175  
CDGM40 PGUM 081605  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
205 AM CHST WED DEC 09 2020  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR DECEMBER 8 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 2:26 PM 90 1970 86 0 87  
MINIMUM 77 5:16 AM 70 1963 77 0 75  
AVERAGE 82 82 0 81  
 
PRECIPITATION (IN)  
YESTERDAY 0.53 19.67 2002 0.21 0.32 T  
MONTH TO DATE 4.75 1.84 2.91 0.26  
SINCE DEC 1 4.75 1.84 2.91 0.26  
SINCE JAN 1 85.87 93.50 -7.63 90.76  
 
SNOWFALL (IN)  
YESTERDAY MM  
MONTH TO DATE 0.0  
SINCE DEC 1 0.0  
SINCE JUL 1 0.0  
SNOW DEPTH MM  
 
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 16  
MONTH TO DATE 134 136 -2 137  
SINCE DEC 1 134 136 -2 137  
SINCE JAN 1 6087 5637 450 6029    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION E (80)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION E (100)  
AVERAGE WIND SPEED 13.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 4:00 AM  
LOWEST 70 4:00 PM  
AVERAGE 82  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 86 89 1987  
2008  
2014  
MINIMUM TEMPERATURE (F) 77 71 1972  
 
SUNRISE AND SUNSET  
DECEMBER 9 2020......SUNRISE 6:32 AM CHST SUNSET 5:54 PM CHST  
DECEMBER 10 2020......SUNRISE 6:33 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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