Climatological Report (Monthly)
Issued by NWS

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000
CXUS56 KMTR 011856
CLMSFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1156 AM PDT WED AUG 1 2012

...................................

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR THE MONTH OF JULY 2012...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1927 TO 2012

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             105   07/17/1988
 LOW               44   07/29/1951
HIGHEST            82   07/21                         84  07/03
LOWEST             51   07/10                         52  07/09
                                                          07/06
                                                          07/05
AVG. MAXIMUM     70.1              72.0    -1.9     70.6
AVG. MINIMUM     54.8                               54.8
MEAN             62.4              63.7    -1.3     62.7
DAYS MAX >= 90      0                                  0
DAYS MAX <= 32      0                                  0
DAYS MIN <= 32      0                                  0
DAYS MIN <= 0       0                                  0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         0.35   1977
 MINIMUM         0.00   2010
                        2009
                        2008
TOTALS              T                 T    0.00        T
DAILY AVG.          T              0.00    0.00        T
DAYS >= .01         0                                  0
DAYS >= .10         0                                  0
DAYS >= .50         0                                  0
DAYS >= 1.00        0                                  0
GREATEST
 24 HR. TOTAL       T   07/16 TO 07/16           07/17 TO 07/17
                                                          07/10 TO 07/11
                                                          07/11 TO 07/11

DEGREE_DAYS
HEATING TOTAL      78                65      13       77
 SINCE 7/1         78                65      13       77
COOLING TOTAL       5                24     -19       12
 SINCE 1/1         28                64     -36       33
..................................................

WIND (MPH)
AVERAGE WIND SPEED              11.9
RESULTANT WIND SPEED/DIRECTION  10/279
HIGHEST WIND SPEED/DIRECTION    30/290    DATE  07/21
HIGHEST GUST SPEED/DIRECTION    36/270    DATE  07/20

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           11
NUMBER OF DAYS PC             19
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                0     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      10     FOG W/VIS <= 1/4 MILE      0
HAZE                      2

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$
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