316  
CDGM40 PGUM 070630  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
430 PM CHST TUE SEP 07 2021  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 7 2021...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 88 11:34 AM 93 1983 87 1 88  
MINIMUM 80 6:42 AM 73 1950 76 4 77  
1954  
2000  
AVERAGE 84 82 2 83  
 
PRECIPITATION (IN)  
TODAY 0.00 9.28 1950 0.53 -0.53 0.29  
MONTH TO DATE 1.59 3.76 -2.17 1.42  
SINCE SEP 1 1.59 3.76 -2.17 1.42  
SINCE JAN 1 48.85 60.39 -11.54 44.50  
 
SNOWFALL (IN)  
TODAY 0.0  
MONTH TO DATE 0.0  
SINCE SEP 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 SEP 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 19 16 3 18  
MONTH TO DATE 125 112 13 130  
SINCE SEP 1 125 112 13 130  
SINCE JAN 1 4374 4178 196 4501    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION E (90)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 10.1  
 
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 88 1:00 AM  
LOWEST 72 12:00 PM  
AVERAGE 80  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 91 1985  
1988  
1992  
MINIMUM TEMPERATURE (F) 76 71 1952  
 
SUNRISE AND SUNSET  
SEPTEMBER 7 2021.....SUNRISE 6:10 AM CHST SUNSET 6:28 PM CHST  
SEPTEMBER 8 2021.....SUNRISE 6:10 AM CHST SUNSET 6:27 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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