988
CXUS56 KSGX 131203
CLMMYF

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
403 AM PST TUE JAN 13 2026

...................................

...THE SAN DIEGO/MONTGOMERY FLD CA CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             90   12/01/1998
 LOW              32   12/24/1998
HIGHEST           82   12/10         MM      MM       81  12/07
                                                          12/18
LOWEST            42   12/29         MM      MM       41  12/12
AVG. MAXIMUM    70.4               67.3     3.1     68.5
AVG. MINIMUM    50.1               45.3     4.8     46.2
MEAN            60.2               56.3     3.9     57.4
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MAX >= 45    31                                  31
DAYS MIN <= 32     0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        6.31   2010
TOTALS          1.02               1.61   -0.59     0.02
DAILY AVG.      0.03               0.05   -0.02     0.00
DAYS >= .01        5                7.1    -2.1        2
DAYS >= .10        3                3.3    -0.3        0
DAYS >= .50        1                1.1    -0.1        0
DAYS >= 1.00       0                0.4    -0.4        0
DAYS >= %-5.2F     0                                   0
DAYS >= %-5.2F     0                                   0
GREATEST
 24 HR. TOTAL   0.52   12/24 TO 12/24               0.01  12/24 TO 12/24
                                                          12/12 TO 12/12
                                                          12/24 TO 12/24
 STORM TOTAL    0.52                                0.01
 (MM/DD(HH))            MM


DEGREE DAYS
HEATING TOTAL    148                272    -124      229
 SINCE 7/1       259                439    -180       MM
COOLING TOTAL      7                  2       5        0
 SINCE 1/1       926               1018     -92       MM

FREEZE DATES
RECORD
 EARLIEST     MM
 LATEST       MM
EARLIEST                        MM
LATEST                          MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              3.7
RESULTANT WIND SPEED/DIRECTION   1/320
HIGHEST WIND SPEED/DIRECTION    35/170    DATE  12/24
HIGHEST GUST SPEED/DIRECTION    51/190    DATE  12/24

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.31
NUMBER OF DAYS FAIR           20
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     65

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       3
LIGHT RAIN                6     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      21     FOG W/VIS <= 1/4 MILE     12
HAZE                     10

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$