Template:Fresno, California weatherbox
| Climate data for Fresno, California (Fresno Airport), 1991–2020 normals,[a] extremes 1881–present[b] | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °F (°C) | 78 (26) |
84 (29) |
91 (33) |
101 (38) |
110 (43) |
112 (44) |
115 (46) |
113 (45) |
114 (46) |
105 (41) |
90 (32) |
77 (25) |
115 (46) |
| Mean maximum °F (°C) | 68.1 (20.1) |
73.7 (23.2) |
81.9 (27.7) |
90.8 (32.7) |
99.0 (37.2) |
105.9 (41.1) |
107.7 (42.1) |
107.1 (41.7) |
103.1 (39.5) |
93.2 (34.0) |
79.6 (26.4) |
67.4 (19.7) |
109.2 (42.9) |
| Mean daily maximum °F (°C) | 55.4 (13.0) |
61.3 (16.3) |
67.5 (19.7) |
73.7 (23.2) |
82.7 (28.2) |
91.4 (33.0) |
97.7 (36.5) |
96.5 (35.8) |
90.7 (32.6) |
78.7 (25.9) |
64.9 (18.3) |
55.3 (12.9) |
76.3 (24.6) |
| Daily mean °F (°C) | 48.0 (8.9) |
52.3 (11.3) |
57.4 (14.1) |
62.3 (16.8) |
70.2 (21.2) |
77.6 (25.3) |
83.5 (28.6) |
82.2 (27.9) |
77.1 (25.1) |
66.7 (19.3) |
55.1 (12.8) |
47.5 (8.6) |
65.0 (18.3) |
| Mean daily minimum °F (°C) | 40.6 (4.8) |
43.3 (6.3) |
47.3 (8.5) |
50.9 (10.5) |
57.6 (14.2) |
63.9 (17.7) |
69.3 (20.7) |
67.9 (19.9) |
63.4 (17.4) |
54.6 (12.6) |
45.4 (7.4) |
39.8 (4.3) |
53.7 (12.1) |
| Mean minimum °F (°C) | 30.5 (−0.8) |
33.4 (0.8) |
37.2 (2.9) |
40.4 (4.7) |
47.7 (8.7) |
52.9 (11.6) |
60.1 (15.6) |
59.7 (15.4) |
53.8 (12.1) |
44.6 (7.0) |
34.7 (1.5) |
30.2 (−1.0) |
28.8 (−1.8) |
| Record low °F (°C) | 17 (−8) |
24 (−4) |
26 (−3) |
32 (0) |
36 (2) |
42 (6) |
50 (10) |
49 (9) |
37 (3) |
27 (−3) |
26 (−3) |
18 (−8) |
17 (−8) |
| Average precipitation inches (mm) | 2.16 (55) |
1.93 (49) |
1.90 (48) |
1.04 (26) |
0.42 (11) |
0.24 (6.1) |
0.03 (0.76) |
0.00 (0.00) |
0.05 (1.3) |
0.56 (14) |
0.87 (22) |
1.79 (45) |
10.99 (279) |
| Average precipitation days (≥ 0.01 in) | 7.7 | 8.5 | 7.2 | 4.5 | 2.7 | 0.7 | 0.3 | 0.1 | 0.6 | 2.2 | 4.7 | 7.3 | 46.5 |
| Average relative humidity (%) | 83.3 | 77.2 | 68.9 | 57.4 | 47.3 | 41.9 | 39.2 | 44.7 | 50.0 | 58.5 | 74.1 | 84.2 | 60.6 |
| Average dew point °F (°C) | 39.4 (4.1) |
42.4 (5.8) |
43.2 (6.2) |
43.2 (6.2) |
45.3 (7.4) |
48.9 (9.4) |
52.3 (11.3) |
54.1 (12.3) |
51.6 (10.9) |
47.3 (8.5) |
43.2 (6.2) |
39.6 (4.2) |
45.9 (7.7) |
| Mean monthly sunshine hours | 141.5 | 196.9 | 286.2 | 335.5 | 398.9 | 412.2 | 428.2 | 399.6 | 345.9 | 302.3 | 189.9 | 127.1 | 3,564.2 |
| Percent possible sunshine | 46 | 65 | 77 | 85 | 91 | 94 | 96 | 95 | 93 | 87 | 62 | 42 | 80 |
| Source: NOAA (relative humidity, dew points and sun 1961–1990)[1][2][3] | |||||||||||||
- ^ Mean 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.
- ^ Official records for Fresno kept September 1881 to 15 August 1887 at downtown, 16 August 1887 to June 1939 at Fresno City Offices, July 1939 to 20 August 1949 at Chandler Field, and at Fresno Yosemite Int'l since 21 August 1949. For more information, see Threadex
- ^ "NowData – NOAA Online Weather Data". National Oceanic and Atmospheric Administration. Retrieved 2021-10-16.
- ^ "Summary of Monthly Normals 1991–2020". National Oceanic and Atmospheric Administration. Archived from the original on 2023-08-10. Retrieved 2021-10-16.
- ^ "WMO Climate Normals for FRESNO/AIR TERMINAL CA 1961–1990". National Oceanic and Atmospheric Administration. Archived from the original on 2023-08-10. Retrieved 2014-03-11.