Climatological Report (Daily)
Issued by NWS
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CDUS46 KMTR 310835
CLISJC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
135 AM PDT SUN AUG 31 2025
...................................
...THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR AUGUST 30 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 3:24 PM 98 1968 82 9 79
MINIMUM 59 6:03 AM 43 1895 58 1 62
AVERAGE 75 70 5 71
PRECIPITATION (IN)
YESTERDAY 0.00 0.71 1896 0.01 -0.01 0.00
MONTH TO DATE 0.00 0.05 -0.05 T
SINCE OCT 1 9.31 13.41 -4.10 17.06
SINCE JAN 1 5.67 9.26 -3.59 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 10 5 5 6
MONTH TO DATE 166 150 16 231
SINCE JUN 1 295 385 -90 734
SINCE JAN 1 336 436 -100 804
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION NW (330)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 4.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 1:00 AM
LOWEST 18 2:00 PM
AVERAGE 53
..........................................................
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 95 1943
2005
2017
MINIMUM TEMPERATURE (F) 58 46 1895
1903
1905
SUNRISE AND SUNSET
AUGUST 31 2025........SUNRISE 6:38 AM PDT SUNSET 7:37 PM PDT
SEPTEMBER 1 2025.....SUNRISE 6:39 AM PDT SUNSET 7:36 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$