099  
CDUS43 KDMX 210635  
CLIALO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
135 AM CDT MON JUL 21 2025  
   
...............................
 
 
   
..THE WATERLOO IA CLIMATE SUMMARY FOR JULY 20 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 84 218 PM 104 1930 85 -1 74  
MINIMUM 69 407 AM 47 1970 64 5 62  
AVERAGE 77 75 2 68  
 
PRECIPITATION (IN)  
YESTERDAY 0.09 1.93 1999 0.12 -0.03 0.14  
MONTH TO DATE 6.24 2.91 3.33 3.44  
SINCE JUN 1 12.78 8.63 4.15 10.68  
SINCE JAN 1 23.82 21.50 2.32 29.92  
 
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 1  
SINCE JUN 1 6 18 -12 1  
SINCE JUL 1 0 0 0 1  
 
COOLING  
YESTERDAY 12 10 2 3  
MONTH TO DATE 190 200 -10 157  
SINCE JUN 1 440 412 28 414  
SINCE JAN 1 486 484 2 450    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 7.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 800 AM  
LOWEST 65 100 PM  
AVERAGE 81  
   
......................................................
 
 
THE WATERLOO IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 106 1901  
MINIMUM TEMPERATURE (F) 64 46 1944  
 
SUNRISE AND SUNSET  
JULY 21 2025..........SUNRISE 551 AM CDT SUNSET 840 PM CDT  
JULY 22 2025..........SUNRISE 552 AM CDT SUNSET 839 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab IA Page Main Text Page