541  
CDGM40 PGUM 010637  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
437 PM CHST FRI JAN 01 2021  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR JANUARY 1 2021...  
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 86 1:58 PM 90 1971 85 1 85  
1989  
MINIMUM 76 4:54 AM 70 1973 76 0 76  
AVERAGE 81 81 0 81  
 
PRECIPITATION (IN)  
TODAY 0.06 2.98 1976 0.19 -0.13 T  
MONTH TO DATE 0.06 0.19 -0.13 T  
SINCE DEC 1 8.08 6.17 1.91 1.46  
SINCE JAN 1 0.06 0.19 -0.13 T  
 
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 16 16 0 16  
MONTH TO DATE 16 16 0 16  
SINCE DEC 1 535 518 17 538  
SINCE JAN 1 16 16 0 16    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED MM RESULTANT WIND DIRECTION MM  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 24 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.  
FOG  
 
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 1971  
1989  
2019  
MINIMUM TEMPERATURE (F) 76 72 1983  
2009  
 
SUNRISE AND SUNSET  
JANUARY 1 2021.......SUNRISE 6:44 AM CHST SUNSET 6:05 PM CHST  
JANUARY 2 2021.......SUNRISE 6:44 AM CHST SUNSET 6:05 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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