334  
CDUS43 KDMX 040642  
CLIALO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
142 AM CDT THU SEP 04 2025  
   
...............................  
 
   
..THE WATERLOO IA CLIMATE SUMMARY FOR SEPTEMBER 3 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 69 138 PM 101 1939 81 -12 79  
MINIMUM 47 1151 PM 36 1974 57 -10 50  
AVERAGE 58 69 -11 65  
 
PRECIPITATION (IN)  
YESTERDAY 0.02 2.57 2018 0.11 -0.09 0.00  
MONTH TO DATE 0.02 0.35 -0.33 0.00  
SINCE SEP 1 0.02 0.35 -0.33 0.00  
SINCE JAN 1 30.68 27.45 3.23 33.65  
 
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 7 1 6 0  
MONTH TO DATE 7 3 4 2  
SINCE SEP 1 7 3 4 2  
SINCE JUL 1 22 16 6 8  
 
COOLING  
YESTERDAY 0 5 -5 0  
MONTH TO DATE 1 15 -14 0  
SINCE SEP 1 1 15 -14 0  
SINCE JAN 1 808 821 -13 822    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 11.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 800 AM  
LOWEST 45 500 PM  
AVERAGE 69  
   
......................................................  
 
THE WATERLOO IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 101 1925  
MINIMUM TEMPERATURE (F) 57 34 1974  
 
SUNRISE AND SUNSET  
SEPTEMBER 4 2025.....SUNRISE 638 AM CDT SUNSET 738 PM CDT  
SEPTEMBER 5 2025.....SUNRISE 639 AM CDT SUNSET 736 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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