659
CDUS46 KMTR 180832
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
132 AM PDT MON SEP 18 2023
...............................
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 17 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 75 12:26 PM 94 1984 75 0 69
MINIMUM 61 6:19 AM 50 1945 56 5 57
1946
1988
AVERAGE 68 65 3 63
PRECIPITATION (IN)
YESTERDAY 0.00 0.28 1982 0.00 0.00 0.00
MONTH TO DATE T 0.02 -0.02 0.00
SINCE OCT 1 31.42 19.59 11.83 18.18
SINCE JAN 1 20.17 12.62 7.55 1.90
SNOWFALL (IN)
YESTERDAY MM 0.0
MONTH TO DATE T
SINCE SEP 1 T
SINCE JUL 1 T
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 2
MONTH TO DATE 0 19 -19 6
SINCE SEP 1 0 19 -19 6
SINCE JUL 1 47 121 -74 67
COOLING
YESTERDAY 3 2 1 0
MONTH TO DATE 28 34 -6 86
SINCE SEP 1 28 34 -6 86
SINCE JAN 1 167 144 23 239
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION W (260)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 8.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 81 2:00 AM
LOWEST 53 12:00 PM
AVERAGE 67
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THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 93 2009
MINIMUM TEMPERATURE (F) 56 46 1955
SUNRISE AND SUNSET
SEPTEMBER 18 2023.....SUNRISE 6:54 AM PDT SUNSET 7:13 PM PDT
SEPTEMBER 19 2023.....SUNRISE 6:55 AM PDT SUNSET 7:11 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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