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Monthly climate in El Rio, California, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification El Rio features a warm-summer Mediterranean climate (Csb).Temperatures typically range between 13 °C (56 °F) and 21 °C (70 °F) through the year, but rarely can drop to 5 °C (42 °F) or can rise to as high as 36 °C (97 °F).The average annual precipitation amounts to about 373 mm (14.7 inches) and receives 30 rainy days on the 1 mm (0.04 inches) threshold annually.El Rio enjoys an average of 3596 hours of sunshine throughout the year, and daylight varies from 9 hours 53 minutes to 14 hours 23 minutes per day.

Monthly average temperatures in El Rio, California, United States §

The warmest months in El Rio are July, August and September, with daily mean temperatures ranging from 20 to 21 °C (69 - 70 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 13 to 13 °C (56 - 57 °F) throughout the day. On average each year, El Rio experiences 33 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in El Rio, 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 26°C
(79°F)		 27°C
(81°F)		 23°C
(74°F)		 29°C
(85°F)		 26°C
(80°F)		 29°C
(85°F)		 34°C
(94°F)		 30°C
(87°F)		 34°C
(93°F)		 36°C
(97°F)		 28°C
(83°F)		 25°C
(78°F)
Mean maximum 23°C
(73°F)		 22°C
(72°F)		 22°C
(72°F)		 26°C
(78°F)		 23°C
(74°F)		 26°C
(79°F)		 28°C
(84°F)		 28°C
(83°F)		 29°C
(85°F)		 31°C
(88°F)		 27°C
(80°F)		 22°C
(72°F)
Average high 17°C
(63°F)		 17°C
(63°F)		 17°C
(63°F)		 19°C
(66°F)		 19°C
(67°F)		 21°C
(71°F)		 24°C
(75°F)		 24°C
(76°F)		 24°C
(75°F)		 23°C
(74°F)		 20°C
(69°F)		 17°C
(63°F)
Daily mean 13°C
(56°F)		 13°C
(56°F)		 14°C
(57°F)		 16°C
(60°F)		 16°C
(61°F)		 18°C
(65°F)		 21°C
(69°F)		 21°C
(70°F)		 20°C
(69°F)		 19°C
(66°F)		 16°C
(61°F)		 13°C
(57°F)
Average low 10°C
(51°F)		 10°C
(50°F)		 10°C
(51°F)		 12°C
(54°F)		 13°C
(56°F)		 16°C
(61°F)		 18°C
(65°F)		 18°C
(65°F)		 18°C
(64°F)		 16°C
(60°F)		 13°C
(56°F)		 10°C
(51°F)
Mean minimum 7°C
(44°F)		 6°C
(44°F)		 7°C
(44°F)		 9°C
(49°F)		 10°C
(51°F)		 13°C
(56°F)		 16°C
(61°F)		 16°C
(62°F)		 14°C
(58°F)		 12°C
(54°F)		 9°C
(49°F)		 7°C
(45°F)
Minimum 6°C
(43°F)		 5°C
(42°F)		 6°C
(43°F)		 8°C
(47°F)		 10°C
(50°F)		 12°C
(54°F)		 15°C
(59°F)		 16°C
(61°F)		 13°C
(55°F)		 10°C
(51°F)		 7°C
(44°F)		 6°C
(43°F)

Compare climate in El Rio with other places

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

Monthly average precipitation in El Rio, California, United States §

El Rio usually has the most precipitation in January, March and December, with an average of 6 rainy days and 77 mm (3.0 inches) of precipitation per month.The driest months in El Rio are July, August and September. On average, 2 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in El Rio, 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) 84 (3.3) 69 (2.7) 78 (3.1) 20 (0.8) 14 (0.5) 4 (0.1) 1 (0.1) 2 (0.1) 2 (0.1) 9 (0.4) 20 (0.8) 70 (2.8)
Average precipitation days (≥ 1 mm) 5 6 8 3 2 0 0 0 0 0 1 5

Monthly sunshine hours in El Rio, California, United States §

The sunniest months in El Rio are May, June and July, when the sun shines an average of 12 hours 6 minutes a day.Least sunny months in El Rio: January, February and December receive an average of 7 hours 5 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in El Rio, 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 186 232 284 327 364 367 382 359 315 293 256 226
Mean daily daylight hours 10h 9m 10h 57m 11h 59m 13h 3m 13h 57m 14h 23m 14h 8m 13h 21m 12h 20m 11h 16m 10h 21m 9h 53m

Solar UV radiation in El Rio, California, United States §

El Rio experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 11 - 12, 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 5. For more detailed information, check out our hourly El Rio UV Index data.

Average daily maximum UV levels by month for El Rio, 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 6 8 10 11 11 12 11 10 7 5 4