552  
CDUS43 KDMX 310639  
CLIALO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
139 AM CDT SUN AUG 31 2025  
   
...............................  
 
   
..THE WATERLOO IA CLIMATE SUMMARY FOR AUGUST 30 2025  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1895 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 73 516 PM 96 1937 81 -8 82  
2012  
MINIMUM 59 226 AM 34 1915 58 1 60  
AVERAGE 66 70 -4 71  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.75 1956 0.13 -0.13 0.03  
MONTH TO DATE 3.09 4.04 -0.95 1.78  
SINCE JUN 1 19.62 14.10 5.52 14.41  
SINCE JAN 1 30.66 26.97 3.69 33.65  
 
SNOWFALL (IN)  
YESTERDAY 0.0 MM MM 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE JUN 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 15 4 11 5  
SINCE JUN 1 21 25 -4 6  
SINCE JUL 1 15 7 8 6  
 
COOLING  
YESTERDAY 1 6 -5 6  
MONTH TO DATE 197 220 -23 251  
SINCE JUN 1 758 729 29 781  
SINCE JAN 1 804 801 3 817    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 5.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 200 AM  
LOWEST 73 400 PM  
AVERAGE 87  
   
......................................................  
 
THE WATERLOO IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 99 2000  
MINIMUM TEMPERATURE (F) 58 36 1915  
 
SUNRISE AND SUNSET  
AUGUST 31 2025........SUNRISE 634 AM CDT SUNSET 745 PM CDT  
SEPTEMBER 1 2025.....SUNRISE 635 AM CDT SUNSET 743 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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