657  
CDGM40 PGUM 030008  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
1008 AM CHST SUN JAN 03 2021  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR JANUARY 2 2021...  
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1945 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 87 1:10 PM 90 1971 85 2 86  
1989  
2019  
MINIMUM 78 6:36 AM 72 1983 76 2 75  
2009  
AVERAGE 83 81 2 81  
 
PRECIPITATION (IN)  
YESTERDAY T 0.77 1946 0.19 -0.19 0.03  
MONTH TO DATE 0.06 0.38 -0.32 0.03  
SINCE DEC 1 8.08 6.36 1.72 1.49  
SINCE JAN 1 0.06 0.38 -0.32 0.03  
 
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 18 16 2 16  
MONTH TO DATE 34 32 2 32  
SINCE DEC 1 553 534 19 554  
SINCE JAN 1 34 32 2 32    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 14 RESULTANT WIND DIRECTION E (80)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 14.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79 9:00 PM  
LOWEST 61 1:00 PM  
AVERAGE 70  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 90 1989  
MINIMUM TEMPERATURE (F) 76 70 1983  
 
SUNRISE AND SUNSET  
JANUARY 3 2021.......SUNRISE 6:45 AM CHST SUNSET 6:06 PM CHST  
JANUARY 4 2021.......SUNRISE 6:45 AM CHST SUNSET 6:07 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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