476
CXUS56 KSGX 010940
CLMFUL

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

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

...THE FULLERTON AIRPORT 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            113   09/06/2024
 LOW              54   09/30/2019
                       09/28/2013
                       11/28/2015
HIGHEST           97   09/02         85      12      113  09/06
LOWEST            63   09/29         62       1       57  09/30
                       09/30
AVG. MAXIMUM    85.1               85.4    -0.3     85.4
AVG. MINIMUM    66.7               64.6     2.1     64.5
MEAN            75.9               75.0     0.9     75.0
DAYS MAX >= 90     8                9.1    -1.1        8
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        2.37   1976
 MINIMUM        0.00   2021
TOTALS          0.05               0.14   -0.09        T
DAILY AVG.      0.00               0.00   -0.00        T
DAYS >= .01        2                0.8     1.2        0
DAYS >= .10        0                0.3    -0.3        0
DAYS >= .50        0                0.0     0.0        0
DAYS >= 1.00       0                0.0     0.0        0
DAYS >= %-5.2F     0                                   0
DAYS >= %-5.2F     0                                   0
GREATEST
 24 HR. TOTAL   0.04   09/18 TO 09/18                  T  09/19 TO 09/19
                                                          09/16 TO 09/16
                                                          09/19 TO 09/19
 STORM TOTAL    0.04                                0.00
 (MM/DD(HH))            MM


DEGREE DAYS
HEATING TOTAL      0                  0       0        0
 SINCE 7/1         0                  0       0       MM
COOLING TOTAL    335                300      35      307
 SINCE 1/1      1292               1323     -31       MM

FREEZE DATES
RECORD
 EARLIEST     MM
 LATEST       MM
EARLIEST                        12/31
LATEST                          MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              3.5
RESULTANT WIND SPEED/DIRECTION   2/190
HIGHEST WIND SPEED/DIRECTION    15/190    DATE  09/17
HIGHEST GUST SPEED/DIRECTION    23/150    DATE  09/17

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           17
NUMBER OF DAYS PC             10
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     66

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                3     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       9     FOG W/VIS <= 1/4 MILE      0
HAZE                      9

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

$$