406  
CDGM40 PGUM 201602  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
202 AM CHST TUE APR 21 2026  
   
...............................  
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR APRIL 20 2026...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1945 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 87 12:38 PM 90 1948 88 -1 88  
2013  
2017  
MINIMUM 72 4:50 AM 63 1968 77 -5 76  
AVERAGE 80 83 -3 82  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.76 1989 0.12 -0.12 T  
MONTH TO DATE 13.77 2.20 11.57 1.34  
SINCE MAR 1 28.67 4.97 23.70 4.42  
SINCE JAN 1 42.44 14.46 27.98 12.68  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 15 18 -3 17  
MONTH TO DATE 329 347 -18 343  
SINCE MAR 1 772 851 -79 852  
SINCE JAN 1 1684 1770 -86 1812    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION E (80)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED 4.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 5:00 AM  
LOWEST 61 10:00 AM  
AVERAGE 78  
   
......................................................  
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 91 2016  
2021  
MINIMUM TEMPERATURE (F) 77 63 1968  
 
SUNRISE AND SUNSET  
APRIL 21 2026.........SUNRISE 6:05 AM CHST SUNSET 6:35 PM CHST  
APRIL 22 2026.........SUNRISE 6:04 AM CHST SUNSET 6:35 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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