504  
CXUS52 KKEY 011343  
CLMMTH  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE KEY WEST, FL  
942 AM EDT WED JUL 1 2020  
   
...............................
 
 
   
..THE MARATHON CLIMATE SUMMARY FOR THE MONTH OF JUNE 2020
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1950 TO 2020  
 
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S  
VALUE DATE(S) VALUE FROM VALUE DATE(S)  
NORMAL    
............................................................
 
 
TEMPERATURE (F)  
RECORD  
HIGH 99 06/17/1972  
LOW 65 06/07/2008  
06/01/1955  
HIGHEST 94 06/30 98 06/08  
06/29  
06/27  
LOWEST 74 06/15 74 06/28  
AVG. MAXIMUM 90.3 90.4 -0.1 93.8  
AVG. MINIMUM 80.6 79.2 1.4 82.2  
MEAN 85.4 84.8 0.6 88.0  
DAYS MAX >= 90 19 17.5 1.5 29  
DAYS MAX <= 32 0 0.0 0.0 0  
DAYS MIN <= 32 0 0.0 0.0 0  
DAYS MIN <= 0 0 0.0 0.0 0  
 
PRECIPITATION (INCHES)  
RECORD  
MAXIMUM 13.67 1969  
MINIMUM 0.05 1998  
TOTALS 1.48 5.61 -4.13 3.52  
DAILY AVG. 0.05 0.19 -0.14 0.12  
DAYS >= .01 11 5  
DAYS >= .10 3 5  
DAYS >= .50 0 2  
DAYS >= 1.00 0 2  
GREATEST  
24 HR. TOTAL 0.40 06/15 TO 06/15  
 
SNOWFALL (INCHES)  
TOTALS 0.0 0.0 0.0 0.0  
SINCE 7/1 0.0 0.0 0.0 0.0  
 
DEGREE_DAYS  
HEATING TOTAL 0 0 0 0  
SINCE 7/1 20 81 -61 18  
COOLING TOTAL 622 594 28 693  
SINCE 1/1 2614 2137 477 2938    
.............................................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 7.3  
HIGHEST WIND SPEED/DIRECTION 26/030 DATE 06/15  
HIGHEST GUST SPEED/DIRECTION 34/030 DATE 06/15  
 
SKY COVER  
POSSIBLE SUNSHINE (PERCENT) MM  
AVERAGE SKY COVER 0.20  
NUMBER OF DAYS FAIR 28  
NUMBER OF DAYS PC 2  
NUMBER OF DAYS CLOUDY 0  
 
AVERAGE RH (PERCENT) 76  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
THUNDERSTORM 9 MIXED PRECIP 0  
HEAVY RAIN 4 RAIN 3  
LIGHT RAIN 13 FREEZING RAIN 0  
LT FREEZING RAIN 0 HAIL 0  
HEAVY SNOW 0 SNOW 0  
LIGHT SNOW 0 SLEET 0  
FOG 9 FOG W/VIS <= 1/4 MILE 0  
HAZE 2  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
MARATHON DAILY RECORDS, JUNE 2020 AND YEAR-TO-DATE  
 
RECORD JUN 2020 2020 YTD  
====== ======== ========  
MAXIMUM TEMPERATURE 2 17  
COOL MAXIMUM TEMPERATURE 0 0  
WARM MINIMUM TEMPERATURE 7 25  
MINIMUM TEMPERATURE 0 0  
RAINFALL 0 4  
 
TOP 10 WARMEST MONTHLY AVERAGE TEMPERATURES FOR JUNE  
 
RANKING YEAR AVERAGE (DEG F)  
======= ==== ===============  
1 2019 88.0  
2 2010 86.7  
3 1998 86.5  
4 2004 86.3  
5 2011 85.7  
6 2020 85.4  
2008 85.4  
8 2013 85.3  
9 2006 85.1  
10 2018 84.8  
 
ROSS  
 
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