Climatological Report (Daily)
Issued by NWS

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000
CDUS46 KMTR 201245
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
445 AM PST SAT JAN 20 2018


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR JANUARY 19 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1927 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         57    108 PM  68    1976  56      1       58
  MINIMUM         47   1159 PM  35    1980  44      3       51
  AVERAGE         52                        50      2       55

PRECIPITATION (IN)
  YESTERDAY        T             1.52 2010   0.12  -0.12     0.05
  MONTH TO DATE    4.21                      2.63   1.58     6.86
  SINCE OCT 1      7.26                      9.99  -2.73    15.81
  SINCE JAN 1      4.21                      2.63   1.58     6.86

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

DEGREE DAYS
 HEATING
  YESTERDAY       13                        15     -2       10
  MONTH TO DATE  203                       285    -82      263
  SINCE DEC 1    602                       731   -129      700
  SINCE JUL 1    941                      1295   -354     1114

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1      0                         0      0        0
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   7   RESULTANT WIND DIRECTION   W (290)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED     8.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    83           100 AM
 LOWEST     54           200 PM
 AVERAGE    69

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   57        67      1976
 MINIMUM TEMPERATURE (F)   44        30      1963


SUNRISE AND SUNSET
JANUARY 20 2018.......SUNRISE   721 AM PST   SUNSET   520 PM PST
JANUARY 21 2018.......SUNRISE   721 AM PST   SUNSET   521 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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