112  
CDGM40 PGUM 301604  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
204 AM CHST SUN DEC 31 2023  
   
...............................  
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR DECEMBER 30 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 11:21 AM 90 1988 86 0 85  
MINIMUM 78 11:51 PM 71 1962 76 2 76  
1965  
AVERAGE 82 81 1 81  
 
PRECIPITATION (IN)  
YESTERDAY 0.10 3.11 2003 0.17 -0.07 0.26  
MONTH TO DATE 4.12 5.13 -1.01 8.24  
SINCE DEC 1 4.12 5.13 -1.01 8.24  
SINCE JAN 1 138.64 97.95 40.69 88.99  
 
SNOWFALL (IN)  
YESTERDAY 0.0  
MONTH TO DATE 0.0  
SINCE DEC 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 DEC 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 17 16 1 16  
MONTH TO DATE 501 502 -1 497  
SINCE DEC 1 501 502 -1 497  
SINCE JAN 1 6038 6186 -148 6002    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 19 RESULTANT WIND DIRECTION NE (50)  
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 19.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 8:00 PM  
LOWEST 59 1:00 PM  
AVERAGE 77  
   
......................................................  
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 86 90 1988  
MINIMUM TEMPERATURE (F) 76 68 1962  
 
SUNRISE AND SUNSET  
DECEMBER 31 2023......SUNRISE 6:43 AM CHST SUNSET 6:04 PM CHST  
JANUARY 1 2024.......SUNRISE 6:43 AM CHST SUNSET 6:04 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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