022
CDUS46 KMTR 210836
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
136 AM PDT THU SEP 21 2023
...............................
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 20 2023
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)
YESTERDAY
MAXIMUM 73 2:44 PM 93 1983 75 -2 74
1990
2015
MINIMUM 58 6:42 AM 48 1947 56 2 58
1954
1965
AVERAGE 66 65 1 66
PRECIPITATION (IN)
YESTERDAY 0.00 0.08 2005 0.01 -0.01 T
MONTH TO DATE T 0.03 -0.03 0.11
SINCE OCT 1 31.42 19.60 11.82 18.29
SINCE JAN 1 20.17 12.63 7.54 2.01
SNOWFALL (IN)
YESTERDAY MM 0.0
MONTH TO DATE T
SINCE SEP 1 T
SINCE JUL 1 T
DEGREE DAYS
HEATING
YESTERDAY 0 2 -2 0
MONTH TO DATE 0 24 -24 6
SINCE SEP 1 0 24 -24 6
SINCE JUL 1 47 126 -79 67
COOLING
YESTERDAY 1 2 -1 1
MONTH TO DATE 34 40 -6 88
SINCE SEP 1 34 40 -6 88
SINCE JAN 1 173 150 23 241
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SW (220)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 6.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 3:00 AM
LOWEST 53 2:00 PM
AVERAGE 70
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THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 95 2003
MINIMUM TEMPERATURE (F) 56 45 1955
SUNRISE AND SUNSET
SEPTEMBER 21 2023.....SUNRISE 6:56 AM PDT SUNSET 7:08 PM PDT
SEPTEMBER 22 2023.....SUNRISE 6:57 AM PDT SUNSET 7:07 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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