558  
CDUS43 KDMX 200633  
CLIALO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
1233 AM CST WED DEC 20 2023  
   
...............................
 
 
   
..THE WATERLOO IA CLIMATE SUMMARY FOR DECEMBER 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 38 243 PM 52 1979 32 6 28  
1988  
2018  
MINIMUM 10 155 AM -25 1985 16 -6 -2  
AVERAGE 24 24 0 13  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.68 1987 0.05 -0.05 0.08  
MONTH TO DATE 0.12 0.93 -0.81 1.08  
SINCE DEC 1 0.12 0.93 -0.81 1.08  
SINCE JAN 1 21.90 35.78 -13.88 33.53  
 
SNOWFALL (IN)  
YESTERDAY 0.0 5.5 2012 0.3 -0.3 0.8  
MONTH TO DATE T 5.8 -5.8 3.9  
SINCE DEC 1 T 5.8 -5.8 3.9  
SINCE JUL 1 2.1 9.2 -7.1 8.6  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 41 41 0 52  
MONTH TO DATE 607 718 -111 712  
SINCE DEC 1 607 718 -111 712  
SINCE JUL 1 1758 2096 -338 2083  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1115 916 199 1023    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 10.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 80 200 AM  
LOWEST 44 200 PM  
AVERAGE 62  
   
......................................................
 
 
THE WATERLOO IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 32 53 1967  
MINIMUM TEMPERATURE (F) 16 -20 1983  
 
SUNRISE AND SUNSET  
DECEMBER 20 2023......SUNRISE 735 AM CST SUNSET 439 PM CST  
DECEMBER 21 2023......SUNRISE 736 AM CST SUNSET 439 PM CST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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