847  
CDGM40 PGUM 170629  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
429 PM CHST SUN SEP 17 2023  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 17 2023...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 86 12:58 PM 91 1969 87 -1 86  
1984  
2018  
MINIMUM 77 3:59 AM 70 1972 76 1 75  
AVERAGE 82 82 0 81  
 
PRECIPITATION (IN)  
TODAY 0.09 4.70 1972 0.50 -0.41 1.13  
MONTH TO DATE 6.35 8.83 -2.48 10.13  
SINCE SEP 1 6.35 8.83 -2.48 10.13  
SINCE JAN 1 104.83 65.46 39.37 54.36  
 
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 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  
TODAY 17 17 0 16  
MONTH TO DATE 296 289 7 281  
SINCE SEP 1 296 289 7 281  
SINCE JAN 1 4282 4417 -135 4293    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION E (110)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 6.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
RAIN  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 7:00 AM  
LOWEST 75 12:00 PM  
AVERAGE 85  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 93 2014  
MINIMUM TEMPERATURE (F) 76 73 1956  
1960  
1966  
 
SUNRISE AND SUNSET  
SEPTEMBER 17 2023.....SUNRISE 6:10 AM CHST SUNSET 6:21 PM CHST  
SEPTEMBER 18 2023.....SUNRISE 6:10 AM CHST SUNSET 6:20 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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