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Monthly climate in Willows, California, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Willows features a hot-summer Mediterranean climate (Csa).Temperatures typically range between 10 °C (50 °F) and 30 °C (87 °F) through the year, but rarely can drop to -3 °C (26 °F) or can rise to as high as 46 °C (114 °F).The average annual precipitation amounts to about 490 mm (19.3 inches) and receives 49 rainy days on the 1 mm (0.04 inches) threshold annually.Willows enjoys an average of 3369 hours of sunshine throughout the year, and daylight varies from 9 hours 24 minutes to 14 hours 54 minutes per day.

Monthly average temperatures in Willows, California, United States §

The warmest months in Willows are June, July and August, with daily mean temperatures ranging from 28 to 30 °C (82 - 87 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 10 to 12 °C (50 - 53 °F) throughout the day. On average each year, Willows experiences 169 days above 25 °C (77.0 °F) and 2 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Willows, 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 25°C
(78°F)		 29°C
(85°F)		 31°C
(89°F)		 35°C
(95°F)		 41°C
(107°F)		 45°C
(113°F)		 46°C
(114°F)		 45°C
(113°F)		 43°C
(110°F)		 37°C
(99°F)		 29°C
(85°F)		 24°C
(76°F)
Mean maximum 21°C
(70°F)		 24°C
(76°F)		 28°C
(82°F)		 32°C
(91°F)		 38°C
(101°F)		 41°C
(107°F)		 43°C
(111°F)		 42°C
(109°F)		 41°C
(106°F)		 34°C
(93°F)		 27°C
(81°F)		 21°C
(70°F)
Average high 15°C
(59°F)		 18°C
(65°F)		 20°C
(67°F)		 25°C
(77°F)		 30°C
(85°F)		 35°C
(96°F)		 39°C
(102°F)		 37°C
(99°F)		 33°C
(92°F)		 27°C
(81°F)		 20°C
(68°F)		 15°C
(59°F)
Daily mean 10°C
(50°F)		 12°C
(53°F)		 13°C
(56°F)		 18°C
(64°F)		 22°C
(72°F)		 28°C
(82°F)		 30°C
(87°F)		 29°C
(85°F)		 25°C
(78°F)		 19°C
(67°F)		 13°C
(56°F)		 10°C
(50°F)
Average low 6°C
(43°F)		 7°C
(44°F)		 8°C
(46°F)		 11°C
(53°F)		 15°C
(60°F)		 20°C
(69°F)		 22°C
(73°F)		 21°C
(71°F)		 18°C
(65°F)		 13°C
(55°F)		 8°C
(47°F)		 6°C
(42°F)
Mean minimum -0°C
(32°F)		 -0°C
(31°F)		 2°C
(36°F)		 5°C
(41°F)		 9°C
(49°F)		 14°C
(57°F)		 18°C
(65°F)		 16°C
(62°F)		 11°C
(53°F)		 7°C
(45°F)		 1°C
(35°F)		 1°C
(34°F)
Minimum -2°C
(29°F)		 -3°C
(26°F)		 1°C
(34°F)		 3°C
(38°F)		 5°C
(41°F)		 12°C
(55°F)		 17°C
(63°F)		 14°C
(58°F)		 8°C
(46°F)		 5°C
(41°F)		 -1°C
(30°F)		 0°C
(33°F)

Compare climate in Willows with other places

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

Monthly average precipitation in Willows, California, United States §

Willows usually has the most precipitation in January, February and March, with an average of 8 rainy days and 95 mm (3.7 inches) of precipitation per month.The driest months in Willows are July, August and September. On average, 1 mm (0.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Willows, 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) 104 (4.1) 103 (4.0) 79 (3.1) 33 (1.3) 24 (1.0) 5 (0.2) 0 (0.0) 0 (0.0) 2 (0.1) 27 (1.0) 40 (1.6) 72 (2.8)
Average precipitation days (≥ 1 mm) 8 6 11 5 3 1 0 0 0 2 5 8

Monthly sunshine hours in Willows, California, United States §

The sunniest months in Willows are May, June and July, when the sun shines an average of 12 hours 27 minutes a day.Least sunny months in Willows: January, February and December receive an average of 5 hours 40 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Willows, 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 138 201 249 295 361 386 399 353 313 279 214 177
Mean daily daylight hours 9h 43m 10h 43m 11h 58m 13h 16m 14h 21m 14h 54m 14h 36m 13h 37m 12h 23m 11h 6m 9h 58m 9h 24m

Solar UV radiation in Willows, California, United States §

Willows experiences the highest level of ultraviolet (UV) radiation in May, June and July, 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 Willows UV Index data.

Average daily maximum UV levels by month for Willows, 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 10 9 6 4 3