849  
CDGM40 PGUM 231603  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
203 AM CHST SUN SEP 24 2023  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 23 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 87 12:14 PM 92 1962 87 0 86  
1970  
MINIMUM 76 5:13 AM 70 1945 76 0 75  
AVERAGE 82 82 0 81  
 
PRECIPITATION (IN)  
YESTERDAY T 3.97 2021 0.50 -0.50 0.02  
MONTH TO DATE 10.30 11.79 -1.49 11.06  
SINCE SEP 1 10.30 11.79 -1.49 11.06  
SINCE JAN 1 108.78 68.42 40.36 55.29  
 
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 16  
MONTH TO DATE 395 391 4 377  
SINCE SEP 1 395 391 4 377  
SINCE JAN 1 4381 4519 -138 4389    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION N (340)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 6.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 5:00 AM  
LOWEST 70 12:00 PM  
AVERAGE 83  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 91 1977  
MINIMUM TEMPERATURE (F) 76 71 1945  
 
SUNRISE AND SUNSET  
SEPTEMBER 24 2023.....SUNRISE 6:10 AM CHST SUNSET 6:16 PM CHST  
SEPTEMBER 25 2023.....SUNRISE 6:10 AM CHST SUNSET 6:15 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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