777  
CDGM40 PGUM 121604  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
204 AM CHST WED JAN 13 2021  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR JANUARY 12 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 2:20 PM 90 1989 85 1 84  
MINIMUM 77 12:35 AM 71 1973 76 1 76  
1980  
1994  
AVERAGE 82 80 2 80  
 
PRECIPITATION (IN)  
YESTERDAY T 3.17 1988 0.16 -0.16 0.20  
MONTH TO DATE 1.24 2.14 -0.90 0.81  
SINCE DEC 1 9.26 8.12 1.14 2.27  
SINCE JAN 1 1.24 2.14 -0.90 0.81  
 
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 15 2 15  
MONTH TO DATE 201 183 18 194  
SINCE DEC 1 720 685 35 716  
SINCE JAN 1 201 183 18 194    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION E (90)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 12.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79 8:00 PM  
LOWEST 65 5:00 PM  
AVERAGE 72  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 89 1982  
2014  
MINIMUM TEMPERATURE (F) 76 68 1973  
 
SUNRISE AND SUNSET  
JANUARY 13 2021.......SUNRISE 6:47 AM CHST SUNSET 6:12 PM CHST  
JANUARY 14 2021.......SUNRISE 6:47 AM CHST SUNSET 6:12 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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