104
CDUS46 KMTR 180028
CLIHWD
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
428 PM PST WED DEC 17 2025
...............................
..THE HAYWARD AIRPORT CLIMATE SUMMARY FOR DECEMBER 17 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 66 1:32 PM 68 2017 59 7 57
MINIMUM 53 2:47 AM 34 2008 43 10 47
2016
AVERAGE 60 51 9 52
PRECIPITATION (IN)
TODAY 0.21 0.00
MONTH TO DATE 0.21 2.69
SINCE OCT 1 5.44 5.02
SINCE JAN 1 12.99 22.02
DEGREE DAYS
HEATING
TODAY 5 13
MONTH TO DATE 259 168
SINCE DEC 1 259 168
SINCE JUL 1 587 451
COOLING
TODAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 295 713
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION SE (150)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 4.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 9:00 AM
LOWEST 77 12:00 AM
AVERAGE 89
......................................................
THE HAYWARD AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 59 69 2023
MINIMUM TEMPERATURE (F) 43 32 2016
SUNRISE AND SUNSET
DECEMBER 17 2025......SUNRISE 7:18 AM PST SUNSET 4:52 PM PST
DECEMBER 18 2025......SUNRISE 7:18 AM PST SUNSET 4:52 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page