Fontana, CA: Clear/Cloudy Skies, and Daylight Hours
Average Number of Clear Days
Fontana, CA
U.S. Avg.
Difference
January
18
17
+1
February
18
16
+2
March
20
17
+3
April
22
17
+5
May
25
18
+7
June
27
19
+8
July
27
20
+7
August
28
20
+8
September
26
19
+7
October
26
19
+7
November
22
18
+4
December
19
17
+2
Average Number of Cloudy Days
Fontana, CA
U.S. Avg.
Difference
January
13
14
-1
February
10
12
-2
March
11
14
-3
April
8
13
-5
May
6
13
-7
June
3
11
-8
July
4
11
-7
August
3
11
-8
September
4
11
-7
October
5
12
-7
November
8
12
-4
December
12
14
-2
Average Daylight Hours per Day
Fontana, CA
U.S. Avg.
Difference
January
10
10
No difference
February
11
11
No difference
March
12
12
No difference
April
13
13
No difference
May
14
14
No difference
June
14
15
-1
July
14
15
-1
August
13
14
-1
September
13
13
No difference
October
12
12
No difference
November
10
10
No difference
December
10
10
No difference
Fontana, CA: Rainy Days, Snow Days, and Humidity
Average Number of Rainy Days
Fontana, CA
U.S. Avg.
Difference
January
6
9
-3
February
9
8
+1
March
6
9
-3
April
3
7
-4
May
2
7
-5
June
1
7
-6
July
1
7
-6
August
1
6
-5
September
1
7
-6
October
2
7
-5
November
2
8
-6
December
5
8
-3
Average Number of Snow Days
Fontana, CA
U.S. Avg.
Difference
January
0
2
-2
February
0
2
-2
March
0
1
-1
April
0
0
No difference
May
0
0
No difference
June
0
0
No difference
July
0
0
No difference
August
0
0
No difference
September
0
0
No difference
October
0
0
No difference
November
0
1
-1
December
0
2
-2
Average Humidity (%)
Fontana, CA
U.S. Avg.
Difference
January
56
68
-12%
February
54
66
-12%
March
49
63
-14%
April
45
59
-14%
May
41
61
-20%
June
37
60
-23%
July
34
61
-27%
August
36
62
-26%
September
39
63
-24%
October
43
63
-20%
November
50
65
-15%
December
55
68
-13%
The assessments presented on this website, including those related to crime, safety, cost of living, and other location characteristics (e.g., states, cities, towns, villages, neighborhoods, areas, landmarks), are based on various sources and our internal research methods. These assessments are not guaranteed to be accurate or complete and should not be used as the sole basis for making any decisions.