074  
CDGM40 PGUM 131600  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
200 AM CHST THU JAN 14 2021  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR JANUARY 13 2021...  
 
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)  
YESTERDAY  
MAXIMUM 86 1:51 PM 89 1982 85 1 85  
2014  
MINIMUM 76 7:01 PM 68 1973 76 0 76  
AVERAGE 81 80 1 81  
 
PRECIPITATION (IN)  
YESTERDAY 0.15 3.21 1996 0.17 -0.02 0.05  
MONTH TO DATE 1.39 2.31 -0.92 0.86  
SINCE DEC 1 9.41 8.29 1.12 2.32  
SINCE JAN 1 1.39 2.31 -0.92 0.86  
 
SNOWFALL (IN)  
YESTERDAY 0.0  
MONTH TO DATE 0.0  
SINCE DEC 1 0.0  
SINCE JUL 1 0.0  
SNOW DEPTH MM  
 
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 16 15 1 16  
MONTH TO DATE 217 198 19 210  
SINCE DEC 1 736 700 36 732  
SINCE JAN 1 217 198 19 210    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION E (90)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 11.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 4:00 PM  
LOWEST 63 12:00 PM  
AVERAGE 77  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 89 1986  
2014  
2019  
MINIMUM TEMPERATURE (F) 76 71 1950  
1973  
 
SUNRISE AND SUNSET  
JANUARY 14 2021.......SUNRISE 6:47 AM CHST SUNSET 6:12 PM CHST  
JANUARY 15 2021.......SUNRISE 6:48 AM CHST SUNSET 6:13 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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