156  
CDUS43 KDMX 150647  
CLIALO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
147 AM CDT TUE SEP 15 2026  
   
...............................
 
 
   
..THE WATERLOO IA CLIMATE SUMMARY FOR SEPTEMBER 14 2026
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1895 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 69 1159 PM 98 1939 78 -9 93  
MINIMUM 51 148 AM 30 1923 53 -2 64  
AVERAGE 60 65 -5 79  
 
PRECIPITATION (IN)  
YESTERDAY 0.62 2.45 1942 0.10 0.52 0.00  
MONTH TO DATE 1.35 1.54 -0.19 0.08  
SINCE SEP 1 1.35 1.54 -0.19 0.08  
SINCE JAN 1 31.13 28.64 2.49 30.74  
 
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 MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 5 3 2 0  
MONTH TO DATE 12 26 -14 50  
SINCE SEP 1 12 26 -14 50  
SINCE JUL 1 13 39 -26 65  
 
COOLING  
YESTERDAY 0 4 -4 14  
MONTH TO DATE 113 61 52 51  
SINCE SEP 1 113 61 52 51  
SINCE JAN 1 941 867 74 858    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 41 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 13.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 1200 AM  
LOWEST 65 700 PM  
AVERAGE 81  
   
......................................................
 
 
THE WATERLOO IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 100 1927  
MINIMUM TEMPERATURE (F) 53 30 2007  
 
SUNRISE AND SUNSET  
SEPTEMBER 15 2026.....SUNRISE 650 AM CDT SUNSET 719 PM CDT  
SEPTEMBER 16 2026.....SUNRISE 651 AM CDT SUNSET 717 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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