Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KMTR 210033
CLISJC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
533 PM PDT WED AUG 20 2025
...................................
...THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR AUGUST 20 2025...
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 90 2:28 PM 98 1964 82 8 89
MINIMUM 57 5:08 AM 42 1893 59 -2 59
AVERAGE 74 70 4 74
PRECIPITATION (IN)
TODAY 0.00 0.50 1997 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)
TODAY MM 0.0 1947
MONTH TO DATE T
SINCE JUN 1 T
SINCE JUL 1 T
DEGREE DAYS
HEATING
TODAY 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
TODAY 9 5 4 9
MONTH TO DATE 103 100 3 153
SINCE JUN 1 232 335 -103 656
SINCE JAN 1 273 386 -113 726
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION NW (320)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 4.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 83 2:00 AM
LOWEST 30 1:00 PM
AVERAGE 57
..........................................................
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 92 1969
MINIMUM TEMPERATURE (F) 59 44 1910
SUNRISE AND SUNSET
AUGUST 20 2025........SUNRISE 6:29 AM PDT SUNSET 7:53 PM PDT
AUGUST 21 2025........SUNRISE 6:29 AM PDT SUNSET 7:51 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$