099  
CDGM40 PGUM 091838  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN, GUAM  
437 AM CHST SAT OCT 10 2020  
 
   
...............................
 
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR OCTOBER 9 2020...  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1945 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 82 1257 PM 92 1984 87 -5 84  
1967  
MINIMUM 79 1159 PM 71 1952 76 3 75  
AVERAGE 81 82 -1 80  
 
PRECIPITATION (IN)  
YESTERDAY 1.79 4.20 1979 0.41 1.38 0.75  
MONTH TO DATE 5.83 3.68 2.15 6.59  
SINCE SEP 1 16.79 17.85 -1.06 27.62  
SINCE JAN 1 59.87 74.37 -14.50 70.73  
 
SNOWFALL (IN)  
YESTERDAY 0.0  
MONTH TO DATE 0.0  
SINCE SEP 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 SEP 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 16 17 -1 15  
MONTH TO DATE 158 153 5 145  
SINCE SEP 1 696 646 50 648  
SINCE JAN 1 5067 4633 434 4977    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION NE (50)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 4.6  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
HAZE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 800 PM  
LOWEST 85 1200 AM  
AVERAGE 91  
   
......................................................
 
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 93 1969  
MINIMUM TEMPERATURE (F) 76 72 2005  
1945  
 
 
SUNRISE AND SUNSET  
OCTOBER 10 2020.......SUNRISE 611 AM CHST SUNSET 605 PM CHST  
OCTOBER 11 2020.......SUNRISE 611 AM CHST SUNSET 604 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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