851  
CDUS43 KDMX 312330  
CLIALO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
528 PM CST MON DEC 31 2018  
 
   
...............................
 
 
   
..THE WATERLOO IA CLIMATE SUMMARY FOR DECEMBER 31 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 34 211 PM 59 1965 28 6 -3  
MINIMUM 29 235 AM -23 1976 10 19 -17  
AVERAGE 32 19 13 -10  
 
PRECIPITATION (IN)  
TODAY 0.06 0.62 1977 0.03 0.03 0.03  
MONTH TO DATE 2.50 1.20 1.30 0.46  
SINCE DEC 1 2.50 1.20 1.30 0.46  
SINCE JAN 1 54.05 34.60 19.45 29.92  
 
SNOWFALL (IN)  
TODAY T 6.2 1977 0.3 -0.3 0.2  
MONTH TO DATE 2.2 9.9 -7.7 7.7  
SINCE DEC 1 2.2 9.9 -7.7 7.7  
SINCE JUL 1 6.0 13.3 -7.3 7.7  
SNOW DEPTH T  
 
DEGREE DAYS  
HEATING  
TODAY 33 46 -13 75  
MONTH TO DATE 1100 1327 -227 1330  
SINCE DEC 1 1100 1328 -228 1330  
SINCE JUL 1 2841 2811 30 2721  
 
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 17 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 6.7  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT SNOW  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 100 AM  
LOWEST 82 600 AM  
AVERAGE 87  
   
......................................................
 
 
 
THE WATERLOO IA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 27 61 1897  
MINIMUM TEMPERATURE (F) 10 -21 2018  
 
 
SUNRISE AND SUNSET  
DECEMBER 31 2018......SUNRISE 739 AM CST SUNSET 446 PM CST  
JANUARY 1 2019.......SUNRISE 739 AM CST SUNSET 447 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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