Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KMTR 220828
CLISJC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
128 AM PDT FRI AUG 22 2025
...................................
...THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR AUGUST 21 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 91 3:05 PM 92 1969 82 9 83
MINIMUM 61 5:42 AM 44 1910 59 2 61
AVERAGE 76 70 6 72
PRECIPITATION (IN)
YESTERDAY 0.00 1.92 1968 0.00 0.00 0.00
MONTH TO DATE 0.00 0.03 -0.03 T
SINCE OCT 1 9.31 13.39 -4.08 17.06
SINCE JAN 1 5.67 9.24 -3.57 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 11 5 6 7
MONTH TO DATE 114 105 9 160
SINCE JUN 1 243 340 -97 663
SINCE JAN 1 284 391 -107 733
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION NW (320)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 6.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 81 12:00 AM
LOWEST 30 12:00 PM
AVERAGE 56
..........................................................
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 96 1999
MINIMUM TEMPERATURE (F) 59 43 1893
SUNRISE AND SUNSET
AUGUST 22 2025........SUNRISE 6:30 AM PDT SUNSET 7:50 PM PDT
AUGUST 23 2025........SUNRISE 6:31 AM PDT SUNSET 7:49 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$