110  
CDUS43 KDMX 210633  
CLIALO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
133 AM CDT THU SEP 21 2023  
   
...............................
 
 
   
..THE WATERLOO IA CLIMATE SUMMARY FOR SEPTEMBER 20 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 80 123 PM 96 2022 76 4 96  
MINIMUM 59 1159 PM 27 1991 51 8 71  
AVERAGE 70 63 7 84  
 
PRECIPITATION (IN)  
YESTERDAY 0.06 2.65 1923 0.10 -0.04 0.00  
MONTH TO DATE 0.38 2.15 -1.77 1.06  
SINCE SEP 1 0.38 2.15 -1.77 1.06  
SINCE JAN 1 16.64 29.25 -12.61 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 49 -35 12  
SINCE SEP 1 14 49 -35 12  
SINCE JUL 1 18 62 -44 12  
 
COOLING  
YESTERDAY 5 3 2 19  
MONTH TO DATE 98 79 19 111  
SINCE SEP 1 98 79 19 111  
SINCE JAN 1 1009 885 124 1017    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 5.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 1100 PM  
LOWEST 49 100 PM  
AVERAGE 70  
   
......................................................
 
 
THE WATERLOO IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 93 1937  
MINIMUM TEMPERATURE (F) 50 27 1918  
 
SUNRISE AND SUNSET  
SEPTEMBER 21 2023.....SUNRISE 656 AM CDT SUNSET 709 PM CDT  
SEPTEMBER 22 2023.....SUNRISE 657 AM CDT SUNSET 707 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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