331  
CDUS42 KKEY 170528  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
128 AM EDT WED MAY 17 2023  
   
...............................
 
 
   
..THE MARATHON CLIMATE SUMMARY FOR MAY 16 2023
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1950 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 91 1255 PM 92 1985 88 3 89  
MINIMUM 77 618 AM 67 1951 76 1 77  
AVERAGE 84 82 2 83  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.34 2019 0.10 -0.10 0.00  
MONTH TO DATE T 1.51 -1.51 1.02  
SINCE MAR 1 3.93 4.95 -1.02 2.98  
SINCE JAN 1 5.41 8.29 -2.88 5.21  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 5 -5 0  
SINCE JUL 1 44 71 -27 30  
 
COOLING  
YESTERDAY 19 17 2 18  
MONTH TO DATE 281 253 28 273  
SINCE MAR 1 1250 954 296 1158  
SINCE JAN 1 1920 1360 560 1634    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 3.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79  
LOWEST 56  
AVERAGE 68  
   
......................................................
 
 
THE MARATHON CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 94 2010  
MINIMUM TEMPERATURE (F) 76 63 1951  
 
SUNRISE AND SUNSET  
MAY 17 2023...........SUNRISE 640 AM EDT SUNSET 802 PM EDT  
MAY 18 2023...........SUNRISE 639 AM EDT SUNSET 803 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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