163  
CDUS43 KDMX 180638  
CLIALO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
138 AM CDT FRI APR 18 2025  
   
...............................
 
 
   
..THE WATERLOO IA CLIMATE SUMMARY FOR APRIL 17 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 75 222 PM 85 1985 62 13 62  
MINIMUM 49 654 AM 14 1921 38 11 44  
AVERAGE 62 50 12 53  
 
PRECIPITATION (IN)  
YESTERDAY 0.16 1.62 2013 0.14 0.02 0.02  
MONTH TO DATE 0.64 2.09 -1.45 1.27  
SINCE MAR 1 3.02 4.07 -1.05 3.77  
SINCE JAN 1 3.56 6.31 -2.75 6.49  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.0 1960 0.0 0.0 0.0  
MONTH TO DATE 0.0 1.2 -1.2 T  
SINCE MAR 1 4.2 5.8 -1.6 4.9  
SINCE JUL 1 17.1 38.5 -21.4 32.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 3 15 -12 12  
MONTH TO DATE 311 311 0 250  
SINCE MAR 1 954 1190 -236 977  
SINCE JUL 1 5699 6360 -661 5199  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 2  
SINCE MAR 1 5 1 4 2  
SINCE JAN 1 5 1 4 2    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION SE (140)  
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 16.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 77 700 AM  
LOWEST 38 1200 AM  
AVERAGE 58  
   
......................................................
 
 
THE WATERLOO IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 62 92 1994  
MINIMUM TEMPERATURE (F) 39 20 1983  
 
SUNRISE AND SUNSET  
APRIL 18 2025.........SUNRISE 623 AM CDT SUNSET 755 PM CDT  
APRIL 19 2025.........SUNRISE 622 AM CDT SUNSET 756 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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