025  
CDGM40 PGUM 140638  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
438 PM CHST MON DEC 14 2020  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR DECEMBER 7 2020...  
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1945 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 86 3:24 PM 90 1970 86 0 88  
2012  
MINIMUM 78 10:57 PM 73 1952 77 1 78  
1954  
1963  
AVERAGE 82 82 0 83  
 
PRECIPITATION (IN)  
YESTERDAY 0.77 2.42 1962 0.22 0.55 T  
MONTH TO DATE 4.22 1.63 2.59 0.26  
SINCE DEC 1 4.22 1.63 2.59 0.26  
SINCE JAN 1 85.34 93.29 -7.95 90.76  
 
SNOWFALL (IN)  
YESTERDAY 0.0  
MONTH TO DATE 0.0  
SINCE DEC 1 0.0  
SINCE JUL 1 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 17 17 0 18  
MONTH TO DATE 117 119 -2 121  
SINCE DEC 1 117 119 -2 121  
SINCE JAN 1 6070 5620 450 6013    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION E (90)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION E (100)  
AVERAGE WIND SPEED 11.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 8:00 PM  
LOWEST 77 9:00 AM  
AVERAGE 86  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 86 90 1970  
MINIMUM TEMPERATURE (F) 77 70 1963  
 
SUNRISE AND SUNSET  
DECEMBER 8 2020......SUNRISE 6:32 AM CHST SUNSET 5:53 PM CHST  
DECEMBER 9 2020......SUNRISE 6:32 AM CHST SUNSET 5:54 PM CHST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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