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Monthly climate in Willcox, Arizona, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Willcox features a cold semi-arid climate (BSk).Temperatures typically range between 8 °C (46 °F) and 28 °C (83 °F) through the year, but rarely can drop to -7 °C (20 °F) or can rise to as high as 40 °C (105 °F).The average annual precipitation amounts to about 266 mm (10.5 inches) and receives 43 rainy days on the 1 mm (0.04 inches) threshold annually.Willcox enjoys an average of 3626 hours of sunshine throughout the year, and daylight varies from 10 hours 3 minutes to 14 hours 13 minutes per day.

Monthly average temperatures in Willcox, Arizona, United States §

The warmest months in Willcox are June, July and August, with daily mean temperatures ranging from 27 to 28 °C (81 - 83 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 8 to 9 °C (46 - 49 °F) throughout the day. On average each year, Willcox experiences 170 days above 25 °C (77.0 °F) and 17 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Willcox, 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
(79°F)		 30°C
(86°F)		 33°C
(92°F)		 37°C
(98°F)		 40°C
(105°F)		 40°C
(105°F)		 40°C
(103°F)		 37°C
(99°F)		 33°C
(92°F)		 28°C
(83°F)		 23°C
(73°F)
Mean maximum 20°C
(69°F)		 23°C
(74°F)		 28°C
(82°F)		 31°C
(89°F)		 35°C
(95°F)		 38°C
(100°F)		 39°C
(102°F)		 37°C
(99°F)		 35°C
(96°F)		 32°C
(90°F)		 26°C
(80°F)		 21°C
(70°F)
Average high 14°C
(58°F)		 16°C
(62°F)		 21°C
(70°F)		 26°C
(79°F)		 30°C
(86°F)		 35°C
(95°F)		 34°C
(93°F)		 33°C
(92°F)		 30°C
(87°F)		 26°C
(79°F)		 21°C
(69°F)		 14°C
(58°F)
Daily mean 8°C
(46°F)		 9°C
(49°F)		 14°C
(57°F)		 19°C
(66°F)		 23°C
(73°F)		 28°C
(83°F)		 28°C
(82°F)		 27°C
(81°F)		 25°C
(76°F)		 19°C
(67°F)		 14°C
(57°F)		 8°C
(47°F)
Average low 2°C
(36°F)		 3°C
(38°F)		 7°C
(45°F)		 11°C
(52°F)		 14°C
(58°F)		 20°C
(68°F)		 22°C
(72°F)		 21°C
(71°F)		 18°C
(66°F)		 12°C
(55°F)		 7°C
(46°F)		 3°C
(38°F)
Mean minimum -4°C
(26°F)		 -4°C
(24°F)		 1°C
(33°F)		 4°C
(40°F)		 9°C
(48°F)		 15°C
(59°F)		 18°C
(65°F)		 18°C
(65°F)		 13°C
(56°F)		 5°C
(40°F)		 2°C
(35°F)		 -3°C
(26°F)
Minimum -5°C
(24°F)		 -7°C
(20°F)		 -1°C
(31°F)		 3°C
(38°F)		 6°C
(43°F)		 13°C
(55°F)		 17°C
(63°F)		 17°C
(62°F)		 11°C
(51°F)		 0°C
(32°F)		 -1°C
(31°F)		 -6°C
(22°F)

Compare climate in Willcox with other places

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

Monthly average precipitation in Willcox, Arizona, United States §

Willcox usually has the most precipitation in July, August and September, with an average of 7 rainy days and 43 mm (1.7 inches) of precipitation per month.The driest months in Willcox are April, May and June. On average, 4 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Willcox, 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) 22 (0.9) 28 (1.1) 13 (0.5) 3 (0.1) 3 (0.1) 7 (0.3) 58 (2.3) 40 (1.6) 31 (1.2) 11 (0.4) 23 (0.9) 26 (1.0)
Average precipitation days (≥ 1 mm) 4 4 2 1 1 1 11 8 4 2 2 3

Monthly sunshine hours in Willcox, Arizona, United States §

The sunniest months in Willcox are May, June and July, when the sun shines an average of 11 hours 54 minutes a day.Least sunny months in Willcox: January, February and December receive an average of 7 hours 31 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Willcox, 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 199 242 302 335 368 369 357 335 310 297 263 243
Mean daily daylight hours 10h 17m 11h 2m 12h 0m 12h 59m 13h 48m 14h 13m 13h 59m 13h 15m 12h 18m 11h 20m 10h 29m 10h 3m

Solar UV radiation in Willcox, Arizona, United States §

Willcox 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 Willcox UV Index data.

Average daily maximum UV levels by month for Willcox, 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