364  
CDUS43 KDMX 182327  
CLIALO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
526 PM CST TUE DEC 18 2018  
   
...............................
 
 
   
..THE WATERLOO IA CLIMATE SUMMARY FOR DECEMBER 18 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 51 315 PM 57 2002 30 21 45  
1923  
MINIMUM 26 327 AM -23 1983 12 14 24  
AVERAGE 39 21 18 35  
 
PRECIPITATION (IN)  
TODAY 0.00 0.93 1968 0.03 -0.03 0.00  
MONTH TO DATE 0.52 0.78 -0.26 0.04  
SINCE DEC 1 0.52 0.78 -0.26 0.04  
SINCE JAN 1 52.07 34.18 17.89 29.50  
 
SNOWFALL (IN)  
TODAY 0.0 4.7 2000 0.3 -0.3 0.0  
MONTH TO DATE 1.3 5.9 -4.6 T  
SINCE DEC 1 1.3 5.9 -4.6 T  
SINCE JUL 1 5.1 9.3 -4.2 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 26 44 -18 30  
MONTH TO DATE 657 738 -81 628  
SINCE DEC 1 657 738 -81 628  
SINCE JUL 1 2398 2221 177 2019  
 
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 20 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 9.3  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 81 400 AM  
LOWEST 46 200 PM  
AVERAGE 64  
   
......................................................
 
 
 
THE WATERLOO IA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 29 52 1988  
1979  
MINIMUM TEMPERATURE (F) 12 -25 1985  
 
 
SUNRISE AND SUNSET  
DECEMBER 18 2018......SUNRISE 734 AM CST SUNSET 438 PM CST  
DECEMBER 19 2018......SUNRISE 735 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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