755  
CDGM40 PGUM 221841  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN, GUAM  
431 AM CHST SAT SEP 23 2017  
 
   
...............................
 
 
 
...THE GUAM INTERNATIONAL AIRPORT GU CLIMATE SUMMARY FOR SEPTEMBER 22 2017...  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1945 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 91R 1224 PM 91 1970 87 4 86  
1969  
MINIMUM 78 624 AM 73 2000 76 2 78  
1999  
1953  
AVERAGE 85 82 3 82  
 
PRECIPITATION (IN)  
YESTERDAY 0.06 2.03 1959 0.45 -0.39 1.30  
MONTH TO DATE 12.52 10.84 1.68 7.48  
SINCE SEP 1 12.52 10.84 1.68 7.48  
SINCE JAN 1 67.58 67.36 0.22 53.82  
 
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 20 16 4 17  
MONTH TO DATE 389 352 37 428  
SINCE SEP 1 389 352 37 428  
SINCE JAN 1 4771 4339 432 4892    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION NE (40)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 6.9  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 1200 AM  
LOWEST 75 900 AM  
AVERAGE 85  
   
......................................................
 
 
 
THE GUAM INTERNATIONAL AIRPORT GU CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 92 1970  
1962  
MINIMUM TEMPERATURE (F) 76 70 1945  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 23 2017.....SUNRISE 610 AM CHST SUNSET 616 PM CHST  
SEPTEMBER 24 2017.....SUNRISE 610 AM CHST SUNSET 616 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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