025  
CDGM40 PGUM 020023  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
1023 AM CHST SAT JAN 02 2021  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR JANUARY 1 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 86 1:58 PM 90 1971 85 1 85  
1989  
MINIMUM 76 4:54 AM 70 1973 76 0 76  
AVERAGE 81 81 0 81  
 
PRECIPITATION (IN)  
YESTERDAY 0.06 2.98 1976 0.19 -0.13 T  
MONTH TO DATE 0.06 0.19 -0.13 T  
SINCE DEC 1 8.08 6.17 1.91 1.46  
SINCE JAN 1 0.06 0.19 -0.13 T  
 
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 16 16 0 16  
MONTH TO DATE 16 16 0 16  
SINCE DEC 1 535 518 17 538  
SINCE JAN 1 16 16 0 16    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION E (90)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 11.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82 8:00 PM  
LOWEST 63 1:00 PM  
AVERAGE 73  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 90 1971  
1989  
2019  
MINIMUM TEMPERATURE (F) 76 72 1983  
2009  
 
SUNRISE AND SUNSET  
JANUARY 2 2021.......SUNRISE 6:44 AM CHST SUNSET 6:05 PM CHST  
JANUARY 3 2021.......SUNRISE 6:45 AM CHST SUNSET 6:06 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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