680  
CDUS42 KKEY 202120  
CLIMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST FL  
420 PM EST WED DEC 20 2023  
   
...............................  
 
   
..THE MARATHON CLIMATE SUMMARY FOR DECEMBER 20 2023  
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM MM MM 87 2018 78 MM 81  
MINIMUM 62 656 AM 49 1950 67 -5 69  
1996  
AVERAGE MM 72 MM 75  
 
PRECIPITATION (IN)  
TODAY 0.00 1.09 2022 0.08 -0.08 1.09  
MONTH TO DATE 3.37 1.55 1.82 2.81  
SINCE DEC 1 3.37 1.55 1.82 2.81  
SINCE JAN 1 47.35 39.07 8.28 34.30  
 
DEGREE DAYS  
HEATING  
TODAY MM 1 MM 0  
MONTH TO DATE 1 6 -5 0  
SINCE DEC 1 1 6 -5 0  
SINCE JUL 1 1 7 -6 0  
 
COOLING  
TODAY MM 8 MM 10  
MONTH TO DATE 161 177 -16 251  
SINCE DEC 1 161 177 -16 251  
SINCE JAN 1 6031 5048 983 5733    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 13.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86  
LOWEST 71  
AVERAGE 79  
   
......................................................  
 
THE MARATHON CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 87 1986  
MINIMUM TEMPERATURE (F) 67 47 1954  
 
SUNRISE AND SUNSET  
DECEMBER 20 2023......SUNRISE 704 AM EST SUNSET 540 PM EST  
DECEMBER 21 2023......SUNRISE 704 AM EST SUNSET 541 PM EST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab FL Page
Main Text Page