Climatological Report (Daily)
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000
CDUS46 KMTR 110826
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1226 AM PST MON DEC 11 2017


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR DECEMBER 10 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1927 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         63    522 PM  70    1958  57      6       61
  MINIMUM         42    514 AM  29    1972  45     -3       52
  AVERAGE         53                        51      2       57

PRECIPITATION (IN)
  YESTERDAY        0.00          1.48 1996   0.11  -0.11     0.64
  MONTH TO DATE    0.03                      1.13  -1.10     2.44
  SINCE OCT 1      3.01                      4.46  -1.45     6.76
  SINCE JAN 1     25.20                     17.75   7.45    19.20

SNOWFALL (IN)
  YESTERDAY        0.0           0.0
  MONTH TO DATE    0.0
  SINCE DEC 1      0.0
  SINCE JUL 1      0.0

DEGREE DAYS
 HEATING
  YESTERDAY       12                        14     -2        8
  MONTH TO DATE  111                       134    -23      115
  SINCE DEC 1    111                       134    -23      115
  SINCE JUL 1    450                       698   -248      529

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    346                       164    182      142
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   3   RESULTANT WIND DIRECTION  SE (130)
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION    SE (140)
  HIGHEST GUST SPEED    12   HIGHEST GUST DIRECTION    SE (140)
  AVERAGE WIND SPEED     3.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    71           100 AM
 LOWEST     34           500 PM
 AVERAGE    53

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   57        74      1958
 MINIMUM TEMPERATURE (F)   45        26      1972


SUNRISE AND SUNSET
DECEMBER 11 2017......SUNRISE   715 AM PST   SUNSET   451 PM PST
DECEMBER 12 2017......SUNRISE   715 AM PST   SUNSET   451 PM PST


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




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