Climatological Report (Daily)
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799
CDUS46 KMTR 140837
CLISJC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
137 AM PDT SUN SEP 14 2025
...................................
...THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 13 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 73 2:41 PM 102 1971 81 -8 89
MINIMUM 61 11:51 PM 37 1894 58 3 59
AVERAGE 67 69 -2 74
PRECIPITATION (IN)
YESTERDAY 0.00 1.43 1918 0.00 0.00 0.00
MONTH TO DATE 0.41 0.01 0.40 0.00
SINCE OCT 1 9.72 13.42 -3.70 17.06
SINCE JAN 1 6.08 9.27 -3.19 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 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JUL 1 1 6 -5 0
COOLING
YESTERDAY 2 5 -3 9
MONTH TO DATE 72 65 7 107
SINCE SEP 1 72 65 7 107
SINCE JAN 1 421 508 -87 917
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION N (340)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 6.0
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 87 12:00 AM
LOWEST 59 4:00 PM
AVERAGE 73
..........................................................
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 104 1971
MINIMUM TEMPERATURE (F) 58 39 1894
SUNRISE AND SUNSET
SEPTEMBER 14 2025.....SUNRISE 6:49 AM PDT SUNSET 7:16 PM PDT
SEPTEMBER 15 2025.....SUNRISE 6:50 AM PDT SUNSET 7:15 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$