611
CXUS56 KSGX 010940
CLMSAN

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
240 AM PDT WED OCT 01 2025

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

...THE SAN DIEGO INTL AIRPORT CA CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1874 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            111   09/26/1963
 LOW              50   09/26/1907
                       09/19/1882
                       09/18/1882
HIGHEST           83   09/17         77       6       94  09/08
LOWEST            64   09/30         66      -2       61  09/17
                                                          09/21
                                                          09/30
AVG. MAXIMUM    77.0               77.2    -0.2     77.4
AVG. MINIMUM    67.1               66.2     0.9     66.9
MEAN            72.1               71.7     0.4     72.2
DAYS MAX >= 90     0                0.9    -0.9        3
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MAX >= 45    30                                  30
DAYS MIN <= 32     0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        2.58   1939
 MINIMUM        0.00   2020
TOTALS          0.46               0.12    0.34     0.02
DAILY AVG.      0.02               0.00    0.02     0.00
DAYS >= .01        3                0.9     2.1        1
DAYS >= .10        2                0.2     1.8        0
DAYS >= .50        0                0.1    -0.1        0
DAYS >= 1.00       0                0.0     0.0        0
DAYS >= %-5.2F     0                                   0
DAYS >= %-5.2F     0                                   0
GREATEST
 24 HR. TOTAL   0.45   09/17 TO 09/18               0.02  09/20 TO 09/20
 STORM TOTAL    0.23                                0.02
 (MM/DD(HH))            MM


DEGREE DAYS
HEATING TOTAL      0                  0       0        0
 SINCE 7/1         0                  1      -1       MM
COOLING TOTAL    220                201      19      219
 SINCE 1/1       652                761    -109       MM

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

WIND (MPH)
AVERAGE WIND SPEED              5.7
RESULTANT WIND SPEED/DIRECTION   4/290
HIGHEST WIND SPEED/DIRECTION    18/280    DATE  09/20
                                18/290          09/22
HIGHEST GUST SPEED/DIRECTION    27/210    DATE  09/10

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.56
NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC             21
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     77

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       2
LIGHT RAIN                4     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       8     FOG W/VIS <= 1/4 MILE      0
HAZE                      3

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

$$