Monthly climate in Surprise, Arizona, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Surprise features a hot semi-arid climate (BSh).Temperatures typically range between 12 °C (54 °F) and 34 °C (93 °F) through the year, but rarely can drop to -1 °C (31 °F) or can rise to as high as 46 °C (116 °F).The average annual precipitation amounts to about 271 mm (10.7 inches) and receives 30 rainy days on the 1 mm (0.04 inches) threshold annually.Surprise enjoys an average of 3635 hours of sunshine throughout the year, and daylight varies from 9 hours 56 minutes to 14 hours 20 minutes per day.

Monthly average temperatures in Surprise, Arizona, United States §

The warmest months in Surprise are June, July and August, with daily mean temperatures ranging from 32 to 34 °C (91 - 93 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 12 to 13 °C (54 - 56 °F) throughout the day. On average each year, Surprise experiences 208 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 Surprise, 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 27°C
(81°F)
27°C
(81°F)
33°C
(92°F)
38°C
(100°F)
42°C
(107°F)
46°C
(116°F)
46°C
(116°F)
45°C
(114°F)
44°C
(111°F)
39°C
(103°F)
34°C
(94°F)
28°C
(82°F)
Mean maximum 24°C
(75°F)
25°C
(77°F)
30°C
(87°F)
36°C
(96°F)
38°C
(101°F)
42°C
(108°F)
45°C
(113°F)
44°C
(111°F)
42°C
(108°F)
36°C
(97°F)
30°C
(86°F)
25°C
(76°F)
Average high 18°C
(65°F)
19°C
(67°F)
23°C
(74°F)
29°C
(85°F)
33°C
(91°F)
39°C
(102°F)
39°C
(103°F)
39°C
(103°F)
36°C
(98°F)
30°C
(86°F)
25°C
(77°F)
18°C
(65°F)
Daily mean 12°C
(54°F)
13°C
(56°F)
17°C
(63°F)
23°C
(73°F)
26°C
(80°F)
32°C
(91°F)
34°C
(93°F)
34°C
(93°F)
30°C
(87°F)
23°C
(74°F)
18°C
(65°F)
12°C
(54°F)
Average low 7°C
(45°F)
7°C
(45°F)
11°C
(51°F)
15°C
(59°F)
19°C
(66°F)
25°C
(76°F)
28°C
(83°F)
28°C
(82°F)
24°C
(76°F)
17°C
(62°F)
12°C
(54°F)
7°C
(45°F)
Mean minimum 1°C
(35°F)
2°C
(35°F)
4°C
(40°F)
9°C
(49°F)
12°C
(54°F)
19°C
(67°F)
23°C
(74°F)
24°C
(75°F)
18°C
(65°F)
10°C
(51°F)
7°C
(45°F)
1°C
(34°F)
Minimum -1°C
(31°F)
-0°C
(32°F)
2°C
(35°F)
6°C
(43°F)
11°C
(52°F)
17°C
(62°F)
22°C
(73°F)
22°C
(72°F)
13°C
(56°F)
7°C
(46°F)
5°C
(42°F)
1°C
(33°F)

Compare climate in Surprise with other places

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

Monthly average precipitation in Surprise, Arizona, United States §

Surprise usually has the most precipitation in February, March and July, with an average of 4 rainy days and 38 mm (1.5 inches) of precipitation per month.The driest months in Surprise 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 Surprise, 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) 29 (1.1) 39 (1.5) 35 (1.4) 1 (0.1) 2 (0.1) 3 (0.1) 41 (1.6) 29 (1.2) 21 (0.8) 22 (0.9) 26 (1.0) 23 (0.9)
Average precipitation days (≥ 1 mm) 4 4 3 0 0 0 6 5 2 2 1 3

Monthly sunshine hours in Surprise, Arizona, United States §

The sunniest months in Surprise are May, June and July, when the sun shines an average of 12 hours 3 minutes a day.Least sunny months in Surprise: January, February and December receive an average of 7 hours 24 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Surprise, 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 194 242 307 329 372 375 361 347 314 296 256 237
Mean daily daylight hours 10h 11m 10h 58m 11h 59m 13h 2m 13h 54m 14h 20m 14h 6m 13h 19m 12h 19m 11h 17m 10h 23m 9h 56m

Solar UV radiation in Surprise, Arizona, United States §

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

Average daily maximum UV levels by month for Surprise, 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 11 11 10 7 5 4