107  
CDGM40 PGUM 271832  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN, GUAM  
431 AM CHST MON SEP 28 2020  
 
   
...............................
 
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 27 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 87 248 PM 91 2016 87 0 87  
1986  
1964  
MINIMUM 79 355 AM 73 1956 76 3 77  
AVERAGE 83 82 1 82  
 
PRECIPITATION (IN)  
YESTERDAY 0.30 3.45 1985 0.42 -0.12 0.02  
MONTH TO DATE 9.27 12.99 -3.72 18.11  
SINCE SEP 1 9.27 12.99 -3.72 18.11  
SINCE JAN 1 52.35 69.51 -17.16 61.22  
 
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 18 17 1 17  
MONTH TO DATE 483 433 50 453  
SINCE SEP 1 483 433 50 453  
SINCE JAN 1 4854 4420 434 4782    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION S (200)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 2.5  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 800 AM  
LOWEST 74 500 PM  
AVERAGE 84  
   
......................................................
 
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 92 1988  
1982  
MINIMUM TEMPERATURE (F) 76 71 1990  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 28 2020.....SUNRISE 610 AM CHST SUNSET 613 PM CHST  
SEPTEMBER 29 2020.....SUNRISE 610 AM CHST SUNSET 612 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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