307  
CDGM40 PGUM 190635  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
435 PM CHST SAT DEC 19 2020  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR DECEMBER 19 2020...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1945 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 87 3:01 PM 90 1988 86 1 87  
MINIMUM 79 7:16 AM 71 1963 77 2 77  
AVERAGE 83 81 2 82  
 
PRECIPITATION (IN)  
TODAY T 2.82 1969 0.17 -0.17 0.05  
MONTH TO DATE 7.13 3.89 3.24 1.29  
SINCE DEC 1 7.13 3.89 3.24 1.29  
SINCE JAN 1 88.25 95.55 -7.30 91.79  
 
SNOWFALL (IN)  
TODAY 0.0  
MONTH TO DATE 0.0  
SINCE DEC 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 DEC 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 18 16 2 17  
MONTH TO DATE 317 312 5 326  
SINCE DEC 1 317 312 5 326  
SINCE JAN 1 6270 5813 457 6218    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED MM RESULTANT WIND DIRECTION MM  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED MM  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER MM  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST MM  
LOWEST MM  
AVERAGE MM  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 90 1988  
2014  
MINIMUM TEMPERATURE (F) 77 71 1963  
 
SUNRISE AND SUNSET  
DECEMBER 19 2020......SUNRISE 6:38 AM CHST SUNSET 5:58 PM CHST  
DECEMBER 20 2020......SUNRISE 6:38 AM CHST SUNSET 5:58 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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