Climatological Report (Daily)
Issued by NWS

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CDUS46 KMTR 210025
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
525 PM PDT SUN MAY 20 2018


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR MAY 20 2018...
VALID TODAY AS OF 0500 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         62    149 PM  93    1988  68     -6       87
  MINIMUM         55    126 PM  45    1982  52      3       52
  AVERAGE         59                        60     -1       70

PRECIPITATION (IN)
  TODAY            0.00          1.53 1957   0.01  -0.01     0.00
  MONTH TO DATE    T                         0.35  -0.35      T
  SINCE OCT 1     13.85                     20.21  -6.36    30.87
  SINCE JAN 1     10.80                     12.85  -2.05    21.92

SNOWFALL (IN)
  TODAY            0.0           0.0
  MONTH TO DATE    0.0
  SINCE MAR 1      0.0
  SINCE JUL 1      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY            6                         6      0        0
  MONTH TO DATE   89                       126    -37       90
  SINCE MAR 1    580                       688   -108      522
  SINCE JUL 1   1946                      2494   -548     2099

 COOLING
  TODAY            0                         0      0        5
  MONTH TO DATE    2                         0      2       21
  SINCE MAR 1      6                         6      0       23
  SINCE JAN 1      6                         6      0       23
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED  20   RESULTANT WIND DIRECTION   W (260)
  HIGHEST WIND SPEED    30   HIGHEST WIND DIRECTION     W (260)
  HIGHEST GUST SPEED    38   HIGHEST GUST DIRECTION     W (270)
  AVERAGE WIND SPEED    19.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    72          1200 AM
 LOWEST     55           100 PM
 AVERAGE    64

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   68        92      2000
 MINIMUM TEMPERATURE (F)   52        45      1974
                                             1962
                                             1899


SUNRISE AND SUNSET
MAY 20 2018...........SUNRISE   556 AM PDT   SUNSET   816 PM PDT
MAY 21 2018...........SUNRISE   555 AM PDT   SUNSET   817 PM PDT


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




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