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Monthly climate in Willow Valley, Arizona, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Willow Valley features a hot desert climate (BWh).Temperatures typically range between 11 °C (52 °F) and 35 °C (95 °F) through the year, but rarely can drop to -2 °C (29 °F) or can rise to as high as 47 °C (118 °F).The average annual precipitation amounts to about 148 mm (5.8 inches) and receives 20 rainy days on the 1 mm (0.04 inches) threshold annually.Willow Valley enjoys an average of 3653 hours of sunshine throughout the year, and daylight varies from 9 hours 50 minutes to 14 hours 27 minutes per day.

Monthly average temperatures in Willow Valley, Arizona, United States §

The warmest months in Willow Valley are June, July and August, with daily mean temperatures ranging from 32 to 35 °C (91 - 95 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 11 to 13 °C (52 - 55 °F) throughout the day. On average each year, Willow Valley experiences 196 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 Willow Valley, 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 24°C
(75°F)		 27°C
(80°F)		 33°C
(91°F)		 38°C
(101°F)		 42°C
(107°F)		 47°C
(118°F)		 47°C
(116°F)		 46°C
(115°F)		 46°C
(115°F)		 39°C
(103°F)		 32°C
(90°F)		 26°C
(79°F)
Mean maximum 22°C
(71°F)		 25°C
(77°F)		 30°C
(86°F)		 35°C
(96°F)		 38°C
(101°F)		 42°C
(108°F)		 45°C
(114°F)		 44°C
(112°F)		 43°C
(109°F)		 35°C
(95°F)		 29°C
(85°F)		 22°C
(72°F)
Average high 17°C
(63°F)		 19°C
(66°F)		 23°C
(73°F)		 28°C
(83°F)		 32°C
(90°F)		 38°C
(101°F)		 40°C
(105°F)		 40°C
(105°F)		 36°C
(97°F)		 29°C
(84°F)		 23°C
(74°F)		 17°C
(62°F)
Daily mean 11°C
(52°F)		 13°C
(55°F)		 17°C
(62°F)		 22°C
(72°F)		 26°C
(79°F)		 32°C
(91°F)		 35°C
(95°F)		 35°C
(94°F)		 30°C
(87°F)		 22°C
(72°F)		 16°C
(62°F)		 11°C
(52°F)
Average low 6°C
(43°F)		 7°C
(45°F)		 11°C
(51°F)		 15°C
(60°F)		 19°C
(66°F)		 25°C
(77°F)		 29°C
(84°F)		 28°C
(83°F)		 24°C
(75°F)		 15°C
(60°F)		 10°C
(51°F)		 6°C
(43°F)
Mean minimum 1°C
(33°F)		 0°C
(33°F)		 3°C
(39°F)		 8°C
(47°F)		 12°C
(53°F)		 18°C
(64°F)		 24°C
(75°F)		 24°C
(76°F)		 17°C
(63°F)		 7°C
(46°F)		 4°C
(39°F)		 1°C
(34°F)
Minimum -2°C
(29°F)		 -1°C
(31°F)		 0°C
(33°F)		 4°C
(39°F)		 10°C
(50°F)		 15°C
(59°F)		 21°C
(71°F)		 24°C
(75°F)		 13°C
(55°F)		 4°C
(39°F)		 2°C
(37°F)		 -1°C
(31°F)

Compare climate in Willow Valley with other places

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

Monthly average precipitation in Willow Valley, Arizona, United States §

Willow Valley usually has the most precipitation in January, March and November, with an average of 2 rainy days and 23 mm (0.9 inches) of precipitation per month.The driest months in Willow Valley are April, May and June. On average, 2 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Willow Valley, 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) 20 (0.8) 24 (0.9) 3 (0.1) 3 (0.1) 1 (0.0) 18 (0.7) 6 (0.2) 7 (0.3) 8 (0.3) 23 (0.9) 13 (0.5)
Average precipitation days (≥ 1 mm) 3 2 4 0 1 0 3 1 1 1 1 3

Monthly sunshine hours in Willow Valley, Arizona, United States §

The sunniest months in Willow Valley are May, June and July, when the sun shines an average of 12 hours 15 minutes a day.Least sunny months in Willow Valley: January, February and December receive an average of 7 hours 17 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Willow Valley, 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 187 241 296 326 373 379 375 359 322 296 259 233
Mean daily daylight hours 10h 5m 10h 55m 11h 59m 13h 5m 14h 0m 14h 27m 14h 12m 13h 23m 12h 20m 11h 15m 10h 18m 9h 50m

Solar UV radiation in Willow Valley, Arizona, United States §

Willow Valley 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 Willow Valley UV Index data.

Average daily maximum UV levels by month for Willow Valley, 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) 4 6 8 10 11 12 12 11 10 7 5 4