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Monthly climate in Sierra Vista, Arizona, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Sierra Vista features a cold semi-arid climate (BSk).Temperatures typically range between 8 °C (47 °F) and 27 °C (81 °F) through the year, but rarely can drop to -10 °C (14 °F) or can rise to as high as 40 °C (105 °F).The average annual precipitation amounts to about 342 mm (13.5 inches) and receives 52 rainy days on the 1 mm (0.04 inches) threshold annually.Sierra Vista enjoys an average of 3623 hours of sunshine throughout the year, and daylight varies from 10 hours 7 minutes to 14 hours 9 minutes per day.

Monthly average temperatures in Sierra Vista, Arizona, United States §

The warmest months in Sierra Vista are June, July and August, with daily mean temperatures ranging from 25 to 27 °C (78 - 81 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 8 to 9 °C (47 - 49 °F) throughout the day. On average each year, Sierra Vista experiences 172 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 Sierra Vista, 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 23°C
(74°F)		 27°C
(81°F)		 29°C
(84°F)		 33°C
(92°F)		 35°C
(96°F)		 40°C
(104°F)		 40°C
(105°F)		 38°C
(101°F)		 35°C
(95°F)		 33°C
(92°F)		 29°C
(84°F)		 23°C
(74°F)
Mean maximum 22°C
(72°F)		 23°C
(74°F)		 27°C
(82°F)		 31°C
(89°F)		 34°C
(94°F)		 38°C
(100°F)		 38°C
(100°F)		 36°C
(96°F)		 34°C
(93°F)		 31°C
(88°F)		 27°C
(80°F)		 22°C
(72°F)
Average high 16°C
(60°F)		 17°C
(63°F)		 21°C
(69°F)		 26°C
(78°F)		 29°C
(85°F)		 34°C
(94°F)		 33°C
(91°F)		 32°C
(89°F)		 30°C
(86°F)		 26°C
(79°F)		 21°C
(71°F)		 15°C
(60°F)
Daily mean 8°C
(47°F)		 9°C
(49°F)		 13°C
(55°F)		 17°C
(64°F)		 21°C
(71°F)		 27°C
(81°F)		 26°C
(79°F)		 25°C
(78°F)		 23°C
(74°F)		 18°C
(65°F)		 14°C
(57°F)		 9°C
(48°F)
Average low 2°C
(36°F)		 3°C
(37°F)		 6°C
(42°F)		 9°C
(48°F)		 12°C
(54°F)		 18°C
(65°F)		 20°C
(68°F)		 19°C
(67°F)		 17°C
(63°F)		 12°C
(53°F)		 8°C
(46°F)		 3°C
(38°F)
Mean minimum -4°C
(25°F)		 -5°C
(23°F)		 -1°C
(31°F)		 3°C
(38°F)		 7°C
(45°F)		 13°C
(55°F)		 16°C
(61°F)		 16°C
(62°F)		 12°C
(54°F)		 4°C
(40°F)		 2°C
(36°F)		 -4°C
(25°F)
Minimum -6°C
(21°F)		 -10°C
(14°F)		 -3°C
(27°F)		 2°C
(36°F)		 3°C
(38°F)		 12°C
(53°F)		 15°C
(59°F)		 15°C
(59°F)		 10°C
(49°F)		 -1°C
(30°F)		 -1°C
(31°F)		 -6°C
(22°F)

Compare climate in Sierra Vista with other places

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

Monthly average precipitation in Sierra Vista, Arizona, United States §

Sierra Vista usually has the most precipitation in July, August and September, with an average of 11 rainy days and 66 mm (2.6 inches) of precipitation per month.The driest months in Sierra Vista are April, May and June. On average, 5 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sierra Vista, 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) 20 (0.8) 25 (1.0) 17 (0.7) 4 (0.2) 3 (0.1) 8 (0.3) 89 (3.5) 71 (2.8) 36 (1.4) 18 (0.7) 27 (1.1) 22 (0.9)
Average precipitation days (≥ 1 mm) 3 4 2 0 1 2 15 13 5 1 2 4

Monthly sunshine hours in Sierra Vista, Arizona, United States §

The sunniest months in Sierra Vista are May, June and July, when the sun shines an average of 11 hours 48 minutes a day.Least sunny months in Sierra Vista: January, February and December receive an average of 7 hours 38 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sierra Vista, 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 204 244 302 335 370 369 346 330 309 301 262 246
Mean daily daylight hours 10h 21m 11h 4m 12h 0m 12h 57m 13h 45m 14h 9m 13h 56m 13h 13m 12h 18m 11h 21m 10h 31m 10h 7m

Solar UV radiation in Sierra Vista, Arizona, United States §

Sierra Vista experiences the highest level of ultraviolet (UV) radiation in April, June and August, when the maximum UV index can reach values of 12 - 13, 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 Sierra Vista UV Index data.

Average daily maximum UV levels by month for Sierra Vista, 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 12 12 13 12 12 11 9 6 5