552  
CDUS42 KKEY 162020  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST, FL  
420 PM EDT MON SEP 16 2019  
 
   
...............................
 
 
   
..THE MARATHON CLIMATE SUMMARY FOR SEPTEMBER 16 2019
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1950 TO 2019  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 92R 149 PM 92 2018 89 3 92  
2007  
2006  
MINIMUM 83 356 AM 71 1965 79 4 81  
1952  
AVERAGE 88 84 4 87  
 
PRECIPITATION (IN)  
TODAY 0.00 3.01 1996 0.31 -0.31 0.00  
MONTH TO DATE 1.40 4.36 -2.96 1.43  
SINCE SEP 1 1.40 4.36 -2.96 1.43  
SINCE JAN 1 23.35 33.18 -9.83 26.26  
 
SNOWFALL (IN)  
TODAY 0.0  
MONTH TO DATE 0.0  
SINCE SEP 1 0.0  
SINCE JUL 1 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 23 19 4 22  
MONTH TO DATE 338 307 31 305  
SINCE SEP 1 338 307 31 305  
SINCE JAN 1 4624 3693 931 3894    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 8.9  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88  
LOWEST 64  
AVERAGE 76  
   
......................................................
 
 
 
THE MARATHON CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 93 1951  
MINIMUM TEMPERATURE (F) 79 71 1957  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 16 2019.....SUNRISE 711 AM EDT SUNSET 727 PM EDT  
SEPTEMBER 17 2019.....SUNRISE 711 AM EDT SUNSET 726 PM EDT  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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