656  
CXCA42 TJSJ 021224 CCA  
CLASJU  
 
SJUCLASJU 000  
TTAA00 SJU 010746  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
345 AM AST FRI JAN 01 2021  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR THE YEAR OF 2020
 
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1898 TO 2020  
 
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S  
VALUE DATE(S) VALUE FROM VALUE  
NORMAL    
..........................................................
 
 
TEMPERATURE (F)  
RECORD  
HIGH 98 10/09/1981  
LOW 60 03/03/1957  
HIGHEST 95 05/24 95 0 95  
09/23  
09/22  
LOWEST 70 02/27 67 3 69  
03/26  
03/20  
AVG. MAXIMUM 87.5  
AVG. MINIMUM 76.3  
MEAN 81.9 81.0 0.9 81.8  
DAYS MAX >= 90 111 55.0 56.0  
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 89.50 2010  
MINIMUM 35.53 1991  
TOTALS 69.85 56.35 13.50 46.93  
DAILY AVG. 0.19 0.16 0.03 0.13  
DAYS >= .01 265 198.5 66.5 222  
DAYS >= .10 116 108.6 7.4 103  
DAYS >= .50 39 32.6 6.4 24  
DAYS >= 1.00 17 12.1 4.9 9  
GREATEST  
24 HR. TOTAL 4.46 2.82  
STORM TOTAL 2.44  
 
DEGREE DAYS  
HEATING TOTAL 0 0 0 0  
SINCE 7/1 0  
COOLING TOTAL 5672 5855 -183 6249  
SINCE 1/1 5672  
 
FREEZE DATES   
..........................................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 8.5  
HIGHEST WIND SPEED/DIRECTION 36/090 DATE 01/10  
HIGHEST GUST SPEED/DIRECTION 48/080 DATE 04/29  
 
SKY COVER  
AVERAGE SKY COVER 0.42  
 
AVERAGE RH (PERCENT) 75  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
THUNDERSTORM 28 MIXED PRECIP 0  
HEAVY RAIN 30 RAIN 59  
LIGHT RAIN 223 FREEZING RAIN 0  
LT FREEZING RAIN 0 HAIL 0  
HEAVY SNOW 0 SNOW 0  
LIGHT SNOW 0 SLEET 0  
FOG 128 FOG W/VIS <= 1/4 MILE 0  
HAZE 32  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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