101  
CDUS43 KDMX 170647  
CLIALO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
1247 AM CST SUN DEC 17 2023  
   
...............................
 
 
   
..THE WATERLOO IA CLIMATE SUMMARY FOR DECEMBER 16 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 44 408 PM 63 1939 33 11 25  
MINIMUM 38 1159 PM -20 1932 17 21 21  
AVERAGE 41 25 16 23  
 
PRECIPITATION (IN)  
YESTERDAY 0.11 0.90 1940 0.05 0.06 0.04  
MONTH TO DATE 0.12 0.79 -0.67 0.97  
SINCE DEC 1 0.12 0.79 -0.67 0.97  
SINCE JAN 1 21.90 35.64 -13.74 33.42  
 
SNOWFALL (IN)  
YESTERDAY 0.0 9.0 1940 0.4 -0.4 0.8  
MONTH TO DATE T 4.8 -4.8 2.5  
SINCE DEC 1 T 4.8 -4.8 2.5  
SINCE JUL 1 2.1 8.2 -6.1 7.2  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 24 40 -16 42  
MONTH TO DATE 495 597 -102 552  
SINCE DEC 1 495 597 -102 552  
SINCE JUL 1 1646 1975 -329 1923  
 
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 15 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 5.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 1000 PM  
LOWEST 70 100 AM  
AVERAGE 84  
   
......................................................
 
 
THE WATERLOO IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 33 58 1939  
MINIMUM TEMPERATURE (F) 17 -16 1914  
 
SUNRISE AND SUNSET  
DECEMBER 17 2023......SUNRISE 734 AM CST SUNSET 438 PM CST  
DECEMBER 18 2023......SUNRISE 734 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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