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Monthly climate in Sudden Valley, Washington, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Sudden Valley features a oceanic climate (Cfb). Temperatures typically range between 1 °C (35 °F) and 17 °C (63 °F) through the year, but rarely can drop to -16 °C (4 °F) or can rise to as high as 36 °C (97 °F). The average annual precipitation amounts to about 2003 mm (78.9 inches) and receives 174 rainy days on the 1 mm (0.04 inches) threshold annually. Sudden Valley enjoys an average of 2751 hours of sunshine throughout the year, and daylight varies from 8 hours 19 minutes to 16 hours 4 minutes per day.

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

The warmest months in Sudden Valley are July, August and September, with daily mean temperatures ranging from 14 to 17 °C (58 - 63 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 1 to 3 °C (35 - 37 °F) throughout the day. On average each year, Sudden Valley experiences 8 days above 25 °C (77.0 °F) and 51 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Sudden 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
(54°F)		 11°C
(52°F)		 22°C
(71°F)		 22°C
(72°F)		 24°C
(76°F)		 36°C
(97°F)		 29°C
(85°F)		 32°C
(90°F)		 29°C
(85°F)		 21°C
(70°F)		 14°C
(58°F)		 11°C
(53°F)
Mean maximum 10°C
(50°F)		 9°C
(49°F)		 13°C
(57°F)		 17°C
(64°F)		 21°C
(70°F)		 25°C
(77°F)		 27°C
(81°F)		 29°C
(85°F)		 25°C
(78°F)		 17°C
(63°F)		 13°C
(56°F)		 10°C
(50°F)
Average high 5°C
(41°F)		 4°C
(40°F)		 8°C
(46°F)		 10°C
(51°F)		 14°C
(58°F)		 17°C
(63°F)		 20°C
(69°F)		 21°C
(70°F)		 18°C
(64°F)		 12°C
(53°F)		 8°C
(46°F)		 4°C
(40°F)
Daily mean 3°C
(37°F)		 1°C
(35°F)		 4°C
(40°F)		 7°C
(45°F)		 11°C
(52°F)		 14°C
(57°F)		 16°C
(62°F)		 17°C
(63°F)		 14°C
(58°F)		 9°C
(48°F)		 6°C
(42°F)		 2°C
(37°F)
Average low 1°C
(34°F)		 -1°C
(31°F)		 2°C
(35°F)		 4°C
(39°F)		 7°C
(46°F)		 10°C
(51°F)		 13°C
(55°F)		 13°C
(56°F)		 11°C
(52°F)		 6°C
(43°F)		 3°C
(38°F)		 0°C
(33°F)
Mean minimum -7°C
(20°F)		 -7°C
(19°F)		 -4°C
(26°F)		 -2°C
(29°F)		 4°C
(39°F)		 7°C
(44°F)		 10°C
(50°F)		 9°C
(49°F)		 6°C
(44°F)		 1°C
(33°F)		 -2°C
(28°F)		 -7°C
(19°F)
Minimum -10°C
(14°F)		 -11°C
(13°F)		 -5°C
(23°F)		 -4°C
(25°F)		 1°C
(35°F)		 6°C
(42°F)		 9°C
(49°F)		 8°C
(46°F)		 5°C
(41°F)		 -2°C
(29°F)		 -3°C
(27°F)		 -16°C
(4°F)

Compare climate in Sudden Valley with other places

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

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

Sudden Valley usually has the most precipitation in January, November and December, with an average of 18 rainy days and 273 mm (10.7 inches) of precipitation per month. The driest months in Sudden Valley are June, July and August. On average, 48 mm (1.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sudden 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) 240 (9.4) 228 (9.0) 194 (7.6) 152 (6.0) 94 (3.7) 80 (3.2) 36 (1.4) 26 (1.0) 150 (5.9) 225 (8.9) 307 (12.1) 271 (10.7)
Average precipitation days (≥ 1 mm) 16 19 18 17 13 11 6 5 13 17 20 19

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

The sunniest months in Sudden Valley are June, July and August, when the sun shines an average of 11 hours 42 minutes a day. Least sunny months in Sudden Valley: January, November and December receive an average of 3 hours 21 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sudden 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 86 140 206 240 332 341 388 347 257 186 124 97
Mean daily daylight hours 8h 47m 10h 11m 11h 57m 13h 44m 15h 17m 16h 4m 15h 38m 14h 14m 12h 30m 10h 43m 9h 8m 8h 19m

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

Sudden Valley experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 8 - 9, which corresponds to the Very High category of sun exposure. January, November and December are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 2. For more detailed information, check out our hourly Sudden Valley UV Index data.

Average daily maximum UV levels by month for Sudden 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 9 8 6 4 2 1

Detailed Monthly Weather Insights for Sudden Valley, Washington, United States

Discover in-depth weather details for every month in Sudden Valley. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Sudden Valley's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.