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Monthly climate in San Jose, Arizona, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification San Jose features a cold semi-arid climate (BSk).Temperatures typically range between 8 °C (47 °F) and 30 °C (86 °F) through the year, but rarely can drop to -5 °C (23 °F) or can rise to as high as 42 °C (108 °F).The average annual precipitation amounts to about 232 mm (9.1 inches) and receives 36 rainy days on the 1 mm (0.04 inches) threshold annually.San Jose enjoys an average of 3606 hours of sunshine throughout the year, and daylight varies from 10 hours 0 minutes to 14 hours 15 minutes per day.

Monthly average temperatures in San Jose, Arizona, United States §

The warmest months in San Jose are June, July and August, with daily mean temperatures ranging from 29 to 30 °C (85 - 86 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 8 to 10 °C (47 - 50 °F) throughout the day. On average each year, San Jose experiences 184 days above 25 °C (77.0 °F) and 19 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in San Jose, Arizona, 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
(72°F)		 26°C
(80°F)		 31°C
(89°F)		 34°C
(94°F)		 38°C
(101°F)		 42°C
(108°F)		 42°C
(108°F)		 41°C
(106°F)		 39°C
(102°F)		 35°C
(95°F)		 29°C
(84°F)		 23°C
(74°F)
Mean maximum 20°C
(68°F)		 24°C
(75°F)		 29°C
(84°F)		 33°C
(91°F)		 36°C
(98°F)		 40°C
(104°F)		 41°C
(105°F)		 39°C
(103°F)		 37°C
(99°F)		 33°C
(92°F)		 27°C
(81°F)		 21°C
(70°F)
Average high 15°C
(59°F)		 17°C
(63°F)		 22°C
(72°F)		 27°C
(81°F)		 31°C
(89°F)		 37°C
(98°F)		 36°C
(97°F)		 35°C
(96°F)		 32°C
(90°F)		 27°C
(81°F)		 21°C
(71°F)		 15°C
(59°F)
Daily mean 8°C
(47°F)		 10°C
(50°F)		 15°C
(59°F)		 20°C
(68°F)		 24°C
(76°F)		 30°C
(86°F)		 30°C
(86°F)		 29°C
(85°F)		 26°C
(79°F)		 20°C
(68°F)		 14°C
(58°F)		 9°C
(48°F)
Average low 2°C
(36°F)		 4°C
(39°F)		 8°C
(46°F)		 12°C
(54°F)		 16°C
(61°F)		 22°C
(71°F)		 24°C
(76°F)		 23°C
(74°F)		 20°C
(68°F)		 13°C
(56°F)		 8°C
(46°F)		 3°C
(38°F)
Mean minimum -4°C
(25°F)		 -3°C
(27°F)		 1°C
(35°F)		 6°C
(43°F)		 10°C
(50°F)		 17°C
(62°F)		 20°C
(67°F)		 20°C
(69°F)		 15°C
(59°F)		 6°C
(43°F)		 2°C
(36°F)		 -3°C
(27°F)
Minimum -5°C
(23°F)		 -5°C
(23°F)		 -0°C
(32°F)		 5°C
(41°F)		 8°C
(47°F)		 14°C
(58°F)		 18°C
(66°F)		 19°C
(66°F)		 13°C
(55°F)		 1°C
(35°F)		 -1°C
(31°F)		 -4°C
(25°F)

Compare climate in San Jose with other places

Compare temperature, precipitation, sunshine, UV index in San Jose, Arizona, United States with other places around the world.

Monthly average precipitation in San Jose, Arizona, United States §

San Jose usually has the most precipitation in February, July and September, with an average of 5 rainy days and 35 mm (1.4 inches) of precipitation per month.The driest months in San Jose are April, May and June. On average, 3 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Jose, Arizona, 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) 23 (0.9) 32 (1.2) 16 (0.6) 2 (0.1) 3 (0.1) 4 (0.2) 45 (1.8) 22 (0.9) 28 (1.1) 13 (0.5) 20 (0.8) 25 (1.0)
Average precipitation days (≥ 1 mm) 4 4 3 0 1 0 8 4 4 2 2 4

Monthly sunshine hours in San Jose, Arizona, United States §

The sunniest months in San Jose are May, June and July, when the sun shines an average of 11 hours 54 minutes a day.Least sunny months in San Jose: 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 San Jose, Arizona, 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 197 239 301 334 369 370 355 336 310 295 261 234
Mean daily daylight hours 10h 15m 11h 1m 12h 0m 13h 0m 13h 51m 14h 15m 14h 2m 13h 17m 12h 19m 11h 18m 10h 26m 10h 0m

Solar UV radiation in San Jose, Arizona, United States §

San Jose experiences the highest level of ultraviolet (UV) radiation in May, July and August, 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 / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly San Jose UV Index data.

Average daily maximum UV levels by month for San Jose, Arizona, 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) 5 7 10 11 12 12 12 12 11 8 6 4