nomadseason

Monthly climate in Calwa, California, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Calwa features a cold semi-arid climate (BSk).Temperatures typically range between 10 °C (50 °F) and 31 °C (88 °F) through the year, but rarely can drop to -2 °C (30 °F) or can rise to as high as 46 °C (114 °F).The average annual precipitation amounts to about 437 mm (17.2 inches) and receives 40 rainy days on the 1 mm (0.04 inches) threshold annually.Calwa enjoys an average of 3590 hours of sunshine throughout the year, and daylight varies from 9 hours 40 minutes to 14 hours 36 minutes per day.

Monthly average temperatures in Calwa, California, United States §

The warmest months in Calwa are June, July and August, with daily mean temperatures ranging from 27 to 31 °C (82 - 88 °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 - 53 °F) throughout the day. On average each year, Calwa 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 Calwa, 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 22°C
(73°F)		 29°C
(84°F)		 32°C
(91°F)		 36°C
(97°F)		 42°C
(107°F)		 44°C
(112°F)		 44°C
(112°F)		 46°C
(114°F)		 43°C
(110°F)		 35°C
(96°F)		 28°C
(82°F)		 24°C
(76°F)
Mean maximum 21°C
(69°F)		 24°C
(76°F)		 29°C
(84°F)		 33°C
(91°F)		 38°C
(100°F)		 40°C
(104°F)		 42°C
(108°F)		 43°C
(109°F)		 41°C
(106°F)		 33°C
(92°F)		 26°C
(80°F)		 21°C
(69°F)
Average high 16°C
(60°F)		 18°C
(65°F)		 20°C
(69°F)		 25°C
(77°F)		 29°C
(85°F)		 35°C
(95°F)		 39°C
(102°F)		 38°C
(100°F)		 34°C
(93°F)		 27°C
(82°F)		 21°C
(70°F)		 15°C
(60°F)
Daily mean 10°C
(50°F)		 11°C
(53°F)		 14°C
(57°F)		 18°C
(65°F)		 22°C
(72°F)		 27°C
(82°F)		 31°C
(88°F)		 30°C
(86°F)		 26°C
(79°F)		 20°C
(67°F)		 14°C
(57°F)		 10°C
(50°F)
Average low 6°C
(42°F)		 6°C
(43°F)		 8°C
(47°F)		 12°C
(53°F)		 15°C
(59°F)		 20°C
(68°F)		 23°C
(74°F)		 23°C
(73°F)		 19°C
(66°F)		 12°C
(55°F)		 8°C
(47°F)		 5°C
(42°F)
Mean minimum 1°C
(34°F)		 0°C
(33°F)		 3°C
(37°F)		 6°C
(44°F)		 10°C
(51°F)		 13°C
(56°F)		 19°C
(67°F)		 18°C
(65°F)		 14°C
(57°F)		 7°C
(45°F)		 3°C
(38°F)		 1°C
(34°F)
Minimum -1°C
(30°F)		 -1°C
(31°F)		 2°C
(35°F)		 5°C
(41°F)		 8°C
(47°F)		 11°C
(52°F)		 18°C
(64°F)		 17°C
(63°F)		 11°C
(53°F)		 7°C
(44°F)		 1°C
(34°F)		 -2°C
(30°F)

Compare climate in Calwa with other places

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

Monthly average precipitation in Calwa, California, United States §

Calwa usually has the most precipitation in January, February and March, with an average of 7 rainy days and 84 mm (3.3 inches) of precipitation per month.The driest months in Calwa 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 Calwa, 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) 87 (3.4) 73 (2.9) 93 (3.6) 38 (1.5) 23 (0.9) 1 (0.0) 0 (0.0) 0 (0.0) 1 (0.0) 14 (0.6) 39 (1.5) 69 (2.7)
Average precipitation days (≥ 1 mm) 7 7 9 4 2 0 0 0 0 1 3 7

Monthly sunshine hours in Calwa, California, United States §

The sunniest months in Calwa are May, June and July, when the sun shines an average of 12 hours 25 minutes a day.Least sunny months in Calwa: January, February and December receive an average of 6 hours 54 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Calwa, 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 174 232 280 321 369 383 389 362 318 292 244 221
Mean daily daylight hours 9h 57m 10h 51m 11h 59m 13h 9m 14h 8m 14h 36m 14h 20m 13h 28m 12h 21m 11h 11m 10h 11m 9h 40m

Solar UV radiation in Calwa, California, United States §

Calwa experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / 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 Calwa UV Index data.

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