332  
CDUS43 KDMX 270633  
CLIALO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
133 AM CDT SAT SEP 27 2025  
   
...............................
 
 
   
..THE WATERLOO IA CLIMATE SUMMARY FOR SEPTEMBER 26 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 89R 314 PM 88 1998 73 16 82  
2021  
MINIMUM 51 446 AM 26 1926 48 3 47  
1984  
AVERAGE 70 61 9 65  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 4.00 1915 0.10 -0.10 0.00  
MONTH TO DATE 0.89 2.75 -1.86 0.44  
SINCE SEP 1 0.89 2.75 -1.86 0.44  
SINCE JAN 1 31.55 29.85 1.70 34.09  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1942 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 6 -6 0  
MONTH TO DATE 52 81 -29 34  
SINCE SEP 1 52 81 -29 34  
SINCE JUL 1 67 94 -27 40  
 
COOLING  
YESTERDAY 5 2 3 0  
MONTH TO DATE 110 91 19 126  
SINCE SEP 1 110 91 19 126  
SINCE JAN 1 917 897 20 948    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 5.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 400 AM  
LOWEST 25 400 PM  
AVERAGE 59  
   
......................................................
 
 
THE WATERLOO IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 89 1905  
1954  
2021  
MINIMUM TEMPERATURE (F) 48 28 1928  
 
SUNRISE AND SUNSET  
SEPTEMBER 27 2025.....SUNRISE 703 AM CDT SUNSET 657 PM CDT  
SEPTEMBER 28 2025.....SUNRISE 704 AM CDT SUNSET 656 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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