808  
CDUS43 KDMX 160649  
CLIALO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
149 AM CDT WED SEP 16 2026  
   
...............................  
 
   
..THE WATERLOO IA CLIMATE SUMMARY FOR SEPTEMBER 15 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 71 228 PM 100 1927 77 -6 89  
MINIMUM 55 1154 PM 30 2007 53 2 68  
AVERAGE 63 65 -2 79  
 
PRECIPITATION (IN)  
YESTERDAY 0.60 1.51 2016 0.10 0.50 0.03  
MONTH TO DATE 1.95 1.64 0.31 0.11  
SINCE SEP 1 1.95 1.64 0.31 0.11  
SINCE JAN 1 31.73 28.74 2.99 30.77  
 
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 2 3 -1 0  
MONTH TO DATE 14 29 -15 50  
SINCE SEP 1 14 29 -15 50  
SINCE JUL 1 15 42 -27 65  
 
COOLING  
YESTERDAY 0 3 -3 14  
MONTH TO DATE 113 64 49 65  
SINCE SEP 1 113 64 49 65  
SINCE JAN 1 941 870 71 872    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 7.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 800 AM  
LOWEST 68 300 PM  
AVERAGE 83  
   
......................................................  
 
THE WATERLOO IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 97 1931  
MINIMUM TEMPERATURE (F) 52 31 1984  
 
SUNRISE AND SUNSET  
SEPTEMBER 16 2026.....SUNRISE 651 AM CDT SUNSET 717 PM CDT  
SEPTEMBER 17 2026.....SUNRISE 652 AM CDT SUNSET 716 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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