967
CXUS56 KSGX 011014
CLMMYF

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
214 AM PST MON JAN 01 2024

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

...THE SAN DIEGO/MONTGOMERY FLD CA CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2023

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           81   12/05         MM      MM       83  12/26
                       12/15
LOWEST            43   12/02         MM      MM       39  12/14
                       12/03
                       12/10
                                                          12/17
                                                          12/19
AVG. MAXIMUM    70.0               67.3     2.7     65.5
AVG. MINIMUM    47.6               45.3     2.3     45.3
MEAN            58.8               56.3     2.5     55.4
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          0.65               1.61   -0.96     1.39
DAILY AVG.      0.02               0.05   -0.03     0.04
DAYS >= .01        6                7.1    -1.1        4
DAYS >= .10        3                3.3    -0.3        2
DAYS >= .50        0                1.1    -1.1        1
DAYS >= 1.00       0                0.4    -0.4        0
DAYS >= %-5.2F     0                                   0
DAYS >= %-5.2F     0                                   0
GREATEST
 24 HR. TOTAL   0.48   12/21 TO 12/22               0.93  12/11 TO 12/12
 STORM TOTAL    0.35                                0.68
 (MM/DD(HH))            MM


DEGREE DAYS
HEATING TOTAL    184                272     -88      291
 SINCE 7/1       256                439    -183       MM
COOLING TOTAL      0                  2      -2        2
 SINCE 1/1       888               1018    -130       MM

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

WIND (MPH)
AVERAGE WIND SPEED              3.6
RESULTANT WIND SPEED/DIRECTION   1/290
HIGHEST WIND SPEED/DIRECTION    24/240    DATE  12/21
HIGHEST GUST SPEED/DIRECTION    36/240    DATE  12/21

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.26
NUMBER OF DAYS FAIR           19
NUMBER OF DAYS PC             11
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     63

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       2
LIGHT RAIN                5     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      19     FOG W/VIS <= 1/4 MILE      8
HAZE                     13

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

$$