Climatological Report (Daily)
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000
CDUS46 KMTR 210908
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
208 AM PDT FRI JUL 21 2017


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR JULY 20 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1927 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         68    337 PM  93    1996  72     -4       68
  MINIMUM         56    537 AM  49    1981  56      0       56
  AVERAGE         62                        64     -2       62

PRECIPITATION (IN)
  YESTERDAY        0.00          0.03 1985   0.00   0.00     0.00
  MONTH TO DATE    0.00                      0.00   0.00      T
  SINCE OCT 1     30.92                     20.44  10.48    17.23
  SINCE JAN 1     21.97                     13.08   8.89    12.44

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

DEGREE DAYS
 HEATING
  YESTERDAY        3                         2      1        3
  MONTH TO DATE   33                        40     -7       44
  SINCE JUN 1    109                       145    -36      105
  SINCE JUL 1     33                        40     -7       44

 COOLING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE   20                        20      0        1
  SINCE JUN 1     47                        41      6       20
  SINCE JAN 1     70                        60     10       51
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED  15   RESULTANT WIND DIRECTION   W (280)
  HIGHEST WIND SPEED    25   HIGHEST WIND DIRECTION     W (270)
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION     W (270)
  AVERAGE WIND SPEED    15.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86           400 AM
 LOWEST     58          1200 PM
 AVERAGE    72

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   72        83      2006
 MINIMUM TEMPERATURE (F)   56        49      1954


SUNRISE AND SUNSET
JULY 21 2017..........SUNRISE   605 AM PDT   SUNSET   827 PM PDT
JULY 22 2017..........SUNRISE   606 AM PDT   SUNSET   826 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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