489  
CXGM50 PGUM 010152  
CLMGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
1152 AM CHST TUE APR 01 2025  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR THE MONTH OF MARCH 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 93 03/29/1964  
LOW 66 03/14/1965  
HIGHEST 88 03/10 89 03/22  
03/27  
03/28  
LOWEST 74 03/05 70 03/21  
03/08  
AVG. MAXIMUM 86.1 86.9 -0.8 86.5  
AVG. MINIMUM 76.3 75.6 0.7 74.5  
MEAN 81.2  
DAYS MAX >= 90 0 1.2 -1.2 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 9.27 1974  
MINIMUM 0.40 1978  
TOTALS 3.08 2.77 0.31 1.62  
DAILY AVG. 0.10 0.09 0.01 0.05  
DAYS >= .01 19 18.3 0.7 20  
DAYS >= .10 6 7.6 -1.6 6  
DAYS >= .50 2 1.3 0.7 0  
DAYS >= 1.00 1 0.2 0.8 0  
DAYS >= 3.00 0  
GREATEST  
24 HR. TOTAL 1.15 03/01 TO 03/02 0.28 03/05  
 
SNOWFALL (INCHES)  
TOTALS 0.0  
SINCE 7/1 0.0  
GREATEST  
SNOW DEPTH 0  
 
DEGREE DAYS  
COOLING TOTAL 509 504 5 490  
SINCE 1/1 1469 1423 46 1399  
 
FREEZE DATES   
............................................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 12.0  
RESULTANT WIND SPEED/DIRECTION 12/080  
HIGHEST WIND SPEED/DIRECTION 30/050 DATE 03/01  
HIGHEST GUST SPEED/DIRECTION 39/040 DATE 03/01  
 
SKY COVER  
POSSIBLE SUNSHINE (PERCENT) MM  
AVERAGE SKY COVER 0.35  
NUMBER OF DAYS FAIR 22  
NUMBER OF DAYS PC 7  
NUMBER OF DAYS CLOUDY 2  
 
AVERAGE RH (PERCENT) 75  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
THUNDERSTORM 0 HEAVY RAIN 6  
RAIN 5 LIGHT RAIN 23  
FOG 0 HAZE 0  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab GU Page Main Text Page