C
(12°F)		 -10°C
(14°F)		 -5°C
(23°F)		 0°C
(33°F)		 5°C
(42°F)		 10°C
(50°F)		 14°C
(57°F)		 12°C
(54°F)		 7°C
(45°F)		 -2°C
(28°F)		 -4°C
(25°F)		 -9°C
(16°F)
Minimum -22°C
(-8°F)		 -14°C
(6°F)		 -15°C
(5°F)		 -2°C
(28°F)		 4°C
(39°F)		 9°C
(48°F)		 13°C
(55°F)		 11°C
(52°F)		 4°C
(39°F)		 -8°C
(17°F)		 -7°C
(20°F)		 -15°C
(6°F)

Compare climate in Cascade Valley with other places

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

Monthly average precipitation in Cascade Valley, Washington, United States §

Cascade Valley usually has the most precipitation in January, November and December, with an average of 8 rainy days and 38 mm (1.5 inches) of precipitation per month.The driest months in Cascade Valley are June, July and August. On average, 4 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Cascade Valley, 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) 43 (1.7) 34 (1.3) 27 (1.1) 26 (1.0) 13 (0.5) 7 (0.3) 1 (0.0) 3 (0.1) 13 (0.5) 31 (1.2) 38 (1.5) 34 (1.4)
Average precipitation days (≥ 1 mm) 10 8 6 6 4 2 0 0 2 6 8 8

Monthly sunshine hours in Cascade Valley, Washington, United States §

The sunniest months in Cascade Valley are May, June and July, when the sun shines an average of 12 hours 40 minutes a day.Least sunny months in Cascade Valley: January, November and December receive an average of 4 hours 23 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Cascade Valley, 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 101 172 252 302 363 383 419 361 293 246 169 133
Mean daily daylight hours 8h 58m 10h 18m 11h 57m 13h 39m 15h 6m 15h 50m 15h 25m 14h 7m 12h 29m 10h 48m 9h 19m 8h 32m

Solar UV radiation in Cascade Valley, Washington, United States §

Cascade Valley 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, February 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 Cascade Valley UV Index data.

Average daily maximum UV levels by month for Cascade Valley, 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 3 5 6 8 9 10 9 7 5 3 2