461  
CXGM50 PGUM 010926  
CLMGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
726 PM CHST SAT FEB 01 2025  
   
...............................  
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2025...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1945 TO 2025  
 
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S  
VALUE DATE(S) VALUE FROM VALUE DATE(S)  
NORMAL    
............................................................  
 
TEMPERATURE (F)  
RECORD  
HIGH 94 01/09/1989  
LOW 66 01/18/2000  
HIGHEST 88 01/14 87 01/05  
01/30 01/13  
01/14  
LOWEST 73 01/19 72 01/24  
01/22  
AVG. MAXIMUM 85.8 85.9 -0.1 84.9  
AVG. MINIMUM 76.5 75.4 1.1 75.2  
MEAN 81.1  
DAYS MAX >= 90 0 0.2 -0.2 0  
DAYS MAX <= 32 0 0.0 0.0 0  
DAYS MIN <= 32 0 0.0 0.0 0  
DAYS MIN <= 0 0 0.0 0.0 0  
 
PRECIPITATION (INCHES)  
RECORD  
MAXIMUM 18.09 1976 (TY KATHY 9.52")  
MINIMUM 0.89 2018  
TOTALS 5.35 5.34 0.01 2.38  
DAILY AVG. 0.17 0.17 -0.00 0.08  
DAYS >= .01 17 20.1 -3.1 23  
DAYS >= .10 9 11.0 -2.0 8  
DAYS >= .50 2 2.7 -0.7 1  
DAYS >= 1.00 1 1.1 -0.1 0  
DAYS >= 3.00 1  
GREATEST  
24 HR. TOTAL 3.32 01/07 TO 01/07 0.52  
 
SNOWFALL (INCHES)  
TOTALS 0.0  
SINCE 7/1 0.0  
GREATEST  
SNOW DEPTH 0  
 
DEGREE DAYS  
COOLING TOTAL 507 485 22 477  
SINCE 1/1 507 485 22 477  
 
FREEZE DATES   
............................................................  
 
WIND (MPH)  
AVERAGE WIND SPEED 11.1  
RESULTANT WIND SPEED/DIRECTION 11/080  
HIGHEST WIND SPEED/DIRECTION 32/070 DATE 01/31  
HIGHEST GUST SPEED/DIRECTION 41/050 DATE 01/30  
41/070 01/31  
 
SKY COVER  
POSSIBLE SUNSHINE (PERCENT) MM  
AVERAGE SKY COVER 0.34  
NUMBER OF DAYS FAIR 13  
NUMBER OF DAYS PC 17  
NUMBER OF DAYS CLOUDY 1  
 
AVERAGE RH (PERCENT) 77  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
THUNDERSTORM 0 HEAVY RAIN 4  
RAIN 5 LIGHT RAIN 24  
FOG 0 HAZE 0  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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