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Monthly climate in Willits, California, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Willits features a warm-summer Mediterranean climate (Csb). Temperatures typically range between 6 °C (44 °F) and 22 °C (73 °F) through the year, but rarely can drop to -8 °C (18 °F) or can rise to as high as 39 °C (102 °F). The average annual precipitation amounts to about 999 mm (39.3 inches) and receives 75 rainy days on the 1 mm (0.04 inches) threshold annually. Willits enjoys an average of 3371 hours of sunshine throughout the year, and daylight varies from 9 hours 25 minutes to 14 hours 53 minutes per day.

Monthly average temperatures in Willits, California, United States §

The warmest months in Willits are July, August and September, with daily mean temperatures ranging from 19 to 22 °C (66 - 73 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 6 to 7 °C (44 - 45 °F) throughout the day. On average each year, Willits experiences 98 days above 25 °C (77.0 °F) and 34 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Willits, California, 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 21°C
(70°F)		 25°C
(77°F)		 26°C
(79°F)		 29°C
(84°F)		 30°C
(87°F)		 38°C
(101°F)		 36°C
(97°F)		 36°C
(97°F)		 39°C
(102°F)		 34°C
(94°F)		 26°C
(79°F)		 21°C
(71°F)
Mean maximum 18°C
(66°F)		 21°C
(70°F)		 24°C
(75°F)		 26°C
(79°F)		 29°C
(85°F)		 33°C
(92°F)		 34°C
(94°F)		 35°C
(94°F)		 36°C
(96°F)		 30°C
(86°F)		 24°C
(75°F)		 18°C
(65°F)
Average high 11°C
(53°F)		 13°C
(56°F)		 14°C
(57°F)		 17°C
(63°F)		 20°C
(69°F)		 26°C
(79°F)		 30°C
(86°F)		 29°C
(85°F)		 27°C
(80°F)		 23°C
(73°F)		 16°C
(61°F)		 11°C
(53°F)
Daily mean 6°C
(44°F)		 7°C
(45°F)		 8°C
(47°F)		 11°C
(52°F)		 14°C
(58°F)		 19°C
(66°F)		 22°C
(73°F)		 22°C
(72°F)		 19°C
(66°F)		 15°C
(58°F)		 10°C
(50°F)		 6°C
(44°F)
Average low 2°C
(37°F)		 2°C
(36°F)		 3°C
(37°F)		 5°C
(42°F)		 8°C
(47°F)		 12°C
(54°F)		 15°C
(60°F)		 15°C
(60°F)		 12°C
(54°F)		 8°C
(46°F)		 4°C
(40°F)		 2°C
(36°F)
Mean minimum -3°C
(27°F)		 -4°C
(25°F)		 -3°C
(27°F)		 -1°C
(31°F)		 3°C
(37°F)		 5°C
(42°F)		 11°C
(52°F)		 12°C
(53°F)		 6°C
(43°F)		 3°C
(37°F)		 -3°C
(28°F)		 -3°C
(28°F)
Minimum -6°C
(21°F)		 -8°C
(18°F)		 -5°C
(23°F)		 -2°C
(28°F)		 -1°C
(30°F)		 4°C
(39°F)		 10°C
(50°F)		 10°C
(51°F)		 3°C
(37°F)		 2°C
(35°F)		 -7°C
(19°F)		 -4°C
(26°F)

Compare climate in Willits with other places

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

Monthly average precipitation in Willits, California, United States §

Willits usually has the most precipitation in January, February and March, with an average of 12 rainy days and 178 mm (7.0 inches) of precipitation per month. The driest months in Willits are June, July and August. On average, 3 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Willits, California, 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) 195 (7.7) 193 (7.6) 147 (5.8) 86 (3.4) 59 (2.3) 5 (0.2) 1 (0.0) 2 (0.1) 11 (0.4) 61 (2.4) 108 (4.3) 132 (5.2)
Average precipitation days (≥ 1 mm) 13 10 13 8 5 1 0 0 2 4 8 11

Monthly sunshine hours in Willits, California, United States §

The sunniest months in Willits are June, July and August, when the sun shines an average of 12 hours 24 minutes a day. Least sunny months in Willits: January, February and December receive an average of 5 hours 38 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Willits, California, 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 133 203 258 295 357 384 399 358 311 280 212 176
Mean daily daylight hours 9h 44m 10h 43m 11h 58m 13h 16m 14h 21m 14h 53m 14h 35m 13h 37m 12h 23m 11h 6m 9h 59m 9h 25m

Solar UV radiation in Willits, California, United States §

Willits experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 11 - 11, which corresponds to the Extreme category of sun exposure. January, November and December are in the 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 Willits UV Index data.

Average daily maximum UV levels by month for Willits, California, 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 11 11 11 11 9 7 4 3

Detailed Monthly Weather Insights for Willits, California, United States

Discover in-depth weather details for every month in Willits. 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 Willits'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.