826  
CDUS43 KDMX 180652  
CLIALO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
1252 AM CST MON DEC 18 2023  
   
...............................  
 
   
..THE WATERLOO IA CLIMATE SUMMARY FOR DECEMBER 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 38 438 PM 58 1939 33 5 22  
MINIMUM 34 715 PM -16 1914 17 17 9  
AVERAGE 36 25 11 16  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.28 1895 0.04 -0.04 0.03  
MONTH TO DATE 0.12 0.83 -0.71 1.00  
SINCE DEC 1 0.12 0.83 -0.71 1.00  
SINCE JAN 1 21.90 35.68 -13.78 33.45  
 
SNOWFALL (IN)  
YESTERDAY 0.0 2.5 1990 0.3 -0.3 0.6  
MONTH TO DATE T 5.1 -5.1 3.1  
SINCE DEC 1 T 5.1 -5.1 3.1  
SINCE JUL 1 2.1 8.5 -6.4 7.8  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 29 40 -11 49  
MONTH TO DATE 524 637 -113 601  
SINCE DEC 1 524 637 -113 601  
SINCE JUL 1 1675 2015 -340 1972  
 
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 28 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 11.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 1200 AM  
LOWEST 73 1000 PM  
AVERAGE 83  
   
......................................................  
 
THE WATERLOO IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 33 57 1923  
2002  
MINIMUM TEMPERATURE (F) 16 -23 1983  
 
SUNRISE AND SUNSET  
DECEMBER 18 2023......SUNRISE 734 AM CST SUNSET 438 PM CST  
DECEMBER 19 2023......SUNRISE 735 AM CST SUNSET 438 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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