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Monthly climate in Pima, Arizona, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Pima features a cold semi-arid climate (BSk). Temperatures typically range between 7 °C (45 °F) and 29 °C (84 °F) through the year, but rarely can drop to -10 °C (15 °F) or can rise to as high as 42 °C (107 °F). The average annual precipitation amounts to about 267 mm (10.5 inches) and receives 40 rainy days on the 1 mm (0.04 inches) threshold annually. Pima enjoys an average of 3588 hours of sunshine throughout the year, and daylight varies from 10 hours 0 minutes to 14 hours 16 minutes per day.

Monthly average temperatures in Pima, Arizona, United States §

The warmest months in Pima are June, July and August, with daily mean temperatures ranging from 28 to 29 °C (83 - 84 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 7 to 9 °C (45 - 49 °F) throughout the day. On average each year, Pima experiences 172 days above 25 °C (77.0 °F) and 28 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Pima, 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
(71°F)		 25°C
(78°F)		 31°C
(87°F)		 34°C
(93°F)		 37°C
(99°F)		 42°C
(107°F)		 41°C
(106°F)		 40°C
(105°F)		 38°C
(101°F)		 34°C
(93°F)		 28°C
(83°F)		 23°C
(73°F)
Mean maximum 20°C
(68°F)		 23°C
(73°F)		 28°C
(82°F)		 32°C
(89°F)		 35°C
(96°F)		 39°C
(102°F)		 40°C
(104°F)		 38°C
(101°F)		 36°C
(98°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
(69°F)		 26°C
(79°F)		 30°C
(86°F)		 36°C
(96°F)		 35°C
(95°F)		 35°C
(95°F)		 32°C
(89°F)		 26°C
(79°F)		 21°C
(70°F)		 15°C
(59°F)
Daily mean 7°C
(45°F)		 9°C
(49°F)		 13°C
(56°F)		 18°C
(65°F)		 22°C
(73°F)		 28°C
(83°F)		 29°C
(84°F)		 28°C
(83°F)		 25°C
(77°F)		 19°C
(66°F)		 13°C
(56°F)		 8°C
(47°F)
Average low 1°C
(34°F)		 2°C
(37°F)		 6°C
(43°F)		 10°C
(51°F)		 14°C
(57°F)		 20°C
(68°F)		 22°C
(73°F)		 22°C
(71°F)		 18°C
(66°F)		 12°C
(54°F)		 7°C
(44°F)		 2°C
(36°F)
Mean minimum -6°C
(22°F)		 -4°C
(26°F)		 -1°C
(31°F)		 4°C
(39°F)		 8°C
(47°F)		 15°C
(58°F)		 18°C
(65°F)		 19°C
(66°F)		 14°C
(58°F)		 5°C
(41°F)		 1°C
(35°F)		 -4°C
(25°F)
Minimum -10°C
(15°F)		 -6°C
(22°F)		 -2°C
(28°F)		 2°C
(36°F)		 5°C
(42°F)		 12°C
(53°F)		 18°C
(64°F)		 16°C
(62°F)		 11°C
(52°F)		 0°C
(32°F)		 -1°C
(30°F)		 -6°C
(22°F)

Compare climate in Pima with other places

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

Monthly average precipitation in Pima, Arizona, United States §

Pima usually has the most precipitation in January, February and July, with an average of 5 rainy days and 40 mm (1.6 inches) of precipitation per month. The driest months in Pima are April, May and June. On average, 4 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Pima, 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) 32 (1.3) 37 (1.5) 26 (1.0) 2 (0.1) 4 (0.2) 4 (0.2) 51 (2.0) 21 (0.8) 28 (1.1) 16 (0.6) 17 (0.7) 28 (1.1)
Average precipitation days (≥ 1 mm) 4 5 4 0 1 1 8 5 4 2 2 4

Monthly sunshine hours in Pima, Arizona, United States §

The sunniest months in Pima are May, June and July, when the sun shines an average of 11 hours 52 minutes a day. Least sunny months in Pima: January, February and December receive an average of 7 hours 14 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Pima, 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 194 234 301 332 370 370 352 336 311 295 259 230
Mean daily daylight hours 10h 14m 11h 0m 12h 0m 13h 0m 13h 51m 14h 16m 14h 2m 13h 17m 12h 19m 11h 18m 10h 26m 10h 0m

Solar UV radiation in Pima, Arizona, United States §

Pima experiences the highest level of ultraviolet (UV) radiation in May, 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 Pima UV Index data.

Average daily maximum UV levels by month for Pima, 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 13 12 12 11 8 6 5

Detailed Monthly Weather Insights for Pima, Arizona, United States

Discover in-depth weather details for every month in Pima. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Pima's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.