Climate data for Fairfield, California
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 76
(24)
80
(27)
89
(32)
98
(37)
111
(44)
111
(44)
114
(46)
111
(44)
112
(44)
104
(40)
87
(31)
78
(26)
114
(46)
Average high °F (°C) 55.4
(13)
61.5
(16.4)
65.9
(18.8)
71.1
(21.7)
78.0
(25.6)
84.4
(29.1)
89.0
(31.7)
88.8
(31.6)
86.6
(30.3)
78.3
(25.7)
65.4
(18.6)
56.0
(13.3)
73.4
(23)
Average low °F (°C) 37.6
(3.1)
41.1
(5.1)
43.3
(6.3)
45.8
(7.7)
50.3
(10.2)
54.0
(12.2)
56.0
(13.3)
56.0
(13.3)
54.5
(12.5)
49.8
(9.9)
42.7
(5.9)
37.9
(3.3)
47.4
(8.6)
Record low °F (°C) 18
(−8)
24
(−4)
20
(−7)
29
(−2)
35
(2)
31
(−1)
40
(4)
40
(4)
39
(4)
32
(0)
21
(−6)
15
(−9)
15
(−9)
Precipitation inches (mm) 4.77
(121.2)
4.04
(102.6)
3.09
(78.5)
1.39
(35.3)
0.55
(14)
0.17
(4.3)
0.02
(0.5)
0.06
(1.5)
0.24
(6.1)
1.30
(33)
2.75
(69.9)
4.30
(109.2)
22.68
(576.1)
Avg. precipitation days (≥ 0.01 in) 11 10 9 6 3 1 0 0 1 3 7 10 60
Source #1: Western Regional Climate Center (normals and extremes 1950–present)[7]
Source #2: The Weather Channel [8]