National Weather Service National Headquarters

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
CXUS56 KSGX 011014
CLMSNA

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

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

...THE JOHN WAYNE AIRPORT CA CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1999 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             90   12/12/2010
 LOW              36   12/31/2010
                       12/28/2003
                       12/27/2003
HIGHEST           79   12/05         67      12       80  12/26
                       12/16
LOWEST            46   12/10         47      -1       43  12/17
                                                          12/19
AVG. MAXIMUM    70.1               66.5     3.6     66.6
AVG. MINIMUM    52.5               48.3     4.2     50.1
MEAN            61.3               57.4     3.9     58.4
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        9.17   2010
 MINIMUM        0.01   2017
TOTALS          1.57               2.04   -0.47     1.66
DAILY AVG.      0.05               0.07   -0.02     0.09
DAYS >= .01        7                6.9     0.1        8
DAYS >= .10        5                3.4     1.6        2
DAYS >= .50        1                1.2    -0.2        1
DAYS >= 1.00       0                0.6    -0.6        0
DAYS >= %-5.2F     0                                   0
DAYS >= %-5.2F     0                                   0
GREATEST
 24 HR. TOTAL   0.76   12/21 TO 12/22               0.92  12/31 TO 12/31
 STORM TOTAL    0.50                                0.92
 (MM/DD(HH))            MM


DEGREE DAYS
HEATING TOTAL    110                238    -128      198
 SINCE 7/1       134                363    -229       MM
COOLING TOTAL      3                  3       0        0
 SINCE 1/1      1097               1076      21       MM

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

WIND (MPH)
AVERAGE WIND SPEED              3.0
RESULTANT WIND SPEED/DIRECTION   1/160
HIGHEST WIND SPEED/DIRECTION    17/050    DATE  12/09
HIGHEST GUST SPEED/DIRECTION    25/080    DATE  12/09

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.43
NUMBER OF DAYS FAIR           15
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     64

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                4     RAIN                       5
LIGHT RAIN                6     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      13     FOG W/VIS <= 1/4 MILE      0
HAZE                      8

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

$$