Climatological Report (Daily)
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316
CDUS46 KMTR 200826
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
126 AM PDT FRI APR 20 2018


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR APRIL 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         63    141 PM  86    2009  65     -2       67
  MINIMUM         48    522 AM  40    1971  49     -1       49
                                      1967
  AVERAGE         56                        57     -1       58

PRECIPITATION (IN)
  YESTERDAY        0.00          1.25 1988   0.04  -0.04     0.10
  MONTH TO DATE    2.24                      0.94   1.30     2.20
  SINCE OCT 1     13.85                     19.51  -5.66    30.87
  SINCE JAN 1     10.80                     12.15  -1.35    21.92

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

DEGREE DAYS
 HEATING
  YESTERDAY        9                         8      1        7
  MONTH TO DATE  139                       165    -26      136
  SINCE MAR 1    438                       479    -41      377
  SINCE JUL 1   1804                      2285   -481     1954

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        1
  SINCE MAR 1      4                         1      3        1
  SINCE JAN 1      4                         1      3        1
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED  15   RESULTANT WIND DIRECTION   W (280)
  HIGHEST WIND SPEED    29   HIGHEST WIND DIRECTION     W (270)
  HIGHEST GUST SPEED    35   HIGHEST GUST DIRECTION     W (270)
  AVERAGE WIND SPEED    14.5


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    80           300 AM
 LOWEST     51          1100 AM
 AVERAGE    66

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   65        91      2009
 MINIMUM TEMPERATURE (F)   49        38      1967


SUNRISE AND SUNSET
APRIL 20 2018.........SUNRISE   628 AM PDT   SUNSET   750 PM PDT
APRIL 21 2018.........SUNRISE   626 AM PDT   SUNSET   751 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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