365  
CDUS43 KDMX 200641  
CLIALO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
141 AM CDT WED SEP 20 2023  
   
...............................
 
 
   
..THE WATERLOO IA CLIMATE SUMMARY FOR SEPTEMBER 19 2023
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1895 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 77 1147 AM 95 1925 76 1 83  
MINIMUM 59 1142 PM 32 1991 51 8 53  
AVERAGE 68 64 4 68  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 4.50 1919 0.11 -0.10 T  
MONTH TO DATE 0.32 2.05 -1.73 1.06  
SINCE SEP 1 0.32 2.05 -1.73 1.06  
SINCE JAN 1 16.58 29.15 -12.57 28.40  
 
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 0 4 -4 0  
MONTH TO DATE 14 45 -31 12  
SINCE SEP 1 14 45 -31 12  
SINCE JUL 1 18 58 -40 12  
 
COOLING  
YESTERDAY 3 3 0 3  
MONTH TO DATE 93 76 17 92  
SINCE SEP 1 93 76 17 92  
SINCE JAN 1 1004 882 122 998    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION S (160)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 8.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 1100 PM  
LOWEST 52 1200 PM  
AVERAGE 70  
   
......................................................
 
 
THE WATERLOO IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 96 2022  
MINIMUM TEMPERATURE (F) 51 27 1991  
 
SUNRISE AND SUNSET  
SEPTEMBER 20 2023.....SUNRISE 655 AM CDT SUNSET 711 PM CDT  
SEPTEMBER 21 2023.....SUNRISE 656 AM CDT SUNSET 709 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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