619
CXUS56 KSGX 010940
CLMMYF

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

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

...THE SAN DIEGO/MONTGOMERY FLD CA CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            107   09/14/2012
                       09/27/2010
 LOW              52   09/30/2019
HIGHEST           90   09/16         MM      MM      103  09/08
LOWEST            61   09/29         MM      MM       55  09/17
AVG. MAXIMUM    80.4               81.4    -1.0     80.4
AVG. MINIMUM    65.9               63.6     2.3     63.8
MEAN            73.2               72.5     0.7     72.1
DAYS MAX >= 90     1                4.1    -3.1        7
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        1.08   2014
TOTALS          0.28               0.17    0.11     0.02
DAILY AVG.      0.01               0.01    0.00     0.00
DAYS >= .01        3                1.3     1.7        1
DAYS >= .10        1                0.4     0.6        0
DAYS >= .50        0                0.1    -0.1        0
DAYS >= 1.00       0                0.1    -0.1        0
DAYS >= %-5.2F     0                                   0
DAYS >= %-5.2F     0                                   0
GREATEST
 24 HR. TOTAL   0.26   09/17 TO 09/18               0.02  09/20 TO 09/20
 STORM TOTAL    0.21                                0.02
 (MM/DD(HH))            MM


DEGREE DAYS
HEATING TOTAL      0                  2      -2        1
 SINCE 7/1         0                  1      -1       MM
COOLING TOTAL    253                227      26      221
 SINCE 1/1       833                873     -40       MM

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

WIND (MPH)
AVERAGE WIND SPEED              5.5
RESULTANT WIND SPEED/DIRECTION   4/290
HIGHEST WIND SPEED/DIRECTION    20/340    DATE  09/17
HIGHEST GUST SPEED/DIRECTION    27/340    DATE  09/17

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.39
NUMBER OF DAYS FAIR           14
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY          3

AVERAGE RH (PERCENT)     72

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       1
LIGHT RAIN                5     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      18     FOG W/VIS <= 1/4 MILE      2
HAZE                      5

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

$$