465  
CDGM40 PGUM 091619  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
219 AM CHST SUN SEP 10 2023  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 9 2023...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1945 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 86 11:13 AM 91 1988 87 -1 87  
1992  
1994  
MINIMUM 77 12:08 PM 71 1952 76 1 77  
1989  
AVERAGE 82 82 0 82  
 
PRECIPITATION (IN)  
YESTERDAY 0.85 7.35 1980 0.52 0.33 0.02  
MONTH TO DATE 5.36 4.81 0.55 1.67  
SINCE SEP 1 5.36 4.81 0.55 1.67  
SINCE JAN 1 103.84 61.44 42.40 45.90  
 
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 17 17 0 17  
MONTH TO DATE 156 153 3 155  
SINCE SEP 1 156 153 3 155  
SINCE JAN 1 4142 4281 -139 4167    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION S (200)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 6.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 2:00 AM  
LOWEST 75 3:00 PM  
AVERAGE 85  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 92 1984  
1987  
MINIMUM TEMPERATURE (F) 76 71 1966  
 
SUNRISE AND SUNSET  
SEPTEMBER 10 2023.....SUNRISE 6:10 AM CHST SUNSET 6:26 PM CHST  
SEPTEMBER 11 2023.....SUNRISE 6:10 AM CHST SUNSET 6:25 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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