251  
CDGM40 PGUM 220812  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
612 PM CHST THU JUL 22 2021  
   
...............................
 
 
   
..THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR JULY 22 2021
 
 
VALID TODAY AS OF 0600 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
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 88 2:00 PM 92 1966 88 0 89  
1994  
MINIMUM 77 5:00 PM 71 1986 77 0 78  
AVERAGE 83 82 1 84  
 
PRECIPITATION (IN)  
TODAY 0.28 2.52 1965 0.45 -0.17 0.02  
MONTH TO DATE 5.63 8.02 -2.39 4.75  
SINCE JUN 1 10.71 14.53 -3.82 8.15  
SINCE JAN 1 28.69 34.74 -6.05 26.89  
 
SNOWFALL (IN)  
TODAY 0.0  
MONTH TO DATE 0.0  
SINCE JUN 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 JUN 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 18 17 1 19  
MONTH TO DATE 417 384 33 429  
SINCE JUN 1 985 927 58 1020  
SINCE JAN 1 3558 3402 156 3640    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SW (220)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 6.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 4:00 PM  
LOWEST 70 2:00 PM  
AVERAGE 85  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 92 1953  
1988  
MINIMUM TEMPERATURE (F) 77 71 1949  
 
SUNRISE AND SUNSET  
JULY 22 2021..........SUNRISE 6:03 AM CHST SUNSET 6:51 PM CHST  
JULY 23 2021..........SUNRISE 6:04 AM CHST SUNSET 6:51 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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