975  
CDGM40 PGUM 310635  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
435 PM CHST SUN JAN 31 2021  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR JANUARY 31 2021...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1945 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 85 2:06 PM 89 1985 85 0 86  
MINIMUM 74 6:27 AM 70 1969 75 -1 77  
AVERAGE 80 80 0 82  
 
PRECIPITATION (IN)  
TODAY T 1.99 1963 0.14 -0.14 0.03  
MONTH TO DATE 4.04 4.96 -0.92 2.99  
SINCE DEC 1 12.06 10.94 1.12 4.45  
SINCE JAN 1 4.04 4.96 -0.92 2.99  
 
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 15 15 0 17  
MONTH TO DATE 498 471 27 488  
SINCE DEC 1 1017 973 44 1010  
SINCE JAN 1 498 471 27 488    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION E (70)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 13.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88 12:00 AM  
LOWEST 61 3:00 PM  
AVERAGE 75  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 90 2015  
MINIMUM TEMPERATURE (F) 75 70 1968  
2012  
 
SUNRISE AND SUNSET  
JANUARY 31 2021.......SUNRISE 6:48 AM CHST SUNSET 6:21 PM CHST  
FEBRUARY 1 2021......SUNRISE 6:48 AM CHST SUNSET 6:21 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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