907  
CDUS43 KDMX 312233  
CLIALO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
533 PM CDT THU JUL 31 2025  
   
...............................
 
 
   
..THE WATERLOO IA CLIMATE SUMMARY FOR JULY 31 2025
 
 
VALID TODAY AS OF 0520 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 75 359 PM 105 1988 84 -9 89  
MINIMUM 61 MM 43 1971 63 -2 71  
AVERAGE 68 74 -6 80  
 
PRECIPITATION (IN)  
TODAY T 2.45 1956 0.13 -0.13 0.24  
MONTH TO DATE 8.55 4.34 4.21 5.39  
SINCE JUN 1 15.09 10.06 5.03 12.63  
SINCE JAN 1 26.13 22.93 3.20 31.87  
 
SNOWFALL (IN)  
TODAY 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  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 1  
SINCE JUN 1 6 18 -12 1  
SINCE JUL 1 0 0 0 1  
 
COOLING  
TODAY 3 9 -6 15  
MONTH TO DATE 296 297 -1 273  
SINCE JUN 1 546 509 37 530  
SINCE JAN 1 592 581 11 566    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 6.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 100 AM  
LOWEST 46 300 PM  
AVERAGE 72  
   
......................................................
 
 
THE WATERLOO IA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 101 1988  
MINIMUM TEMPERATURE (F) 63 46 1920  
 
SUNRISE AND SUNSET  
JULY 31 2025..........SUNRISE 601 AM CDT SUNSET 830 PM CDT  
AUGUST 1 2025........SUNRISE 602 AM CDT SUNSET 829 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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