571  
CDGM40 PGUM 201617  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
217 AM CHST SUN FEB 21 2021  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR FEBRUARY 20 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 2:40 PM 89 1946 85 2 86  
1981  
MINIMUM 77 6:35 AM 68 1978 75 2 75  
AVERAGE 82 80 2 81  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 1.30 1991 0.16 -0.15 0.00  
MONTH TO DATE 0.83 3.23 -2.40 3.32  
SINCE DEC 1 12.96 14.17 -1.21 7.77  
SINCE JAN 1 4.94 8.19 -3.25 6.31  
 
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 16  
MONTH TO DATE 332 300 32 303  
SINCE DEC 1 1348 1273 75 1313  
SINCE JAN 1 829 771 58 791    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION E (90)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 10.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 12:00 AM  
LOWEST 63 3:00 PM  
AVERAGE 77  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 93 1946  
MINIMUM TEMPERATURE (F) 75 71 1969  
1992  
1994  
 
SUNRISE AND SUNSET  
FEBRUARY 21 2021......SUNRISE 6:41 AM CHST SUNSET 6:28 PM CHST  
FEBRUARY 22 2021......SUNRISE 6:41 AM CHST SUNSET 6:28 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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