SAN DIEGO, CALIFORNIA
NORMALS, MEANS, AND EXTREMES

LATITUDE: 32 Deg. 44 Min. N LONGITUDE: 117 Deg. 10 Min. W ELEVATION: FT. GRND 13 BARO 33 TIME ZONE: PACIFIC WBAN: 23188

(a)
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
YEAR
TEMPERATURE (Deg. F)
Normals
-Daily Maximum
-Daily Minimum
-Monthly
Extremes
-Record Highest
-Year
-Record Lowest
-Year






55

55



65.9
48.9
57.4

88
1953
29
1949


66.5
50.7
58.6

90
1995
36
1949


66.3
52.8
59.6

93
1988
39
1971


68.4
55.6
62.0

98
1989
41
1945


69.1
59.1
64.1

96
1953
48
1967


71.6
61.9
66.8

101
1979
51
1967


76.2
65.7
71.0

95
1985
55
1948


77.8
67.3
72.6

98
1955
57
1944


77.1
65.6
71.4

111
1963
51
1948


74.6
60.9
67.7

107
1961
43
1971


69.9
53.9
62.0

97
1976
38
1964


66.1
48.8
57.4

88
1963
34
1987


70.8
57.6
64.2

111
SEP 1963
29
JAN 1949
NORMAL DEGREE DAYS
Heating (base 65 Deg. F)
Cooling (base 65 Deg. F)




245
9

189
10

177
9

113
23

73
45

51
105

13
199

0
240

19
211

24
107

109
19

143
7

1256
984
% OF POSSIBLE SUNSHINE
55
72
72
70
67
58
58
68
70
69
68
75
73
68
MEAN SKY COVER(tenths)
Sunrise - Sunset
MEAN NUMBER OF DAYS:
Sunrise to Sunset
-Clear
-Partly Cloudy
-Cloudy
Precipitation
.01 inches or more
Snow, Ice Pellets, Hail
1.0 inches or more
Thunderstorms
Heavy Fog Visibility
1/4 mile or less
Temperature Deg. F
-Maximum
90 Deg. F and above
32 Deg. F and below
-Minimum
32 Deg. F and below
0 Deg. F and below

55


55
55
55

55

55
55

55


3
35

35
35

5.1


12.3
7.5
11.2

6.9

0.0
0.2

3.0


0.0
0.0

0.*
0.0

5.3


10.2
7.6
10.4

6.1

0.0
0.3

2.5


0.*
0.0

0.0
0.0

5.3


10.8
9.4
10.8

7.1

0.0
0.4

1.5


0.1
0.0

0.0
0.0

5.2


10.2
10.0
9.8

4.4

0.0
0.2

1.1


0.2
0.0

0.0
0.0

5.8


8.4
11.3
11.3

2.2

0.0
0.1

0.6


0.1
0.0

0.0
0.0

5.5


9.3
11.7
9.1

1.0

0.0
0.1

0.7


0.4
0.0

0.0
0.0

4.5


12.9
13.0
5.1

0.4

0.0
0.2

0.6


02
0.0

0.0
0.0

4.1


15.1
11.5
4.4

0.5

0.0
0.3

0.6


0.3
0.0

0.0
0.0

4.1


15.0
9.5
5.5

1.1

0.0
0.3

2.2


1.3
0.0

0.0
0.0

4.4


13.7
9.7
7.6

2.4

0.0
0.3

3.2


0.9
0.0

0.0
0.0

4.2


14.7
8.0
7.3

4.5

0.0
0.3

3.5


0.2
0.0

0.0
0.0

4.7


13.6
7.7
9.6

5.7

0.0
0.4

3.9


0.0
0.0

0.0
0.0

4.8


146.3
116.7
102.2

42.2

0.0
3.0

23.3


3.6
0.0

0.*
0.0
AV. STATION PRES. (mb)
23
1017.2
1016.8
1015.4
1014.5
1013.2
1012.2
1012.5
1012.1
1011.6
1013.6
1015.8
1017.1
1014.3
RELATIVE HUMIDITY (%)
Hour 04
Hour 10 (Local Time)
Hour 16
Hour 22

35
35
35
35

71
56
57
71

74
59
59
73

76
61
60
73

76
60
59
73

78
65
64
76

81
69
67
79

82
70
66
80

82
69
67
80

81
66
66
78

77
62
64
76

73
55
61
73

71
54
58
72

77
62
62
75
PRECIPITATION (in.)
Water Equivalent
-Normal
-Maximum Monthly
-Year
-Minimum Monthly
-Year
-Maximum in 24 hrs
-Year
Snow, Ice Pellets, Hail
-Maximum Monthly
-Year
-Maximum in 24 hrs
-Year



55

55

55


55

55



1.80
9.09
1993
T
1976
2.65
1978

T
19
T
1949


1.53
5.40
1976
0.00
1967
2.61
1979

0.0

0.0



1.77
6.96
1991
T
1972
2.40
1952

T
1985
T
1985


0.79
3.71
1.88
0.00
1993
1.98
1988

0.0

0.0



0.19
1.79
1977
0.00
1952
1.50
1977

0.0

0.0



0.07
0.87
1990
0.00
1981
0.82
1990

0.0

0.0



0.02
0.24
1991
0.00
1982
0.23
1991

0.0

0.0



0.10
2.13
1977
0.00
1981
2.13
1977

0.0

0.0



0.24
1.90
1963
0.00
1979
1.00
1986

0.0

0.0



0.37
2.90
1941
0.00
1967
1.39
1986

0.0

0.0



1.45
5.82
1965
0.00
1980
2.44
1944

T
1985
T
1985


1.57
7.60
1943
0.02
1979
3.07
1945

T
1967
T
1967


9.90
9.09
JAN 1993
0.00
APR 1993
3.07
DEC 1945

T
MAR 1985
T
MAR 1985
WIND
Mean Speed (mph)
Prevailing Direction
through 1964
Fastest Mile
-Direction(!!)
-Speed(mph)
-Year
Peak Gust
-Direction(!!)
-Speed(mph)
-Date

55



51
51


12
12


6.0

NE

SE
56
1980

W
64
1988

6.6

WNW

S
45
1980

SW
44
1993

7.5

WNW

SW
46
1945

S
44
1995

7.8

WNW

S
37
1958

SW
40
1988

7.9

WNW

S
30
1977

NW
40
1988

7.8

SSW

S
26
1948

NW
28
1988

7.5

WNW

NW
23
1968

SW
30
1985

7.4

WNW

NW
23
1982

SW
29
1991

7.1

NW

S
31
1978

W
35
1994

6.5

WNW

N
31
1961

NW
32
1991

5.9

NE

SE
51
1944

SW
37
1985

5.6

NE

NW
39
1982

NW
44
1991

7.0

WNW

SE
56
JAN 1980

W
64
JAN 1998
(a) - Length of Record in Years, although individual months may be missing.
0.* or * - The value is between 0.0 and 0.05.
Normals - Based on the 1961 - 1990 record period.
Extremes - Dates are the most recent occurrence.
Wind Dir.- Numerals show tens of degrees clockwise from true north. "00" indicates calm.
Resultant Directions are given to whole degrees.