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Monthly climate in Richgrove, California, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Richgrove features a cold semi-arid climate (BSk).Temperatures typically range between 10 °C (50 °F) and 31 °C (87 °F) through the year, but rarely can drop to -2 °C (29 °F) or can rise to as high as 43 °C (110 °F).The average annual precipitation amounts to about 355 mm (14.0 inches) and receives 45 rainy days on the 1 mm (0.04 inches) threshold annually.Richgrove enjoys an average of 3594 hours of sunshine throughout the year, and daylight varies from 9 hours 45 minutes to 14 hours 31 minutes per day.

Monthly average temperatures in Richgrove, California, United States §

The warmest months in Richgrove are June, July and August, with daily mean temperatures ranging from 27 to 31 °C (81 - 87 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 10 to 11 °C (50 - 52 °F) throughout the day. On average each year, Richgrove experiences 157 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 Richgrove, 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 23°C
(74°F)		 27°C
(81°F)		 29°C
(84°F)		 33°C
(93°F)		 39°C
(102°F)		 42°C
(108°F)		 43°C
(109°F)		 43°C
(110°F)		 42°C
(108°F)		 35°C
(95°F)		 28°C
(82°F)		 24°C
(75°F)
Mean maximum 21°C
(70°F)		 24°C
(75°F)		 27°C
(81°F)		 31°C
(89°F)		 35°C
(96°F)		 38°C
(100°F)		 41°C
(106°F)		 41°C
(106°F)		 40°C
(104°F)		 33°C
(91°F)		 27°C
(81°F)		 21°C
(71°F)
Average high 15°C
(60°F)		 17°C
(63°F)		 19°C
(66°F)		 23°C
(74°F)		 27°C
(81°F)		 33°C
(92°F)		 37°C
(99°F)		 37°C
(98°F)		 33°C
(91°F)		 26°C
(80°F)		 20°C
(69°F)		 15°C
(60°F)
Daily mean 10°C
(51°F)		 11°C
(52°F)		 13°C
(56°F)		 17°C
(63°F)		 21°C
(70°F)		 27°C
(81°F)		 31°C
(87°F)		 30°C
(86°F)		 26°C
(79°F)		 20°C
(68°F)		 14°C
(58°F)		 10°C
(50°F)
Average low 6°C
(43°F)		 6°C
(43°F)		 8°C
(47°F)		 12°C
(53°F)		 15°C
(59°F)		 20°C
(69°F)		 24°C
(75°F)		 23°C
(74°F)		 19°C
(67°F)		 13°C
(55°F)		 9°C
(48°F)		 6°C
(42°F)
Mean minimum 1°C
(34°F)		 0°C
(33°F)		 3°C
(37°F)		 6°C
(44°F)		 9°C
(49°F)		 13°C
(56°F)		 21°C
(70°F)		 19°C
(67°F)		 13°C
(55°F)		 8°C
(46°F)		 3°C
(38°F)		 1°C
(34°F)
Minimum -1°C
(31°F)		 -2°C
(29°F)		 2°C
(35°F)		 4°C
(40°F)		 7°C
(46°F)		 12°C
(53°F)		 19°C
(66°F)		 19°C
(66°F)		 10°C
(50°F)		 6°C
(43°F)		 2°C
(36°F)		 -0°C
(32°F)

Compare climate in Richgrove with other places

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

Monthly average precipitation in Richgrove, California, United States §

Richgrove usually has the most precipitation in February, March and December, with an average of 9 rainy days and 66 mm (2.6 inches) of precipitation per month.The driest months in Richgrove are June, July and August. On average, 0 mm (0.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Richgrove, 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) 58 (2.3) 62 (2.4) 78 (3.1) 33 (1.3) 23 (0.9) 1 (0.0) 0 (0.0) 0 (0.0) 2 (0.1) 9 (0.4) 30 (1.2) 59 (2.3)
Average precipitation days (≥ 1 mm) 7 9 10 4 3 0 0 0 0 1 3 8

Monthly sunshine hours in Richgrove, California, United States §

The sunniest months in Richgrove are May, June and July, when the sun shines an average of 12 hours 18 minutes a day.Least sunny months in Richgrove: January, February and December receive an average of 6 hours 56 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Richgrove, 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 177 232 286 323 366 379 386 361 317 294 246 222
Mean daily daylight hours 10h 1m 10h 53m 11h 59m 13h 7m 14h 4m 14h 31m 14h 16m 13h 26m 12h 21m 11h 13m 10h 15m 9h 45m

Solar UV radiation in Richgrove, California, United States §

Richgrove experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 11 - 11, which corresponds to the Extreme category of sun exposure.January, February and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 5. For more detailed information, check out our hourly Richgrove UV Index data.

Average daily maximum UV levels by month for Richgrove, 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) 4 5 8 9 10 11 11 11 9 7 5 3