274  
CDGM40 PGUM 150637 CCA  
CLIGUM  
 
CLIMATE REPORT ...CORRECTED  
NATIONAL WEATHER SERVICE TIYAN GUAM  
437 PM CHST SUN OCT 15 2023  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR OCTOBER 15 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 12:37 PM 93 1966 87 -1 80  
MINIMUM 73 2:13 AM 70 1953 77 -4 74  
AVERAGE 80 82 -2 77  
 
PRECIPITATION (IN)  
TODAY 0.22 15.48 1953 0.41 -0.19 0.73  
MONTH TO DATE 15.01 6.75 8.26 11.50  
SINCE SEP 1 27.47 21.92 5.55 25.24  
SINCE JAN 1 125.95 78.55 47.40 69.47  
 
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 18 0 18 0  
MONTH TO DATE 18 0 18 0  
SINCE SEP 1 18 0 18 0  
SINCE JUL 1 18 0 18 0  
 
COOLING  
TODAY 0 17 -17 12  
MONTH TO DATE 236 255 -19 230  
SINCE SEP 1 745 757 -12 721  
SINCE JAN 1 4731 4885 -154 4733    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION W (280)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 7.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 12:00 AM  
LOWEST 74 5:00 AM  
AVERAGE 85  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 92 1982  
MINIMUM TEMPERATURE (F) 77 67 1966  
 
SUNRISE AND SUNSET  
OCTOBER 15 2023.......SUNRISE 6:11 AM CHST SUNSET 6:02 PM CHST  
OCTOBER 16 2023.......SUNRISE 6:11 AM CHST SUNSET 6:01 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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