Climatological Report (Daily)
Issued by NWS

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000
CDUS46 KMTR 220836
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
136 AM PDT MON MAY 22 2017


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR MAY 21 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         77   1222 PM  92    2000  68      9       64
  MINIMUM         53   1159 PM  45    1974  52      1       54
                                      1962
                                      1899
  AVERAGE         65                        60      5       59

PRECIPITATION (IN)
  YESTERDAY        0.00          0.24 2006   0.01  -0.01     0.00
  MONTH TO DATE    T                         0.36  -0.36     0.05
  SINCE OCT 1     30.87                     20.22  10.65    17.23
  SINCE JAN 1     21.92                     12.86   9.06    12.44

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        0                         5     -5        6
  MONTH TO DATE   90                       131    -41       96
  SINCE MAR 1    522                       693   -171      466
  SINCE JUL 1   2099                      2499   -400     1864

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE   21                         0     21        8
  SINCE MAR 1     23                         6     17       28
  SINCE JAN 1     23                         6     17       28
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED  12   RESULTANT WIND DIRECTION  NW (300)
  HIGHEST WIND SPEED    26   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION     W (290)
  AVERAGE WIND SPEED    13.1


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    83           100 AM
 LOWEST     40          1200 PM
 AVERAGE    62

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   68        83      1954
 MINIMUM TEMPERATURE (F)   52        44      1952
                                             1909


SUNRISE AND SUNSET
MAY 22 2017...........SUNRISE   555 AM PDT   SUNSET   818 PM PDT
MAY 23 2017...........SUNRISE   554 AM PDT   SUNSET   819 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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