489
CDUS46 KMTR 310838
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
138 AM PDT MON JUL 31 2023
...............................
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR JULY 30 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 74 2:52 PM 97 1977 73 1 70
MINIMUM 56 5:40 AM 45 1954 56 0 60
AVERAGE 65 64 1 65
PRECIPITATION (IN)
YESTERDAY 0.00 0.03 1966 0.00 0.00 0.00
MONTH TO DATE T 0.00 0.00 0.00
SINCE OCT 1 31.39 19.53 11.86 18.17
SINCE JAN 1 20.14 12.56 7.58 1.89
SNOWFALL (IN)
YESTERDAY MM 0.0
MONTH TO DATE MM
SINCE JUN 1 MM
SINCE JUL 1 MM
DEGREE DAYS
HEATING
YESTERDAY 0 2 -2 0
MONTH TO DATE 40 60 -20 57
SINCE JUN 1 118 157 -39 116
SINCE JUL 1 40 60 -20 57
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 22 30 -8 18
SINCE JUN 1 23 53 -30 63
SINCE JAN 1 28 73 -45 83
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION W (290)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 13.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 3:00 AM
LOWEST 49 3:00 PM
AVERAGE 70
......................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 97 1993
MINIMUM TEMPERATURE (F) 56 49 1953
1954
1956
SUNRISE AND SUNSET
JULY 31 2023..........SUNRISE 6:13 AM PDT SUNSET 8:19 PM PDT
AUGUST 1 2023........SUNRISE 6:13 AM PDT SUNSET 8:18 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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