390  
CDUS43 KDMX 180631  
CLIALO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
131 AM CDT MON SEP 18 2023  
   
...............................
 
 
   
..THE WATERLOO IA CLIMATE SUMMARY FOR SEPTEMBER 17 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 80 310 PM 95 1925 77 3 75  
1988  
MINIMUM 46 1115 PM 32 1916 52 -6 63  
AVERAGE 63 64 -1 69  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 3.06 1914 0.10 -0.10 0.11  
MONTH TO DATE 0.31 1.84 -1.53 1.06  
SINCE SEP 1 0.31 1.84 -1.53 1.06  
SINCE JAN 1 16.57 28.94 -12.37 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 2 4 -2 0  
MONTH TO DATE 11 37 -26 12  
SINCE SEP 1 11 37 -26 12  
SINCE JUL 1 15 50 -35 12  
 
COOLING  
YESTERDAY 0 3 -3 4  
MONTH TO DATE 90 70 20 81  
SINCE SEP 1 90 70 20 81  
SINCE JAN 1 1001 876 125 987    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION N (360)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 5.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 700 AM  
LOWEST 28 400 PM  
AVERAGE 59  
   
......................................................
 
 
THE WATERLOO IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 93 1955  
MINIMUM TEMPERATURE (F) 52 28 1929  
 
SUNRISE AND SUNSET  
SEPTEMBER 18 2023.....SUNRISE 652 AM CDT SUNSET 714 PM CDT  
SEPTEMBER 19 2023.....SUNRISE 654 AM CDT SUNSET 712 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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