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                   MONTHLY CLIMATOLOGICAL SUMMARY for DEC. 1997


NAME: HOME CITY: Pacifica  STATE: Ca  ELEV: 540'  LAT: 37.36'N  LONG: 122.27'W 


                   TEMPERATURE (°F), RAIN  (in), WIND SPEED (mph)


                                      HEAT  COOL        AVG
    MEAN                              DEG   DEG         WIND                 DOM
DAY TEMP  HIGH   TIME   LOW    TIME   DAYS  DAYS  RAIN  SPEED HIGH   TIME    DIR
------------------------------------------------------------------------------------
 1  53.0  61.0   2:30p  47.7   3:30a  10.7   0.0  0.00   1.8  10.0   8:30a    NE
 2  52.5  56.8   1:30p  47.8   2:30a  12.7   0.0  0.00   2.4  14.0   9:30a   NNE
 3  55.1  58.6  12:00p  52.1   7:30a   9.7   0.0  0.14   5.8  32.0   2:00p   NNE
 4  55.7  58.3   5:30p  52.4   6:30a   9.7   0.0  0.33   4.9  25.0   9:30p   NNE
 5  56.1  60.8   2:00p  53.4   5:30a   7.9   0.0  0.58   4.8  20.0   2:00a   NNE
 6  55.3  59.6   4:00p  52.2   5:00a   9.1   0.0  0.12   4.0  23.0   1:30a     N
 7  54.3  58.7   3:30a  47.7   9:00p  11.8   0.0  0.89   8.5  37.0   4:30a     S
 8  49.6  53.2  11:30a  45.1  12:00m  15.8   0.0  0.07   4.2  24.0  12:00p     N
 9  48.1  55.7   2:30p  42.8   2:30a  15.8   0.0  0.00   2.0  18.0  11:30a     E
10  51.0  56.9   3:00p  44.5   1:00a  14.3   0.0  0.06   4.8  26.0  11:00a   NNE
11  52.9  59.1   2:30p  48.2  12:00m  11.3   0.0  0.00   5.0  23.0   1:00p   NNE
12  48.7  54.3   3:00p  45.8   7:30a  15.0   0.0  0.00   4.6  20.0  11:30a     N
13  51.0  58.2  10:30p  46.6   1:30a  12.6   0.0  0.25   6.2  33.0   8:00p   NNE
14  53.7  56.5   1:00p  47.3  12:00m  13.1   0.0  0.73   4.7  24.0  12:30p     S
15  48.9  55.6  12:30p  43.7   7:30a  15.3   0.0  0.00   1.4  13.0   9:00p   NNE
16  51.2  57.0   3:30p  46.8   7:30a  13.1   0.0  0.00   1.8  13.0   2:00p   WNW
17  54.6  60.7   1:30p  49.0   9:00p  10.2   0.0  0.09   2.1  20.0  10:00p   NNE
18  52.6  58.9   3:00p  48.4   8:00a  11.3   0.0  0.00   4.1  33.0   9:00p     N
19  51.5  59.1   2:00p  46.6   5:30a  12.2   0.0  0.00   2.5  21.0   6:00a     N
20  51.4  56.9  11:30a  46.0  11:30p  13.5   0.0  0.05   2.3  20.0   5:00p     N
21  49.5  55.4   2:30p  44.4   8:30a  15.1   0.0  0.00   4.5  38.0  12:00m     N
22  48.8  55.6   2:30p  44.5   7:00a  15.0   0.0  0.00   7.7  39.0   1:00a     N
23  50.0  57.4   2:00p  43.0   6:00a  14.8   0.0  0.00   2.5  20.0   4:30p     N
24  51.1  58.0   1:30p  45.2   7:30a  13.4   0.0  0.00   5.2  29.0   3:00p     N
25  49.0  55.2   2:30p  44.1   7:30a  15.3   0.0  0.00   4.9  35.0   5:00a   NNE
26  48.0  55.7   2:30p  42.7   7:00a  15.8   0.0  0.00   1.8  12.0   1:00p     E
27  47.4  53.6   3:30p  41.5   5:30a  17.5   0.0  0.00   2.6  18.0  10:30a     N
28  56.2  59.9   2:00p  50.0  12:30a  10.0   0.0  0.00   5.6  25.0  11:00a   NNE
29  57.5  62.2   2:30p  53.9   9:00a   6.9   0.0  0.00   4.2  20.0   6:00a     S
30  57.5  62.5   1:00p  53.5   6:30a   7.0   0.0  0.00   3.8  17.0   9:00a     W
31  55.9  61.7   3:30p  51.4   8:00a   8.4   0.0  0.00   1.2  14.0   1:30a    NE
-------------------------------------------------------------------------------------
    52.2  62.5    30    41.5    27   384.3   0.0  3.31   3.9  39.0    22     NNE


Max >= 90.0:  0
Max <= 32.0:  0
Min <= 32.0:  0
Min <=  0.0:  0
Max Rain: 0.89 ON 12/07/97
Days of Rain: 11 (>.01 in) 7 (>.1 in) 0 (>1 in)
Heat Base:  65.0  Cool Base:  65.0  Method: (High + Low) / 2