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The tables below display average monthly climate and weather indicators in San Diego California.
Temperature by: Fahrenheit / Centigrade
| San Diego Temperature |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Avg. Temperature |
57.4 |
58.6 |
59.6 |
62.0 |
64.1 |
66.8 |
71.0 |
72.6 |
71.4 |
67.7 |
62.0 |
57.4 |
64.2 |
| Avg. Max Temperature |
65.9 |
66.5 |
66.3 |
68.4 |
69.1 |
71.6 |
76.2 |
77.8 |
77.1 |
74.6 |
69.9 |
66.1 |
70.8 |
| Avg. Min Temperature |
48.9 |
50.7 |
52.8 |
55.6 |
59.1 |
61.9 |
65.7 |
67.3 |
65.6 |
60.9 |
53.9 |
48.8 |
57.6 |
| Days with Max Temp of 90 F or Higher |
0.0 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
< 0.5 |
1.0 |
1.0 |
< 0.5 |
0.0 |
2.0 |
| Days with Min Temp Below Freezing |
< 0.5 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
| | |
| San Diego Heating and Cooling |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Heating Degree Days |
245 |
189 |
177 |
113 |
73.0 |
51.0 |
13.0 |
0.0 |
19.0 |
24.0 |
109 |
243 |
1256 |
| Cooling Degree Days |
9.0 |
10.0 |
9.0 |
23.0 |
45.0 |
105 |
199 |
240 |
211 |
107 |
19.0 |
7.0 |
984 |
| | |
| San Diego Precipitation |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Precipitation (inches) |
1.8 |
1.5 |
1.8 |
0.8 |
0.2 |
0.1 |
0.0 |
0.1 |
0.2 |
0.4 |
1.4 |
1.6 |
9.9 |
| Days with Precipitation 0.01 inch or More |
7.0 |
6.0 |
7.0 |
4.0 |
2.0 |
1.0 |
< 0.5 |
0.0 |
1.0 |
2.0 |
4.0 |
6.0 |
42.0 |
| Monthly Snowfall (inches) |
< 0.05 |
0.0 |
< 0.05 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
< 0.05 |
< 0.05 |
0.0 |
| | |
| Other San Diego Weather Indicators |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Average Wind Speed |
6.0 |
6.6 |
7.5 |
7.8 |
7.9 |
7.8 |
7.5 |
7.4 |
7.1 |
6.5 |
5.9 |
5.6 |
7.0 |
| Clear Days |
12.0 |
10.0 |
11.0 |
10.0 |
8.0 |
9.0 |
13.0 |
15.0 |
15.0 |
14.0 |
15.0 |
14.0 |
146 |
| Partly Cloudy Days |
7.0 |
8.0 |
9.0 |
10.0 |
11.0 |
12.0 |
13.0 |
12.0 |
10.0 |
10.0 |
8.0 |
8.0 |
117 |
| Cloudy Days |
11.0 |
10.0 |
11.0 |
10.0 |
11.0 |
9.0 |
5.0 |
4.0 |
6.0 |
8.0 |
7.0 |
10.0 |
102 |
| Percent of Possible Sunshine |
72.0 |
71.0 |
70.0 |
68.0 |
59.0 |
58.0 |
68.0 |
70.0 |
69.0 |
68.0 |
75.0 |
73.0 |
68.0 |
| Avg. Relative Humidity |
55.0 |
66.0 |
67.5 |
67.5 |
68.5 |
73.0 |
74.5 |
74.5 |
73.5 |
71.5 |
68.5 |
66.0 |
68.0 |
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