Climatological Report (Monthly)
Issued by NWS

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000
CXUS56 KMTR 011430
CLMSFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
730 AM PDT SAT JUN 1 2013

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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR THE MONTH OF MAY 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1927 TO 2013

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              97   05/27/1984
 LOW               39   05/03/1950
HIGHEST            89   05/02                         83  05/07
LOWEST             48   05/23                         47  05/05
                        05/22
AVG. MAXIMUM     68.4              67.6     0.8     66.6
AVG. MINIMUM     52.5                               50.2
MEAN             60.4              59.6     0.8     58.4
DAYS MAX >= 90      0                                  0
DAYS MAX <= 32      0                                  0
DAYS MIN <= 32      0                                  0
DAYS MIN <= 0       0                                  0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         3.81   1957
 MINIMUM         0.00   2008
                        2001
                        1992
TOTALS           0.01              0.47   -0.46        T
DAILY AVG.       0.00              0.02   -0.02        T
DAYS >= .01         1                                  0
DAYS >= .10         0                                  0
DAYS >= .50         0                                  0
DAYS >= 1.00        0                                  0
GREATEST
 24 HR. TOTAL    0.01   05/27 TO 05/27           05/03 TO 05/03
                                                          05/31 TO 05/31
                                                          05/31 TO 05/31

DEGREE_DAYS
HEATING TOTAL     160               180     -20      199
 SINCE 7/1       2551              2548       3     2706
COOLING TOTAL      23                13      10        2
 SINCE 1/1         27                19       8        7
..................................................

WIND (MPH)
AVERAGE WIND SPEED              14.6
RESULTANT WIND SPEED/DIRECTION  13/270
HIGHEST WIND SPEED/DIRECTION    48/270    DATE  05/21
HIGHEST GUST SPEED/DIRECTION    56/290    DATE  05/21

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           14
NUMBER OF DAYS PC             11
NUMBER OF DAYS CLOUDY          6

AVERAGE RH (PERCENT)     63

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                3     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       3     FOG W/VIS <= 1/4 MILE      0
HAZE                      1

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

$$
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