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Monthly climate in Boron, California, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Boron features a cold desert climate (BWk).Temperatures typically range between 8 °C (48 °F) and 31 °C (88 °F) through the year, but rarely can drop to -4 °C (24 °F) or can rise to as high as 45 °C (113 °F).The average annual precipitation amounts to about 129 mm (5.1 inches) and receives 15 rainy days on the 1 mm (0.04 inches) threshold annually.Boron enjoys an average of 3659 hours of sunshine throughout the year, and daylight varies from 9 hours 49 minutes to 14 hours 27 minutes per day.

Monthly average temperatures in Boron, California, United States §

The warmest months in Boron are June, July and August, with daily mean temperatures ranging from 27 to 31 °C (81 - 88 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 8 to 11 °C (48 - 51 °F) throughout the day. On average each year, Boron experiences 166 days above 25 °C (77.0 °F) and 9 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Boron, 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 24°C
(75°F)		 25°C
(78°F)		 31°C
(88°F)		 35°C
(95°F)		 40°C
(104°F)		 43°C
(110°F)		 45°C
(113°F)		 43°C
(110°F)		 43°C
(109°F)		 37°C
(99°F)		 29°C
(84°F)		 24°C
(75°F)
Mean maximum 21°C
(71°F)		 24°C
(75°F)		 28°C
(82°F)		 32°C
(91°F)		 36°C
(97°F)		 39°C
(102°F)		 42°C
(109°F)		 41°C
(107°F)		 41°C
(106°F)		 33°C
(92°F)		 27°C
(81°F)		 22°C
(71°F)
Average high 16°C
(60°F)		 17°C
(63°F)		 20°C
(68°F)		 25°C
(77°F)		 28°C
(83°F)		 35°C
(95°F)		 38°C
(101°F)		 38°C
(100°F)		 33°C
(93°F)		 27°C
(80°F)		 21°C
(70°F)		 15°C
(59°F)
Daily mean 9°C
(49°F)		 11°C
(51°F)		 13°C
(57°F)		 18°C
(65°F)		 21°C
(71°F)		 27°C
(81°F)		 31°C
(88°F)		 30°C
(87°F)		 26°C
(79°F)		 19°C
(66°F)		 13°C
(57°F)		 8°C
(48°F)
Average low 4°C
(40°F)		 5°C
(41°F)		 7°C
(46°F)		 11°C
(53°F)		 14°C
(58°F)		 20°C
(68°F)		 24°C
(75°F)		 23°C
(73°F)		 18°C
(65°F)		 11°C
(52°F)		 7°C
(44°F)		 3°C
(37°F)
Mean minimum -1°C
(30°F)		 -2°C
(29°F)		 1°C
(34°F)		 5°C
(42°F)		 8°C
(46°F)		 12°C
(54°F)		 19°C
(67°F)		 18°C
(64°F)		 10°C
(50°F)		 4°C
(40°F)		 1°C
(33°F)		 -2°C
(29°F)
Minimum -3°C
(28°F)		 -4°C
(24°F)		 -1°C
(31°F)		 3°C
(39°F)		 7°C
(44°F)		 11°C
(52°F)		 17°C
(63°F)		 16°C
(62°F)		 6°C
(42°F)		 1°C
(34°F)		 -2°C
(28°F)		 -3°C
(27°F)

Compare climate in Boron with other places

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

Monthly average precipitation in Boron, California, United States §

Boron usually has the most precipitation in January, March and December, with an average of 3 rainy days and 27 mm (1.1 inches) of precipitation per month.The driest months in Boron are June, August and September. On average, 0 mm (0.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Boron, 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) 29 (1.2) 19 (0.7) 23 (0.9) 11 (0.4) 4 (0.2) 0 (0.0) 1 (0.0) 0 (0.0) 0 (0.0) 2 (0.1) 9 (0.3) 29 (1.1)
Average precipitation days (≥ 1 mm) 4 2 4 1 1 0 0 0 0 0 0 3

Monthly sunshine hours in Boron, California, United States §

The sunniest months in Boron are May, June and July, when the sun shines an average of 12 hours 19 minutes a day.Least sunny months in Boron: January, February and December receive an average of 7 hours 13 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Boron, 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 186 242 294 329 370 379 384 362 322 299 258 227
Mean daily daylight hours 10h 5m 10h 55m 11h 59m 13h 5m 14h 0m 14h 27m 14h 12m 13h 23m 12h 20m 11h 14m 10h 18m 9h 49m

Solar UV radiation in Boron, California, United States §

Boron experiences the highest level of ultraviolet (UV) radiation in June, 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 Boron UV Index data.

Average daily maximum UV levels by month for Boron, 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 10 11 12 12 11 10 8 5 4