Climatological Report (Daily)
Issued by NWS

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000
CDUS46 KMTR 190052
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
450 PM PST THU JAN 18 2018


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR JANUARY 18 2018...
VALID TODAY AS OF 0400 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         60   1219 PM  68    1948  56      4       55
  MINIMUM         50    544 AM  30    1947  44      6       49
  AVERAGE         55                        50      5       52

PRECIPITATION (IN)
  TODAY            0.05          1.82 1969   0.13  -0.08     0.90
  MONTH TO DATE    4.11                      2.51   1.60     6.81
  SINCE OCT 1      7.16                      9.87  -2.71    15.76
  SINCE JAN 1      4.11                      2.51   1.60     6.81

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

DEGREE DAYS
 HEATING
  TODAY           10                        15     -5       13
  MONTH TO DATE  190                       270    -80      253
  SINCE DEC 1    589                       716   -127      690
  SINCE JUL 1    928                      1280   -352     1104

 COOLING
  TODAY            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   3   RESULTANT WIND DIRECTION  SE (140)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED     4.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          1200 AM
 LOWEST     86          1100 AM
 AVERAGE    93

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   56        68      1976
 MINIMUM TEMPERATURE (F)   44        35      1980


SUNRISE AND SUNSET
JANUARY 18 2018.......SUNRISE   722 AM PST   SUNSET   518 PM PST
JANUARY 19 2018.......SUNRISE   722 AM PST   SUNSET   519 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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