541
CDUS46 KMTR 270831
CLISJC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
131 AM PDT SAT SEP 27 2025
...............................
..THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 26 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 84 2:34 PM 98 1963 80 4 82
2016
MINIMUM 61 6:24 AM 38 1893 56 5 61
AVERAGE 73 68 5 72
PRECIPITATION (IN)
YESTERDAY 0.00 0.25 1986 0.01 -0.01 0.00
MONTH TO DATE 0.44 0.05 0.39 0.00
SINCE OCT 1 9.75 13.46 -3.71 17.06
SINCE JAN 1 6.11 9.31 -3.20 13.63
SNOWFALL (IN)
YESTERDAY MM 0.0 1947
MONTH TO DATE T
SINCE SEP 1 T
SINCE JUL 1 T
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 0 4 -4 0
SINCE SEP 1 0 4 -4 0
SINCE JUL 1 1 10 -9 0
COOLING
YESTERDAY 8 4 4 7
MONTH TO DATE 188 117 71 178
SINCE SEP 1 188 117 71 178
SINCE JAN 1 537 560 -23 988
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION SW (220)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION S (160)
AVERAGE WIND SPEED 5.5
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 84 2:00 AM
LOWEST 40 2:00 PM
AVERAGE 62
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THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 98 1921
MINIMUM TEMPERATURE (F) 56 41 1893
SUNRISE AND SUNSET
SEPTEMBER 27 2025.....SUNRISE 7:00 AM PDT SUNSET 6:56 PM PDT
SEPTEMBER 28 2025.....SUNRISE 7:01 AM PDT SUNSET 6:55 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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