787  
CXGM50 PGUM 041520  
CLMGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN, GUAM  
120 AM CHST TUE MAY 5 2020  
   
...............................
 
 
 
...THE GUAM INTERNATIONAL AIRPORT GU CLIMATE SUMMARY FOR THE MONTH OF APRIL 2020...  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1945 TO 2020  
 
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S  
VALUE DATE(S) VALUE FROM VALUE DATE(S)  
NORMAL    
............................................................
 
 
TEMPERATURE (F)  
RECORD  
HIGH 96 MM  
LOW 72 04/01/2008  
04/05/2007  
01/01/2000  
HIGHEST 91 04/22 MM MM 90 04/28  
04/18 04/16  
04/15  
LOWEST 73 04/03 MM MM 74 04/19  
04/09  
AVG. MAXIMUM 89.1 87.3 1.8 88.2  
AVG. MINIMUM 77.5 76.5 1.0 76.9  
MEAN 83.3 81.9 1.4 82.6  
DAYS MAX >= 90 12 0.9 11.1 2  
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 MM MM  
MINIMUM MM MM  
TOTALS 2.47 3.58 -1.11 1.15  
DAILY AVG. 0.08 0.12 -0.04 0.04  
DAYS >= .01 15 18.8 -3.8 17  
DAYS >= .10 6 7.9 -1.9 2  
DAYS >= .50 2 1.1 0.9 0  
DAYS >= 1.00 0 0.6 -0.6 0  
GREATEST  
24 HR. TOTAL 0.74 04/26 TO 04/26 04/06 TO 04/06  
04/30 TO 04/30EATHER OBSERVED NORMAL DEPART LAST YEAR'S  
04/30 TO 04/30EATHER OBSERVED NORMAL DEPART LAST YEAR'S  
STORM TOTAL MM MM  
(MM/DD(HH)) MM 04/06(00) TO 04/06(00)  
04/30(00) TO 04/30(00)0EATHER OBSERVED NORMAL DEPART LAST YEAR'S  
04/30(00) TO 04/30(00)0EATHER OBSERVED NORMAL DEPART LAST YEAR'S  
 
DEGREE_DAYS  
COOLING TOTAL 555 507 48 535  
SINCE 1/1 2034 1884 150 2016  
 
FREEZE DATES  
RECORD  
EARLIEST MM  
LATEST MM  
EARLIEST MM  
LATEST MM    
.............................................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 11.9  
RESULTANT WIND SPEED/DIRECTION 11/077  
HIGHEST WIND SPEED/DIRECTION 31/080 DATE 04/26  
HIGHEST GUST SPEED/DIRECTION 40/070 DATE 04/05  
 
SKY COVER  
POSSIBLE SUNSHINE (PERCENT) MM  
AVERAGE SKY COVER 0.40  
NUMBER OF DAYS FAIR 15  
NUMBER OF DAYS PC 13  
NUMBER OF DAYS CLOUDY 2  
 
AVERAGE RH (PERCENT) 72  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
0  
5  
0  
0  
0  
0  
0  
HAZE 5  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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