National Weather Service Text Product
AFOS product CLISFO
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLISFO
Product Timestamp: 2016-12-20 08:45 UTC
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418
CDUS46 KMTR 200845
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1245 AM PST TUE DEC 20 2016
...................................
...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR DECEMBER 19 2016...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1927 TO 2016
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 55 243 PM 68 1999 56 -1 55
MINIMUM 36 440 AM 32 1965 44 -8 49
AVERAGE 46 50 -4 52
PRECIPITATION (IN)
YESTERDAY 0.00 1.81 1952 0.14 -0.14 0.04
MONTH TO DATE 3.98 2.29 1.69 1.82
SINCE OCT 1 8.30 5.62 2.68 3.24
SINCE JAN 1 20.74 18.91 1.83 6.89
SNOWFALL (IN)
YESTERDAY 0.0 0.0
MONTH TO DATE 0.0
SINCE DEC 1 0.0
SINCE JUL 1 0.0
DEGREE DAYS
HEATING
YESTERDAY 19 15 4 13
MONTH TO DATE 245 265 -20 235
SINCE DEC 1 245 265 -20 235
SINCE JUL 1 659 829 -170 592
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 142 164 -22 327
..................................................................
WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION NE (60)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 5.5
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 85 500 AM
LOWEST 41 200 PM
AVERAGE 63
..........................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 56 69 1999
1887
MINIMUM TEMPERATURE (F) 44 31 1965
SUNRISE AND SUNSET
DECEMBER 20 2016......SUNRISE 721 AM PST SUNSET 454 PM PST
DECEMBER 21 2016......SUNRISE 721 AM PST SUNSET 455 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$