948  
CDGM40 PGUM 272240  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
840 AM CHST FRI MAY 28 2021  
   
...............................
 
 
   
..THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR MAY 27 2021
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
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 4:03 PM 93 1985 89 -3 89  
2013  
MINIMUM 77 6:50 AM 71 2015 78 -1 79  
AVERAGE 82 83 -1 84  
 
PRECIPITATION (IN)  
YESTERDAY 0.22 2.65 1963 0.16 0.06 0.03  
MONTH TO DATE 6.18 3.79 2.39 5.14  
SINCE MAR 1 11.90 10.06 1.84 8.94  
SINCE JAN 1 17.02 19.55 -2.53 15.72  
 
SNOWFALL (IN)  
YESTERDAY 0.0  
MONTH TO DATE 0.0  
SINCE MAR 1 0.0  
SINCE JUL 1 0.0  
SNOW DEPTH 0.0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 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  
YESTERDAY 17 18 -1 19  
MONTH TO DATE 486 486 0 515  
SINCE MAR 1 1540 1503 37 1611  
SINCE JAN 1 2504 2403 101 2549    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION E (90)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 11.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 11:00 PM  
LOWEST 75 10:00 AM  
AVERAGE 83  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 92 1984  
1987  
2013  
MINIMUM TEMPERATURE (F) 78 74 1965  
1967  
1990  
 
SUNRISE AND SUNSET  
MAY 28 2021...........SUNRISE 5:53 AM CHST SUNSET 6:43 PM CHST  
MAY 29 2021...........SUNRISE 5:53 AM CHST SUNSET 6:44 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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