840
CDUS46 KMTR 220038
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
438 PM PST THU DEC 21 2023
...............................
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR DECEMBER 21 2023
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1927 TO 2023
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 62 3:51 PM 68 1999 58 4 54
MINIMUM 53 8:04 AM 28 1990 44 9 41
AVERAGE 58 51 7 48
PRECIPITATION (IN)
TODAY T 1.73 1945 0.14 -0.14 0.00
MONTH TO DATE 2.52 2.76 -0.24 3.43
SINCE OCT 1 3.94 5.59 -1.65 5.02
SINCE JAN 1 24.14 18.26 5.88 7.19
SNOWFALL (IN)
TODAY MM 0.0
MONTH TO DATE T
SINCE DEC 1 T
SINCE JUL 1 T
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 7 14 -7 17
MONTH TO DATE 182 279 -97 338
SINCE DEC 1 182 279 -97 338
SINCE JUL 1 405 787 -382 863
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 280 201 79 280
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION E (90)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION SE (150)
AVERAGE WIND SPEED 3.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 8:00 AM
LOWEST 67 2:00 PM
AVERAGE 77
......................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 58 68 1999
MINIMUM TEMPERATURE (F) 44 27 1990
SUNRISE AND SUNSET
DECEMBER 21 2023......SUNRISE 7:21 AM PST SUNSET 4:55 PM PST
DECEMBER 22 2023......SUNRISE 7:21 AM PST SUNSET 4:55 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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