914  
CXCA52 TJSJ 010437  
CLMISX  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1237 AM AST FRI JAN 01 2021  
   
...............................
 
 
...THE HENRY E. ROHLSEN AP/ST CROIX CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2020...  
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1951 TO 2020  
 
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S  
VALUE DATE(S) VALUE FROM VALUE  
NORMAL    
..........................................................
 
 
TEMPERATURE (F)  
RECORD  
HIGH 92 12/27/1995  
LOW 61 12/29/1982  
12/24/1964  
HIGHEST 88 12/04 88 0 89  
LOWEST 69 12/23 77 -8 72  
12/26  
12/27  
AVG. MAXIMUM 84.8 84.7 0.1 87.5  
AVG. MINIMUM 71.7 73.4 -1.7 75.0  
MEAN 78.2 79.0 -0.8 81.2  
DAYS MAX >= 90 0 0.0 0.0 0  
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 14.03 1960  
MINIMUM 0.37 2010  
TOTALS 2.09 2.97 -0.88 1.78  
DAILY AVG. 0.07 0.09 -0.02 0.06  
DAYS >= .01 12 17.3 -5.3 15  
DAYS >= .10 3 7.5 -4.5 5  
DAYS >= .50 1 1.3 -0.3 1  
DAYS >= 1.00 1 0.5 0.5 0  
GREATEST  
24 HR. TOTAL 1.22 12/06 TO 12/07  
STORM TOTAL 1.20  
 
DEGREE DAYS  
HEATING TOTAL 0 0 0 0  
SINCE 7/1 0  
COOLING TOTAL 419 436 -17 511  
SINCE 1/1 6235  
 
FREEZE DATES   
..........................................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 8.9  
HIGHEST WIND SPEED/DIRECTION 32/090 DATE 12/24  
HIGHEST GUST SPEED/DIRECTION 40/060 DATE 12/31  
 
SKY COVER  
AVERAGE SKY COVER 0.40  
 
AVERAGE RH (PERCENT) 79  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
THUNDERSTORM 0 MIXED PRECIP 0  
HEAVY RAIN 3 RAIN 4  
LIGHT RAIN 15 FREEZING RAIN 0  
LT FREEZING RAIN 0 HAIL 0  
HEAVY SNOW 0 SNOW 0  
LIGHT SNOW 0 SLEET 0  
FOG 13 FOG W/VIS <= 1/4 MILE 0  
HAZE 6  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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