Climatological Report (Daily)
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977
CDUS46 KMTR 200825
CLISJC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
125 AM PDT SUN SEP 20 2026
...................................
...THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 19 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1893 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 77 2:52 PM 98 2000 81 -4 81
MINIMUM 58 11:59 PM 39 1893 57 1 62
AVERAGE 68 69 -1 72
PRECIPITATION (IN)
YESTERDAY 0.00 0.58 1977 0.01 -0.01 0.00
MONTH TO DATE 0.06 0.03 0.03 0.41
SINCE OCT 1 12.79 13.44 -0.65 9.72
SINCE JAN 1 7.43 9.29 -1.86 6.08
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 2 6 -4 1
COOLING
YESTERDAY 3 4 -1 7
MONTH TO DATE 99 89 10 124
SINCE SEP 1 99 89 10 124
SINCE JAN 1 623 532 91 473
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION NW (320)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION N (350)
AVERAGE WIND SPEED 5.8
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 86 12:00 AM
LOWEST 52 12:00 PM
AVERAGE 69
..........................................................
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 100 1939
MINIMUM TEMPERATURE (F) 57 40 1895
SUNRISE AND SUNSET
SEPTEMBER 20 2026.....SUNRISE 6:54 AM PDT SUNSET 7:07 PM PDT
SEPTEMBER 21 2026.....SUNRISE 6:55 AM PDT SUNSET 7:06 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$