979
CXUS56 KSGX 011249
CLMSDM

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

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

...THE SAN DIEGO/BROWN CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2024...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1997 TO 2024

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             87   12/12/2010
                       12/03/1958
                       07/28/1995
 LOW              29   12/09/1960
                       12/29/1954
HIGHEST           83   12/07         MM      MM       83
LOWEST            36   12/21         MM      MM       38
AVG. MAXIMUM    69.2               66.7     2.5     70.5
AVG. MINIMUM    43.6               43.8    -0.2     45.3
MEAN            56.4               55.3     1.1     57.9
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                0.2    -0.2        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        4.94   2019
TOTALS          0.02               1.82   -1.80     0.76
DAILY AVG.      0.00               0.06   -0.06     0.02
DAYS >= .01        1                6.9    -5.9        5
DAYS >= .10        0                3.1    -3.1        2
DAYS >= .50        0                0.9    -0.9        0
DAYS >= 1.00       0                0.5    -0.5        0
DAYS >= %-5.2F     0                                   0
DAYS >= %-5.2F     0                                   0
GREATEST
 24 HR. TOTAL   0.02   12/25 TO 12/25               0.46  12/22 TO 12/22
 STORM TOTAL    0.02                                0.46
 (MM/DD(HH))            MM


DEGREE DAYS
HEATING TOTAL    260                304     -44      214
 SINCE 7/1       421                524    -103       MM
COOLING TOTAL      0                  2      -2        0
 SINCE 1/1       864                734     130       MM

FREEZE DATES
RECORD
 EARLIEST     MM
 LATEST       MM
EARLIEST                        MM
LATEST                          01/02
................................................................

WIND (MPH)
AVERAGE WIND SPEED              4.0
RESULTANT WIND SPEED/DIRECTION   1/130
HIGHEST WIND SPEED/DIRECTION    24/120    DATE  12/10
HIGHEST GUST SPEED/DIRECTION    32/130    DATE  12/10

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.19
NUMBER OF DAYS FAIR           23
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     66

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                2     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      27     FOG W/VIS <= 1/4 MILE     10
HAZE                     30

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

$$