| Climate data for Yuma, Arizona (1991–2020 normals[a], sunshine 1981–2010, extremes 1878–present) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °F (°C) | 88 (31) |
97 (36) |
102 (39) |
107 (42) |
120 (49) |
122 (50) |
124 (51) |
120 (49) |
123 (51) |
112 (44) |
98 (37) |
86 (30) |
124 (51) |
| Mean maximum °F (°C) | 79.5 (26.4) |
84.1 (28.9) |
92.8 (33.8) |
100.3 (37.9) |
106.2 (41.2) |
112.9 (44.9) |
115.0 (46.1) |
114.4 (45.8) |
110.6 (43.7) |
102.2 (39.0) |
89.5 (31.9) |
78.0 (25.6) |
116.6 (47.0) |
| Mean daily maximum °F (°C) | 69.8 (21.0) |
73.4 (23.0) |
80.2 (26.8) |
86.4 (30.2) |
94.3 (34.6) |
103.3 (39.6) |
106.7 (41.5) |
106.4 (41.3) |
101.4 (38.6) |
90.2 (32.3) |
77.7 (25.4) |
67.8 (19.9) |
88.1 (31.2) |
| Daily mean °F (°C) | 58.8 (14.9) |
61.9 (16.6) |
67.6 (19.8) |
73.1 (22.8) |
80.6 (27.0) |
89.1 (31.7) |
94.6 (34.8) |
94.8 (34.9) |
89.5 (31.9) |
78.0 (25.6) |
66.1 (18.9) |
57.3 (14.1) |
76.0 (24.4) |
| Mean daily minimum °F (°C) | 47.9 (8.8) |
50.4 (10.2) |
55.0 (12.8) |
59.8 (15.4) |
66.9 (19.4) |
75.0 (23.9) |
82.6 (28.1) |
83.2 (28.4) |
77.6 (25.3) |
65.7 (18.7) |
54.4 (12.4) |
46.8 (8.2) |
63.8 (17.7) |
| Mean minimum °F (°C) | 38.1 (3.4) |
40.8 (4.9) |
44.7 (7.1) |
49.6 (9.8) |
56.8 (13.8) |
65.1 (18.4) |
75.2 (24.0) |
75.0 (23.9) |
66.9 (19.4) |
54.6 (12.6) |
44.1 (6.7) |
37.2 (2.9) |
35.6 (2.0) |
| Record low °F (°C) | 22 (−6) |
25 (−4) |
31 (−1) |
38 (3) |
39 (4) |
50 (10) |
61 (16) |
58 (14) |
50 (10) |
35 (2) |
29 (−2) |
22 (−6) |
22 (−6) |
| Average precipitation inches (mm) | 0.39 (9.9) |
0.38 (9.7) |
0.39 (9.9) |
0.14 (3.6) |
0.06 (1.5) |
0.01 (0.25) |
0.24 (6.1) |
0.20 (5.1) |
0.68 (17) |
0.13 (3.3) |
0.23 (5.8) |
0.43 (11) |
3.28 (83) |
| Average precipitation days (≥ 0.01 in) | 2.6 | 2.3 | 1.9 | 0.8 | 0.5 | 0.1 | 1.2 | 1.4 | 1.5 | 1.0 | 1.0 | 2.3 | 16.6 |
| Mean monthly sunshine hours | 268.4 | 270.8 | 335.5 | 365.5 | 407.4 | 415.4 | 392.6 | 375.6 | 341.7 | 319.6 | 270.1 | 252.7 | 4,015.3 |
| Percent possible sunshine | 84 | 88 | 90 | 94 | 95 | 97 | 90 | 91 | 92 | 91 | 86 | 81 | 90 |
| Average ultraviolet index | 3 | 5 | 7 | 8 | 10 | 10 | 11 | 10 | 9 | 6 | 4 | 3 | 7 |
| Source 1: NOAA[1][2] | |||||||||||||
| Source 2: Weather Atlas [3] | |||||||||||||
- ^ Mean monthly maxima and minima (i.e. the highest and lowest temperature readings during an entire month or year) calculated based on data at said location from 1991 to 2020.
- ^ "NOWData – NOAA Online Weather Data". National Weather Service. Retrieved 2022-08-03.
- ^ "U.S. Climate Normals Quick Access – Station: Yuma MCAS, AZ". National Oceanic and Atmospheric Administration. Retrieved June 16, 2023.
- ^ "Yuma, Arizona, USA - Monthly weather forecast and Climate data". Weather Atlas. Retrieved 2019-05-17.