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Monthly climate in Ramona, California, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Ramona features a hot-summer Mediterranean climate (Csa).Temperatures typically range between 11 °C (52 °F) and 25 °C (77 °F) through the year, but rarely can drop to -2 °C (29 °F) or can rise to as high as 43 °C (109 °F).The average annual precipitation amounts to about 426 mm (16.8 inches) and receives 46 rainy days on the 1 mm (0.04 inches) threshold annually.Ramona enjoys an average of 3670 hours of sunshine throughout the year, and daylight varies from 9 hours 59 minutes to 14 hours 17 minutes per day.

Monthly average temperatures in Ramona, California, United States §

The warmest months in Ramona are July, August and September, with daily mean temperatures ranging from 23 to 25 °C (74 - 77 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 11 to 11 °C (52 - 52 °F) throughout the day. On average each year, Ramona experiences 140 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 Ramona, 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 29°C
(85°F)		 28°C
(82°F)		 28°C
(84°F)		 33°C
(92°F)		 33°C
(91°F)		 36°C
(97°F)		 42°C
(109°F)		 38°C
(101°F)		 43°C
(109°F)		 37°C
(99°F)		 32°C
(91°F)		 28°C
(82°F)
Mean maximum 25°C
(77°F)		 25°C
(77°F)		 26°C
(80°F)		 31°C
(89°F)		 31°C
(87°F)		 33°C
(91°F)		 36°C
(97°F)		 36°C
(97°F)		 37°C
(100°F)		 34°C
(93°F)		 31°C
(88°F)		 25°C
(78°F)
Average high 18°C
(64°F)		 17°C
(63°F)		 18°C
(65°F)		 22°C
(71°F)		 23°C
(73°F)		 28°C
(82°F)		 31°C
(88°F)		 32°C
(89°F)		 30°C
(86°F)		 26°C
(80°F)		 23°C
(73°F)		 18°C
(64°F)
Daily mean 11°C
(52°F)		 11°C
(52°F)		 12°C
(54°F)		 15°C
(60°F)		 17°C
(62°F)		 21°C
(70°F)		 25°C
(76°F)		 25°C
(77°F)		 23°C
(74°F)		 19°C
(67°F)		 15°C
(60°F)		 11°C
(52°F)
Average low 6°C
(43°F)		 6°C
(42°F)		 7°C
(45°F)		 10°C
(49°F)		 11°C
(53°F)		 15°C
(59°F)		 19°C
(66°F)		 19°C
(67°F)		 17°C
(63°F)		 13°C
(55°F)		 10°C
(50°F)		 6°C
(43°F)
Mean minimum 1°C
(34°F)		 0°C
(32°F)		 1°C
(35°F)		 5°C
(41°F)		 6°C
(43°F)		 11°C
(51°F)		 14°C
(58°F)		 15°C
(59°F)		 12°C
(54°F)		 7°C
(45°F)		 5°C
(41°F)		 1°C
(33°F)
Minimum -1°C
(31°F)		 -2°C
(29°F)		 -1°C
(30°F)		 3°C
(39°F)		 5°C
(41°F)		 9°C
(49°F)		 13°C
(55°F)		 14°C
(57°F)		 9°C
(48°F)		 4°C
(40°F)		 2°C
(37°F)		 -0°C
(32°F)

Compare climate in Ramona with other places

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

Monthly average precipitation in Ramona, California, United States §

Ramona usually has the most precipitation in February, March and December, with an average of 8 rainy days and 76 mm (3.0 inches) of precipitation per month.The driest months in Ramona are June, August and September. On average, 4 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Ramona, 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) 66 (2.6) 90 (3.5) 71 (2.8) 30 (1.2) 30 (1.2) 3 (0.1) 7 (0.3) 4 (0.2) 6 (0.2) 15 (0.6) 36 (1.4) 67 (2.6)
Average precipitation days (≥ 1 mm) 7 8 10 3 5 0 1 1 1 2 2 6

Monthly sunshine hours in Ramona, California, United States §

The sunniest months in Ramona are May, June and July, when the sun shines an average of 12 hours 12 minutes a day.Least sunny months in Ramona: January, February and December receive an average of 7 hours 22 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Ramona, 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 193 247 302 328 370 373 379 362 321 300 259 230
Mean daily daylight hours 10h 14m 11h 0m 12h 0m 13h 1m 13h 52m 14h 17m 14h 3m 13h 17m 12h 19m 11h 18m 10h 25m 9h 59m

Solar UV radiation in Ramona, California, United States §

Ramona experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 12 - 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 Ramona UV Index data.

Average daily maximum UV levels by month for Ramona, 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 9 11 12 12 12 11 11 8 5 4