119  
CXGM50 PGUM 021208  
CLMGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
1008 PM CHST FRI AUG 02 2024  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR THE MONTH OF JULY 2024...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1945 TO 2024  
 
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S  
VALUE DATE(S) VALUE FROM VALUE DATE(S)  
NORMAL    
............................................................
 
 
TEMPERATURE (F)  
RECORD  
HIGH 95 07/18/1969  
LOW 69 07/10/2006  
HIGHEST 89 07/04 89 07/02  
07/13  
07/16  
LOWEST 74 07/25 74 07/28  
07/26  
07/27  
AVG. MAXIMUM 87.3 87.9 -0.6 86.6  
AVG. MINIMUM 77.3 77.1 0.2 77.1  
MEAN 82.3  
DAYS MAX >= 90 0 6.8 -6.8 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 29.80 2002 (9.35" TY CHATAAN)  
MINIMUM 4.46 1954  
TOTALS 7.51 12.25 -4.74 8.69  
DAILY AVG. 0.24 0.40 -0.16 0.28  
DAYS >= .01 29 26.0 3.0 25  
DAYS >= .10 23 17.8 5.2 18  
DAYS >= .50 4 6.7 -2.7 5  
DAYS >= 1.00 0 3.3 -3.3 2  
DAYS >= 3.00 0 0  
GREATEST  
24 HR. TOTAL 0.89 07/11 TO 07/12 1.44  
 
SNOWFALL (INCHES)  
TOTALS 0.0  
SINCE 7/1 0.0  
GREATEST  
SNOW DEPTH 0  
 
DEGREE DAYS  
COOLING TOTAL 546 542 4 530  
SINCE 1/1 3558 3606 -48 3465  
 
FREEZE DATES   
............................................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 9.0  
RESULTANT WIND SPEED/DIRECTION 8/090  
HIGHEST WIND SPEED/DIRECTION 26/090 DATE 07/14  
26/090 07/17  
26/110 07/18  
HIGHEST GUST SPEED/DIRECTION 40/120 DATE 07/18  
 
SKY COVER  
POSSIBLE SUNSHINE (PERCENT) MM  
AVERAGE SKY COVER 0.33  
NUMBER OF DAYS FAIR 16  
NUMBER OF DAYS PC 15  
NUMBER OF DAYS CLOUDY 0  
 
AVERAGE RH (PERCENT) 82  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
THUNDERSTORM 2 HEAVY RAIN 11  
RAIN 22 LIGHT RAIN 29  
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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