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Monthly climate in Somerton, Arizona, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Somerton features a hot desert climate (BWh).Temperatures typically range between 14 °C (58 °F) and 35 °C (96 °F) through the year, but rarely can drop to 2 °C (36 °F) or can rise to as high as 48 °C (119 °F).The average annual precipitation amounts to about 104 mm (4.1 inches) and receives 13 rainy days on the 1 mm (0.04 inches) threshold annually.Somerton enjoys an average of 3710 hours of sunshine throughout the year, and daylight varies from 10 hours 2 minutes to 14 hours 14 minutes per day.

Monthly average temperatures in Somerton, Arizona, United States §

The warmest months in Somerton are June, July and August, with daily mean temperatures ranging from 32 to 35 °C (90 - 96 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 14 to 16 °C (58 - 61 °F) throughout the day. On average each year, Somerton experiences 242 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Somerton, 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 30°C
(86°F)		 31°C
(89°F)		 36°C
(97°F)		 42°C
(108°F)		 43°C
(110°F)		 48°C
(119°F)		 48°C
(118°F)		 47°C
(116°F)		 48°C
(119°F)		 43°C
(109°F)		 36°C
(97°F)		 28°C
(83°F)
Mean maximum 27°C
(81°F)		 29°C
(84°F)		 33°C
(92°F)		 39°C
(102°F)		 41°C
(106°F)		 44°C
(111°F)		 47°C
(116°F)		 46°C
(115°F)		 44°C
(112°F)		 38°C
(101°F)		 33°C
(92°F)		 26°C
(79°F)
Average high 22°C
(72°F)		 23°C
(74°F)		 27°C
(81°F)		 32°C
(90°F)		 35°C
(95°F)		 40°C
(104°F)		 42°C
(107°F)		 42°C
(108°F)		 39°C
(102°F)		 33°C
(92°F)		 27°C
(82°F)		 21°C
(70°F)
Daily mean 15°C
(59°F)		 16°C
(61°F)		 20°C
(68°F)		 24°C
(76°F)		 27°C
(81°F)		 32°C
(90°F)		 35°C
(96°F)		 35°C
(96°F)		 32°C
(89°F)		 25°C
(78°F)		 20°C
(68°F)		 14°C
(58°F)
Average low 9°C
(49°F)		 10°C
(50°F)		 13°C
(55°F)		 17°C
(62°F)		 19°C
(67°F)		 24°C
(76°F)		 29°C
(84°F)		 29°C
(85°F)		 25°C
(78°F)		 18°C
(65°F)		 13°C
(56°F)		 9°C
(48°F)
Mean minimum 4°C
(40°F)		 4°C
(40°F)		 7°C
(44°F)		 11°C
(52°F)		 14°C
(57°F)		 20°C
(68°F)		 24°C
(76°F)		 25°C
(77°F)		 20°C
(68°F)		 11°C
(53°F)		 8°C
(46°F)		 4°C
(39°F)
Minimum 2°C
(36°F)		 2°C
(37°F)		 4°C
(40°F)		 9°C
(48°F)		 12°C
(53°F)		 18°C
(65°F)		 23°C
(73°F)		 24°C
(75°F)		 16°C
(61°F)		 8°C
(46°F)		 7°C
(45°F)		 2°C
(37°F)

Compare climate in Somerton with other places

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

Monthly average precipitation in Somerton, Arizona, United States §

Somerton usually has the most precipitation in February, March and September, with an average of 1 rainy days and 18 mm (0.7 inches) of precipitation per month.The driest months in Somerton are April, May and June. On average, 1 mm (0.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Somerton, 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) 9 (0.4) 15 (0.6) 19 (0.7) 3 (0.1) 1 (0.0) 0 (0.0) 6 (0.2) 6 (0.2) 20 (0.8) 8 (0.3) 8 (0.3) 9 (0.4)
Average precipitation days (≥ 1 mm) 1 2 1 0 0 0 2 2 2 1 1 1

Monthly sunshine hours in Somerton, Arizona, United States §

The sunniest months in Somerton are May, June and July, when the sun shines an average of 12 hours 12 minutes a day.Least sunny months in Somerton: January, February and December receive an average of 7 hours 43 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Somerton, 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 205 251 308 331 372 376 373 357 321 303 263 246
Mean daily daylight hours 10h 16m 11h 1m 12h 0m 12h 59m 13h 49m 14h 14m 14h 0m 13h 16m 12h 18m 11h 19m 10h 28m 10h 2m

Solar UV radiation in Somerton, Arizona, United States §

Somerton 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 Somerton UV Index data.

Average daily maximum UV levels by month for Somerton, 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 9 10 11 12 12 11 10 8 5 4