746  
CDGM40 PGUM 180639  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN, GUAM  
439 PM CHST WED SEP 18 2019  
 
   
...............................
 
 
 
...THE GUAM INTERNATIONAL AIRPORT GU CLIMATE SUMMARY FOR SEPTEMBER 18 2019...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1945 TO 2019  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 87 109 PM 93 2014 87 0 92  
MINIMUM 76 359 PM 73 1966 76 0 79  
1960  
1956  
AVERAGE 82 82 0 86  
 
PRECIPITATION (IN)  
TODAY 0.81 2.35 1981 0.46 0.35 0.09  
MONTH TO DATE 13.96 9.02 4.94 15.18  
SINCE SEP 1 13.96 9.02 4.94 15.18  
SINCE JAN 1 57.07 65.54 -8.47 78.53  
 
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  
MONTH TO DATE 0  
SINCE SEP 1 0  
SINCE JUL 1 0  
 
COOLING  
TODAY 17 16 1 21  
MONTH TO DATE 301 288 13 327  
SINCE SEP 1 301 288 13 327  
SINCE JAN 1 4630 4275 355 4803    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION N (340)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 7.1  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 91 100 AM  
LOWEST 68 1200 PM  
AVERAGE 80  
   
......................................................
 
 
 
THE GUAM INTERNATIONAL AIRPORT GU CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 93 1984  
MINIMUM TEMPERATURE (F) 76 71 1986  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 18 2019.....SUNRISE 610 AM CHST SUNSET 620 PM CHST  
SEPTEMBER 19 2019.....SUNRISE 610 AM CHST SUNSET 620 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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