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Climatological Report (Daily)
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CDUS46 KMTR 210827
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1227 AM PST TUE JAN 21 2020


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...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR JANUARY 20 2020...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1927 TO 2020


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         56    536 PM  67    1976  57     -1       58
  MINIMUM         47    738 AM  30    1963  44      3       53
  AVERAGE         52                        50      2       56

PRECIPITATION (IN)
  YESTERDAY        0.00          2.49 1964   0.12  -0.12     0.25
  MONTH TO DATE    1.00                      2.75  -1.75     4.04
  SINCE OCT 1      6.01                     10.11  -4.10     8.92
  SINCE JAN 1      1.00                      2.75  -1.75     4.04

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       13                        15     -2        9
  MONTH TO DATE  283                       300    -17      189
  SINCE DEC 1    631                       746   -115      571
  SINCE JUL 1   1000                      1310   -310     1098

 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   4   RESULTANT WIND DIRECTION  SE (140)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     S (170)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION     S (170)
  AVERAGE WIND SPEED     4.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86           200 AM
 LOWEST     61           600 PM
 AVERAGE    74

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   57        68      2014
 MINIMUM TEMPERATURE (F)   44        30      1962


SUNRISE AND SUNSET
JANUARY 21 2020.......SUNRISE   721 AM PST   SUNSET   521 PM PST
JANUARY 22 2020.......SUNRISE   720 AM PST   SUNSET   522 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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National Weather Service National Headquarters
