Last updated: March 2, 2024
Under the Köppen–Geiger climate classification Rainbow City features a hot-summer Mediterranean climate (Csa). Temperatures typically range between 3 °C (38 °F) and 23 °C (74 °F) through the year, but rarely can drop to -15 °C (4 °F) or can rise to as high as 37 °C (99 °F). The average annual precipitation amounts to about 542 mm (21.3 inches) and receives 73 rainy days on the 1 mm (0.04 inches) threshold annually. Rainbow City enjoys an average of 3596 hours of sunshine throughout the year, and daylight varies from 9 hours 56 minutes to 14 hours 20 minutes per day.
The warmest months in Rainbow City are June, July and August, with daily mean temperatures ranging from 22 to 23 °C (72 - 74 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 3 to 4 °C (38 - 39 °F) throughout the day. On average each year, Rainbow City experiences 110 days above 25 °C (77.0 °F) and 77 days below 0 °C (32.0 °F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum | 17°C (64°F) |
19°C (66°F) |
24°C (76°F) |
29°C (85°F) |
32°C (91°F) |
37°C (99°F) |
36°C (98°F) |
36°C (97°F) |
35°C (94°F) |
30°C (86°F) |
24°C (76°F) |
20°C (67°F) |
| Mean maximum | 15°C (60°F) |
17°C (62°F) |
21°C (71°F) |
26°C (80°F) |
30°C (86°F) |
34°C (93°F) |
34°C (94°F) |
33°C (92°F) |
32°C (90°F) |
27°C (80°F) |
22°C (72°F) |
17°C (63°F) |
| Average high | 10°C (49°F) |
11°C (51°F) |
14°C (58°F) |
20°C (68°F) |
24°C (75°F) |
30°C (87°F) |
29°C (85°F) |
29°C (85°F) |
27°C (80°F) |
21°C (70°F) |
17°C (62°F) |
11°C (51°F) |
| Daily mean | 3°C (38°F) |
4°C (39°F) |
7°C (46°F) |
13°C (55°F) |
17°C (62°F) |
23°C (74°F) |
23°C (73°F) |
22°C (72°F) |
20°C (68°F) |
14°C (58°F) |
9°C (49°F) |
4°C (39°F) |
| Average low | -2°C (28°F) |
-2°C (29°F) |
1°C (34°F) |
5°C (41°F) |
8°C (47°F) |
14°C (57°F) |
16°C (62°F) |
15°C (60°F) |
13°C (55°F) |
7°C (46°F) |
3°C (38°F) |
-1°C (30°F) |
| Mean minimum | -13°C (9°F) |
-10°C (15°F) |
-9°C (17°F) |
-1°C (30°F) |
1°C (34°F) |
8°C (47°F) |
13°C (55°F) |
12°C (54°F) |
8°C (46°F) |
0°C (32°F) |
-4°C (25°F) |
-9°C (15°F) |
| Minimum | -15°C (4°F) |
-13°C (9°F) |
-14°C (7°F) |
-3°C (27°F) |
-0°C (32°F) |
6°C (43°F) |
12°C (53°F) |
9°C (49°F) |
4°C (39°F) |
-4°C (25°F) |
-10°C (14°F) |
-15°C (5°F) |
Compare temperature, precipitation, sunshine, UV index in Rainbow City, Arizona, United States with other places around the world.
Rainbow City usually has the most precipitation in January, February and July, with an average of 9 rainy days and 83 mm (3.3 inches) of precipitation per month. The driest months in Rainbow City are April, May and June. On average, 11 mm (0.4 inches) of precipitation falls during these months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average precipitation mm (inches) | 58 (2.3) | 64 (2.5) | 55 (2.2) | 11 (0.4) | 15 (0.6) | 7 (0.3) | 126 (5.0) | 53 (2.1) | 41 (1.6) | 36 (1.4) | 26 (1.0) | 49 (1.9) |
| Average precipitation days (≥ 1 mm) | 7 | 7 | 6 | 3 | 3 | 1 | 15 | 11 | 6 | 4 | 3 | 7 |
The sunniest months in Rainbow City are May, June and July, when the sun shines an average of 11 hours 52 minutes a day. Least sunny months in Rainbow City: January, February and December receive an average of 7 hours 15 minutes of sunshine daily.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean monthly sunshine hours | 192 | 234 | 302 | 332 | 371 | 370 | 351 | 338 | 312 | 295 | 260 | 234 |
| Mean daily daylight hours | 10h 10m | 10h 58m | 11h 59m | 13h 2m | 13h 55m | 14h 20m | 14h 6m | 13h 20m | 12h 19m | 11h 17m | 10h 23m | 9h 56m |
Rainbow City 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 Rainbow City UV Index data.
| 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 |
Discover in-depth weather details for every month in Rainbow City. 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 Rainbow City'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.