865  
CDGM40 PGUM 151602  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
202 AM CHST SAT JAN 16 2021  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR JANUARY 15 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 1:26 PM 89 1989 85 1 83  
1994  
2011  
MINIMUM 76 7:51 AM 70 1973 76 0 72  
AVERAGE 81 80 1 78  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 2.15 1948 0.15 -0.14 0.07  
MONTH TO DATE 1.61 2.62 -1.01 0.95  
SINCE DEC 1 9.63 8.60 1.03 2.41  
SINCE JAN 1 1.61 2.62 -1.01 0.95  
 
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 16 15 1 13  
MONTH TO DATE 249 228 21 238  
SINCE DEC 1 768 730 38 760  
SINCE JAN 1 249 228 21 238    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION E (80)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 10.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88 11:00 PM  
LOWEST 53 1:00 PM  
AVERAGE 71  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 89 1984  
1986  
1989  
MINIMUM TEMPERATURE (F) 76 70 1966  
1973  
1996  
 
SUNRISE AND SUNSET  
JANUARY 16 2021.......SUNRISE 6:48 AM CHST SUNSET 6:13 PM CHST  
JANUARY 17 2021.......SUNRISE 6:48 AM CHST SUNSET 6:14 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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