220
CDUS46 KMTR 130838
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
138 AM PDT THU AUG 13 2026
...............................
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR AUGUST 12 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1927 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 74 2:40 PM 89 1958 73 1 68
1959
MINIMUM 57 5:30 AM 47 1946 56 1 57
AVERAGE 66 65 1 63
PRECIPITATION (IN)
YESTERDAY 0.00 T 1986 0.00 0.00 0.00
1988
1991
MONTH TO DATE 0.00 0.01 -0.01 0.00
SINCE OCT 1 19.59 19.54 0.05 16.11
SINCE JAN 1 10.74 12.57 -1.83 7.55
SNOWFALL (IN)
YESTERDAY MM 0.0
MONTH TO DATE T
SINCE JUN 1 T
SINCE JUL 1 T
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 2
MONTH TO DATE 5 22 -17 16
SINCE JUN 1 115 177 -62 228
SINCE JUL 1 55 80 -25 85
COOLING
YESTERDAY 1 1 0 0
MONTH TO DATE 10 12 -2 6
SINCE JUN 1 62 61 1 8
SINCE JAN 1 105 81 24 14
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION W (260)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 8.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 12:00 AM
LOWEST 51 2:00 PM
AVERAGE 69
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THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 89 1991
MINIMUM TEMPERATURE (F) 57 47 1946
SUNRISE AND SUNSET
AUGUST 13 2026........SUNRISE 6:24 AM PDT SUNSET 8:04 PM PDT
AUGUST 14 2026........SUNRISE 6:25 AM PDT SUNSET 8:03 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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