171
CXUS56 KSGX 011249
CLMMYF

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
449 AM PST WED JAN 01 2025

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

...THE SAN DIEGO/MONTGOMERY FLD CA CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2024...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2024

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   12/07         MM      MM       81  12/05
                       12/18
                                                          12/15
LOWEST            41   12/12         MM      MM        9  12/07
                                                          12/03
                                                          12/10
AVG. MAXIMUM    68.5               67.3     1.2     70.0
AVG. MINIMUM    46.2               45.3     0.9     46.4
MEAN            57.4               56.3     1.1     58.2
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        1

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        6.31   2010
TOTALS          0.02               1.61   -1.59     0.65
DAILY AVG.      0.00               0.05   -0.05     0.02
DAYS >= .01        2                7.1    -5.1        6
DAYS >= .10        0                3.3    -3.3        3
DAYS >= .50        0                1.1    -1.1        0
DAYS >= 1.00       0                0.4    -0.4        0
DAYS >= %-5.2F     0                                   0
DAYS >= %-5.2F     0                                   0
GREATEST
 24 HR. TOTAL   0.01   12/24 TO 12/24               0.48  12/21 TO 12/22
                       12/12 TO 12/12
                       12/24 TO 12/24
 STORM TOTAL    0.01                                0.35
 (MM/DD(HH))            MM


DEGREE DAYS
HEATING TOTAL    229                272     -43      203
 SINCE 7/1       401                439     -38       MM
COOLING TOTAL      0                  2      -2        0
 SINCE 1/1       940               1018     -78       MM

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

WIND (MPH)
AVERAGE WIND SPEED              3.6
RESULTANT WIND SPEED/DIRECTION   2/310
HIGHEST WIND SPEED/DIRECTION    17/300    DATE  12/21
HIGHEST GUST SPEED/DIRECTION    22/320    DATE  12/21

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.27
NUMBER OF DAYS FAIR           19
NUMBER OF DAYS PC             11
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     64

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                2     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     10
HAZE                     14

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

$$