276
CDUS46 KSGX 180032
CLISDM
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
432 PM PST WED DEC 17 2025
...............................
..THE SAN DIEGO/BROWN CLIMATE SUMMARY FOR DECEMBER 17 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1997 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 67 2:32 PM 79 1999 66 1 71
MINIMUM 43 4:09 AM 35 2001 43 0 40
AVERAGE 55 55 0 56
PRECIPITATION (IN)
TODAY 0.00 1.70 2008 0.06 -0.06 0.00
MONTH TO DATE 0.00 0.97 -0.97 T
SINCE JUL 1 2.89 2.47 0.42 0.18
SINCE OCT 1 2.37 2.24 0.13 0.08
SINCE JAN 1 6.89 9.38 -2.49 11.17
DEGREE DAYS
HEATING
TODAY 10 10 0 9
MONTH TO DATE 105 163 -58 125
SINCE DEC 1 105 163 -58 125
SINCE JUL 1 210 384 -174 286
COOLING
TODAY 0 0 0 0
MONTH TO DATE 3 0 3 0
SINCE DEC 1 3 0 3 0
SINCE JAN 1 811 732 79 864
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION E (100)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 2.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 12:00 AM
LOWEST 60 11:00 AM
AVERAGE 80
......................................................
THE SAN DIEGO/BROWN CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 80 2004
MINIMUM TEMPERATURE (F) 43 35 2001
SUNRISE AND SUNSET
DECEMBER 17 2025......SUNRISE 6:44 AM PST SUNSET 4:45 PM PST
DECEMBER 18 2025......SUNRISE 6:44 AM PST SUNSET 4:45 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