672  
CDUS42 KEYW 270534  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST, FL  
1232 AM EST FRI DEC 27 2019  
 
   
...............................
 
 
   
..THE MARATHON CLIMATE SUMMARY FOR DECEMBER 26 2019
 
 
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)  
YESTERDAY  
MAXIMUM 81 309 PM 84 2016 75 6 79  
2015  
MINIMUM 70 812 AM 39 1983 65 5 71  
AVERAGE 76 70 6 75  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.04 1957 0.06 -0.06 0.01  
MONTH TO DATE 4.26 1.74 2.52 0.93  
SINCE DEC 1 4.26 1.74 2.52 0.93  
SINCE JAN 1 33.42 45.89 -12.47 31.50  
 
SNOWFALL (IN)  
YESTERDAY 0.0  
MONTH TO DATE 0.0  
SINCE DEC 1 0.0  
SINCE JUL 1 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 0 19 -19 4  
SINCE DEC 1 0 19 -19 4  
SINCE JUL 1 0 20 -20 8  
 
COOLING  
YESTERDAY 11 6 5 10  
MONTH TO DATE 254 199 55 241  
SINCE DEC 1 254 199 55 241  
SINCE JAN 1 6130 4963 1167 5376    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 10.6  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97  
LOWEST 69  
AVERAGE 83  
   
......................................................
 
 
 
THE MARATHON CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 85 2016  
2007  
1971  
MINIMUM TEMPERATURE (F) 65 40 1983  
 
 
SUNRISE AND SUNSET  
DECEMBER 27 2019......SUNRISE 707 AM EST SUNSET 544 PM EST  
DECEMBER 28 2019......SUNRISE 707 AM EST SUNSET 544 PM EST  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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