458  
CDGM40 PGUM 170632  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
432 PM CHST WED MAR 17 2021  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR MARCH 17 2021...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 87 1:43 PM 90 1991 86 1 88  
2013  
2018  
MINIMUM 77 4:53 AM 68 1998 76 1 75  
AVERAGE 82 81 1 82  
 
PRECIPITATION (IN)  
TODAY 0.00 1.44 1971 0.08 -0.08 T  
MONTH TO DATE 2.12 1.74 0.38 0.46  
SINCE MAR 1 2.12 1.74 0.38 0.46  
SINCE JAN 1 7.24 11.23 -3.99 7.24  
 
SNOWFALL (IN)  
TODAY 0.0  
MONTH TO DATE 0.0  
SINCE MAR 1 0.0  
SINCE JUL 1 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 17 16 1 17  
MONTH TO DATE 278 261 17 290  
SINCE MAR 1 278 261 17 290  
SINCE JAN 1 1242 1151 91 1228    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION E (90)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 12.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82 12:00 AM  
LOWEST 63 2:00 PM  
AVERAGE 73  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 86 91 1984  
MINIMUM TEMPERATURE (F) 76 71 1992  
1998  
2007  
 
SUNRISE AND SUNSET  
MARCH 17 2021.........SUNRISE 6:27 AM CHST SUNSET 6:31 PM CHST  
MARCH 18 2021.........SUNRISE 6:27 AM CHST SUNSET 6:31 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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