174
CXUS52 KJAX 011413
CLMSSI
CLIMATE REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1008 AM EDT MON OCT 1 2018
...............................
...THE ST SIMONS ISLAND CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2018...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1948 TO 2018
WEATHER OBSERVED NORMAL DEPART
VALUE DATE(S) VALUE FROM
NORMAL
............................................
TEMPERATURE (F)
RECORD
HIGH 97 09/16/1972
LOW 49 09/30/1967
HIGHEST 96 09/16 85 11
LOWEST 73 09/22 72 1
AVG. MAXIMUM 89.9 84.7 5.2
AVG. MINIMUM 77.1 71.6 5.5
MEAN 83.5 78.1 5.4
DAYS MAX >= 90 12 3.0 9.0
DAYS MAX <= 32 0 0.0 0.0
DAYS MIN <= 32 0 0.0 0.0
DAYS MIN <= 0 0 0.0 0.0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 21.19 1962
MINIMUM 0.09 1981
TOTALS 3.57 5.76 -2.19
DAILY AVG. 0.12 0.19 -0.07
DAYS >= .01 13 10.4 2.6
DAYS >= .10 10 7.5 2.5
DAYS >= .50 3 3.9 -0.9
DAYS >= 1.00 0 1.9 -1.9
GREATEST
24 HR. TOTAL 0.87 09/03 TO 09/03
STORM TOTAL MM
(MM/DD(HH)) MM
SNOWFALL (INCHES)
RECORDS
TOTAL MM MM
24 HR TOTAL MM
TOTALS 0.0 0.0 0.0
LIQUID EQUIV 0.00 0.00 0.00
SINCE 7/1 0.0 0.0 0.0
LIQUID 7/1 0.00
DAYS >= TRACE 0 0.0 0.0
DAYS >= 1.0 0 0.0 0.0
GREATEST
SNOW DEPTH 0 MM
24 HR TOTAL 0.0 09/30 TO 09/30
STORM TOTAL MM
(MM/DD(HH)) MM
DEGREE_DAYS
HEATING TOTAL 0 0 0
SINCE 7/1 0 0 0
COOLING TOTAL 563 395 168
SINCE 1/1 2795 2371 424
FREEZE DATES
RECORD
EARLIEST 11/03/1954
LATEST 03/31/1964
EARLIEST 12/20
LATEST 02/14
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WIND (MPH)
AVERAGE WIND SPEED 7.8
HIGHEST WIND SPEED/DIRECTION 31/060 DATE 09/18
HIGHEST GUST SPEED/DIRECTION 58/040 DATE 09/18
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.20
NUMBER OF DAYS FAIR 26
NUMBER OF DAYS PC 4
NUMBER OF DAYS CLOUDY 0
AVERAGE RH (PERCENT) 73
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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