642  
CDGM40 PGUM 310006  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
1006 AM CHST SUN JAN 31 2021  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR JANUARY 30 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 3:22 PM 90 2015 85 1 84  
MINIMUM 69R 7:08 AM 69 2021 75 -6 77  
AVERAGE 78 80 -2 81  
 
PRECIPITATION (IN)  
YESTERDAY 0.15 1.54 2014 0.13 0.02 0.15  
MONTH TO DATE 4.04 4.82 -0.78 2.96  
SINCE DEC 1 12.06 10.80 1.26 4.42  
SINCE JAN 1 4.04 4.82 -0.78 2.96  
 
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 13 15 -2 16  
MONTH TO DATE 483 453 30 471  
SINCE DEC 1 1002 955 47 993  
SINCE JAN 1 483 453 30 471    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION NE (60)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 9.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88 9:00 PM  
LOWEST 55 11:00 AM  
AVERAGE 72  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 89 1985  
MINIMUM TEMPERATURE (F) 75 70 1969  
 
SUNRISE AND SUNSET  
JANUARY 31 2021.......SUNRISE 6:48 AM CHST SUNSET 6:21 PM CHST  
FEBRUARY 1 2021......SUNRISE 6:48 AM CHST SUNSET 6:21 PM CHST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab GU Page Main Text Page