977  
CDUS43 KDMX 030642  
CLIALO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
142 AM CDT WED SEP 03 2025  
   
...............................
 
 
   
..THE WATERLOO IA CLIMATE SUMMARY FOR SEPTEMBER 2 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 79 405 PM 100 1925 81 -2 77  
MINIMUM 51 612 AM 38 1946 57 -6 48  
1967  
AVERAGE 65 69 -4 63  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.63 1912 0.12 -0.12 0.00  
MONTH TO DATE 0.00 0.24 -0.24 0.00  
SINCE SEP 1 0.00 0.24 -0.24 0.00  
SINCE JAN 1 30.66 27.34 3.32 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 SEP 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 2  
MONTH TO DATE 0 2 -2 2  
SINCE SEP 1 0 2 -2 2  
SINCE JUL 1 15 15 0 8  
 
COOLING  
YESTERDAY 0 5 -5 0  
MONTH TO DATE 1 10 -9 0  
SINCE SEP 1 1 10 -9 0  
SINCE JAN 1 808 816 -8 822    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 3.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 400 AM  
LOWEST 44 200 PM  
AVERAGE 72  
   
......................................................
 
 
THE WATERLOO IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 101 1939  
MINIMUM TEMPERATURE (F) 57 36 1974  
 
SUNRISE AND SUNSET  
SEPTEMBER 3 2025.....SUNRISE 637 AM CDT SUNSET 740 PM CDT  
SEPTEMBER 4 2025.....SUNRISE 638 AM CDT SUNSET 738 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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