188  
CDUS43 KDMX 110629  
CLIALO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
129 AM CDT THU SEP 11 2025  
   
...............................
 
 
   
..THE WATERLOO IA CLIMATE SUMMARY FOR SEPTEMBER 10 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 82 204 PM 98 1931 79 3 83  
MINIMUM 59 718 AM 35 1976 55 4 58  
AVERAGE 71 67 4 71  
 
PRECIPITATION (IN)  
YESTERDAY 0.03 1.75 2006 0.11 -0.08 0.10  
MONTH TO DATE 0.08 1.12 -1.04 0.10  
SINCE SEP 1 0.08 1.12 -1.04 0.10  
SINCE JAN 1 30.74 28.22 2.52 33.75  
 
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 2 -2 0  
MONTH TO DATE 50 15 35 16  
SINCE SEP 1 50 15 35 16  
SINCE JUL 1 65 28 37 22  
 
COOLING  
YESTERDAY 6 4 2 6  
MONTH TO DATE 9 45 -36 16  
SINCE SEP 1 9 45 -36 16  
SINCE JAN 1 816 851 -35 838    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION E (100)  
AVERAGE WIND SPEED 4.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 1100 PM  
LOWEST 49 200 PM  
AVERAGE 71  
   
......................................................
 
 
THE WATERLOO IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 98 2000  
MINIMUM TEMPERATURE (F) 54 32 1917  
 
SUNRISE AND SUNSET  
SEPTEMBER 11 2025.....SUNRISE 646 AM CDT SUNSET 726 PM CDT  
SEPTEMBER 12 2025.....SUNRISE 647 AM CDT SUNSET 724 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab IA Page Main Text Page