056  
CDGM40 PGUM 191619  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
219 AM CHST WED JAN 20 2021  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR JANUARY 19 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 12:10 PM 90 2012 85 2 85  
2018  
MINIMUM 79 11:44 PM 69 2000 75 4 75  
AVERAGE 83 80 3 80  
 
PRECIPITATION (IN)  
YESTERDAY T 1.66 1970 0.16 -0.16 0.21  
MONTH TO DATE 1.72 3.26 -1.54 1.27  
SINCE DEC 1 9.74 9.24 0.50 2.73  
SINCE JAN 1 1.72 3.26 -1.54 1.27  
 
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 15 3 15  
MONTH TO DATE 317 288 29 299  
SINCE DEC 1 836 790 46 821  
SINCE JAN 1 317 288 29 299    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 14 RESULTANT WIND DIRECTION E (80)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 14.5  
 
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 88 4:00 AM  
LOWEST 59 3:00 PM  
AVERAGE 74  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 91 1982  
MINIMUM TEMPERATURE (F) 75 71 1973  
1987  
2000  
 
SUNRISE AND SUNSET  
JANUARY 20 2021.......SUNRISE 6:48 AM CHST SUNSET 6:15 PM CHST  
JANUARY 21 2021.......SUNRISE 6:48 AM CHST SUNSET 6:16 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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