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Climatological Report (Monthly)
Issued by NWS Jacksonville, FL

000
CXUS52 KJAX 011318
CLMSSI

CLIMATE REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
918 AM EDT SUN OCT 01 2023

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

...THE ST SIMONS ISLAND CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1940 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             98   09/05/1944
 LOW              49   09/30/1967
HIGHEST           97   09/06         92       5       94  09/22
LOWEST            65   09/19         62       3       60  09/29
                       09/23
AVG. MAXIMUM    87.7               85.8     1.9     85.7
AVG. MINIMUM    72.8               72.5     0.3     72.0
MEAN            80.2               79.1     1.1     78.8
DAYS MAX >= 90    10                3.7     6.3        4
DAYS MIN <= 32     0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       19.95   1953
 MINIMUM        0.09   1981
TOTALS          9.37               6.00    3.37     8.25
DAILY AVG.      0.31               0.20    0.11     0.28
DAYS >= .01       11               10.7     0.3       11
DAYS >= .10        7                7.5    -0.5       10
DAYS >= .50        4                4.0     0.0        6
DAYS >= 1.00       2                1.9     0.1        3
GREATEST
 24 HR. TOTAL   6.16   09/26 TO 09/27

SNOWFALL (INCHES)
RECORDS
 TOTAL             T   1938
TOTALS           0.0                0.0     0.0      0.0

DEGREE DAYS
HEATING TOTAL      0                  0       0        0
 SINCE 7/1         0                  0       0       MM
COOLING TOTAL    463                424      39      424
 SINCE 1/1      3207               2558     649       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.0
HIGHEST WIND SPEED/DIRECTION    26/270    DATE  09/12
HIGHEST GUST SPEED/DIRECTION    43/260    DATE  09/12

SKY COVER
AVERAGE SKY COVER           0.29

AVERAGE RH (PERCENT)     73

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             10     MIXED PRECIP               0
HEAVY RAIN               10     RAIN                      11
LIGHT RAIN               13     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                      0

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

$$