415  
CDUS43 KDMX 190649  
CLIALO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
149 AM CDT TUE AUG 19 2025  
   
...............................  
 
   
..THE WATERLOO IA CLIMATE SUMMARY FOR AUGUST 18 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 85 419 PM 110 1936 83 2 85  
MINIMUM 70 1159 PM 43 1977 61 9 62  
2012  
AVERAGE 78 72 6 74  
 
PRECIPITATION (IN)  
YESTERDAY 0.51 1.91 1954 0.14 0.37 0.00  
MONTH TO DATE 3.06 2.45 0.61 0.61  
SINCE JUN 1 19.59 12.51 7.08 13.24  
SINCE JAN 1 30.63 25.38 5.25 32.48  
 
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 JUN 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 0 0 0  
MONTH TO DATE 0 0 0 3  
SINCE JUN 1 6 21 -15 4  
SINCE JUL 1 0 3 -3 4  
 
COOLING  
YESTERDAY 13 7 6 9  
MONTH TO DATE 156 144 12 134  
SINCE JUN 1 717 653 64 664  
SINCE JAN 1 763 725 38 700    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 42 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 7.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 800 AM  
LOWEST 70 100 PM  
AVERAGE 84  
   
......................................................  
 
THE WATERLOO IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 100 1916  
1983  
MINIMUM TEMPERATURE (F) 61 42 1963  
 
SUNRISE AND SUNSET  
AUGUST 19 2025........SUNRISE 621 AM CDT SUNSET 804 PM CDT  
AUGUST 20 2025........SUNRISE 622 AM CDT SUNSET 803 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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