566  
CDUS43 KDMX 212330  
CLIALO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
528 PM CST FRI DEC 21 2018  
 
   
...............................
 
 
   
..THE WATERLOO IA CLIMATE SUMMARY FOR DECEMBER 21 2018
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1895 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 32 111 AM 56 1941 29 3 35  
MINIMUM 27 459 PM -27 1963 12 15 27  
AVERAGE 30 20 10 31  
 
PRECIPITATION (IN)  
TODAY 0.00 0.83 1984 0.03 -0.03 0.00  
MONTH TO DATE 0.52 0.88 -0.36 0.04  
SINCE DEC 1 0.52 0.88 -0.36 0.04  
SINCE JAN 1 52.07 34.28 17.79 29.50  
 
SNOWFALL (IN)  
TODAY 0.0 6.0 1914 0.4 -0.4 0.0  
MONTH TO DATE 1.3 6.9 -5.6 T  
SINCE DEC 1 1.3 6.9 -5.6 T  
SINCE JUL 1 5.1 10.3 -5.2 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 35 45 -10 34  
MONTH TO DATE 743 871 -128 733  
SINCE DEC 1 743 871 -128 733  
SINCE JUL 1 2484 2354 130 2124  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 890 799 91 720    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 13.6  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 85 200 AM  
LOWEST 75 900 AM  
AVERAGE 80  
   
......................................................
 
 
 
THE WATERLOO IA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 29 55 1941  
MINIMUM TEMPERATURE (F) 12 -23 1983  
 
 
SUNRISE AND SUNSET  
DECEMBER 21 2018......SUNRISE 736 AM CST SUNSET 439 PM CST  
DECEMBER 22 2018......SUNRISE 737 AM CST SUNSET 440 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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