Climatological Report (Monthly)
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
Versions:
1
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. $$