Climatological Report (Daily)
Issued by NWS
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CDUS46 KMTR 170828
CLISJC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
128 AM PDT SUN AUG 17 2025
...................................
...THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR AUGUST 16 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1893 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 78 3:29 PM 100 2020 82 -4 85
MINIMUM 62 4:36 AM 42 1911 59 3 60
AVERAGE 70 70 0 73
PRECIPITATION (IN)
YESTERDAY 0.00 0.01 2020 0.00 0.00 0.00
MONTH TO DATE 0.00 0.02 -0.02 T
SINCE OCT 1 9.31 13.38 -4.07 17.06
SINCE JAN 1 5.67 9.23 -3.56 13.63
SNOWFALL (IN)
YESTERDAY MM 0.0 1947
MONTH TO DATE T
SINCE JUN 1 T
SINCE JUL 1 T
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 24 28 -4 0
SINCE JUL 1 1 4 -3 0
COOLING
YESTERDAY 5 5 0 8
MONTH TO DATE 82 80 2 122
SINCE JUN 1 211 315 -104 625
SINCE JAN 1 252 366 -114 695
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION N (340)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 8.4
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 84 6:00 AM
LOWEST 60 5:00 PM
AVERAGE 72
..........................................................
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 99 1939
MINIMUM TEMPERATURE (F) 59 44 1893
SUNRISE AND SUNSET
AUGUST 17 2025........SUNRISE 6:26 AM PDT SUNSET 7:57 PM PDT
AUGUST 18 2025........SUNRISE 6:27 AM PDT SUNSET 7:55 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$