150  
CXUS52 KJAX 111246 RRA  
CLMSSI  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE JACKSONVILLE FL  
926 AM EDT SUN JUL 1 2018  
   
...............................
 
 
   
..THE ST SIMONS ISLAND CLIMATE SUMMARY FOR THE MONTH OF JUNE 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 103 06/03/1985  
LOW 58 06/02/1972  
06/03/1956  
HIGHEST 98 06/21 87 11  
LOWEST 68 06/05 72 -4  
AVG. MAXIMUM 90.5 87.5 3.0  
AVG. MINIMUM 74.5 73.1 1.4  
MEAN 82.5 80.3 2.2  
DAYS MAX >= 90 19 8.7 10.3  
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 15.73 1999  
MINIMUM 0.75 1970  
TOTALS 3.52 4.84 -1.32  
DAILY AVG. 0.12 0.16 -0.04  
DAYS >= .01 11 10.3 0.7  
DAYS >= .10 7 6.8 0.2  
DAYS >= .50 2 2.6 -0.6  
DAYS >= 1.00 1 1.4 -0.4  
GREATEST  
24 HR. TOTAL 1.30 06/13 TO 06/13  
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 0.2 -0.2  
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 06/30 TO 06/30  
STORM TOTAL MM  
(MM/DD(HH)) MM  
 
DEGREE_DAYS  
HEATING TOTAL 0 0 0  
SINCE 7/1 1296 1488 -192  
COOLING TOTAL 533 459 74  
SINCE 1/1 1084 901 183  
 
FREEZE DATES  
RECORD  
EARLIEST 11/03/1954  
LATEST 03/31/1964  
EARLIEST 01/01 12/20  
LATEST 01/24 02/14    
.............................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 7.5  
HIGHEST WIND SPEED/DIRECTION 31/220 DATE 06/22  
HIGHEST GUST SPEED/DIRECTION 39/220 DATE 06/22  
 
SKY COVER  
POSSIBLE SUNSHINE (PERCENT) MM  
AVERAGE SKY COVER 0.10  
NUMBER OF DAYS FAIR 28  
NUMBER OF DAYS PC 2  
NUMBER OF DAYS CLOUDY 0  
 
AVERAGE RH (PERCENT) 72  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
0  
5  
0  
0  
0  
0  
0  
HAZE 4  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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