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Monthly climate in Cottonwood, California, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Cottonwood features a hot-summer Mediterranean climate (Csa).Temperatures typically range between 10 °C (50 °F) and 28 °C (82 °F) through the year, but rarely can drop to -3 °C (27 °F) or can rise to as high as 46 °C (116 °F).The average annual precipitation amounts to about 469 mm (18.5 inches) and receives 44 rainy days on the 1 mm (0.04 inches) threshold annually.Cottonwood enjoys an average of 3403 hours of sunshine throughout the year, and daylight varies from 9 hours 29 minutes to 14 hours 48 minutes per day.

Monthly average temperatures in Cottonwood, California, United States §

The warmest months in Cottonwood are June, July and August, with daily mean temperatures ranging from 26 to 28 °C (79 - 82 °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 - 54 °F) throughout the day. On average each year, Cottonwood experiences 171 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 Cottonwood, 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 27°C
(80°F)		 29°C
(84°F)		 32°C
(89°F)		 35°C
(96°F)		 40°C
(105°F)		 45°C
(113°F)		 45°C
(113°F)		 45°C
(113°F)		 46°C
(116°F)		 41°C
(106°F)		 30°C
(87°F)		 24°C
(76°F)
Mean maximum 21°C
(70°F)		 25°C
(77°F)		 28°C
(83°F)		 33°C
(92°F)		 38°C
(100°F)		 41°C
(107°F)		 43°C
(110°F)		 43°C
(110°F)		 42°C
(109°F)		 35°C
(95°F)		 27°C
(81°F)		 21°C
(70°F)
Average high 15°C
(60°F)		 18°C
(66°F)		 20°C
(68°F)		 25°C
(77°F)		 29°C
(85°F)		 35°C
(95°F)		 37°C
(100°F)		 37°C
(99°F)		 34°C
(93°F)		 28°C
(82°F)		 20°C
(69°F)		 15°C
(60°F)
Daily mean 10°C
(51°F)		 12°C
(54°F)		 13°C
(56°F)		 17°C
(64°F)		 21°C
(71°F)		 26°C
(79°F)		 28°C
(82°F)		 27°C
(81°F)		 25°C
(76°F)		 20°C
(67°F)		 14°C
(57°F)		 10°C
(50°F)
Average low 6°C
(43°F)		 7°C
(45°F)		 8°C
(46°F)		 11°C
(52°F)		 14°C
(58°F)		 18°C
(65°F)		 18°C
(65°F)		 18°C
(64°F)		 16°C
(61°F)		 12°C
(54°F)		 8°C
(46°F)		 6°C
(42°F)
Mean minimum -1°C
(31°F)		 0°C
(32°F)		 2°C
(36°F)		 4°C
(40°F)		 9°C
(48°F)		 13°C
(55°F)		 14°C
(58°F)		 13°C
(55°F)		 9°C
(49°F)		 5°C
(41°F)		 1°C
(34°F)		 1°C
(34°F)
Minimum -3°C
(28°F)		 -3°C
(27°F)		 1°C
(34°F)		 3°C
(37°F)		 5°C
(41°F)		 10°C
(50°F)		 13°C
(55°F)		 10°C
(51°F)		 5°C
(41°F)		 3°C
(38°F)		 -2°C
(29°F)		 -0°C
(32°F)

Compare climate in Cottonwood with other places

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

Monthly average precipitation in Cottonwood, California, United States §

Cottonwood usually has the most precipitation in January, February and December, with an average of 7 rainy days and 94 mm (3.7 inches) of precipitation per month.The driest months in Cottonwood 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 Cottonwood, 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) 111 (4.4) 98 (3.9) 73 (2.9) 27 (1.1) 19 (0.8) 3 (0.1) 1 (0.0) 0 (0.0) 1 (0.0) 26 (1.0) 35 (1.4) 74 (2.9)
Average precipitation days (≥ 1 mm) 8 6 9 5 2 0 0 0 0 1 5 8

Monthly sunshine hours in Cottonwood, California, United States §

The sunniest months in Cottonwood are May, June and July, when the sun shines an average of 12 hours 27 minutes a day.Least sunny months in Cottonwood: January, February and December receive an average of 5 hours 53 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Cottonwood, 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 140 207 252 296 360 386 398 358 316 281 215 188
Mean daily daylight hours 9h 48m 10h 45m 11h 59m 13h 14m 14h 17m 14h 48m 14h 31m 13h 35m 12h 22m 11h 7m 10h 2m 9h 29m

Solar UV radiation in Cottonwood, California, United States §

Cottonwood 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 Cottonwood UV Index data.

Average daily maximum UV levels by month for Cottonwood, 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