525  
CXUS53 KDMX 011650  
CLMALO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
1150 AM CDT SUN JUN 01 2025  
   
...............................  
 
   
..THE WATERLOO IA CLIMATE SUMMARY FOR THE MONTH OF MAY 2025  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1895 TO 2025  
 
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S  
VALUE DATE(S) VALUE FROM VALUE  
NORMAL    
..........................................................  
 
TEMPERATURE (F)  
RECORD  
HIGH 108 05/31/1934  
LOW 22  
HIGHEST 87 05/12 88 -1  
05/15  
LOWEST 38 05/04 33 5  
MEAN 60.9 61.5 -0.6  
DAYS MAX >= 90 0 0.8 -0.8  
DAYS MAX <= 32 0 0.0 0.0  
DAYS MIN <= 32 0 1.0 -1.0  
DAYS MIN <= 0 0 0.0 0.0  
 
PRECIPITATION (INCHES)  
RECORD  
MAXIMUM 11.36 2004  
MINIMUM 0.65 1934  
TOTALS 2.37 4.61 -2.24  
DAILY AVG. 0.08 0.15 -0.07  
DAYS >= .01 8  
DAYS >= .10 4  
DAYS >= .50 2  
DAYS >= 1.00 1  
 
SNOWFALL (INCHES)  
TOTALS 0.0 0.1 -0.1  
SINCE 7/1 17.1 39.1 -22.0  
 
DEGREE DAYS  
HEATING TOTAL 159 173 -14  
SINCE 7/1 5993 6696 -703  
COOLING TOTAL 37 64 -27  
SINCE 1/1 46 72 -26    
..........................................................  
 
WIND (MPH)  
HIGHEST GUST SPEED/DIRECTION 50/100 DATE 05/19  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
THUNDERSTORM 1 HAIL 0  
SLEET 0 FOG 6  
FOG W/VIS <= 1/4 MILE 0 HAZE 4  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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