430  
CDUS43 KDMX 182326  
CLIALO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
526 PM CST MON DEC 18 2023  
   
...............................
 
 
   
..THE WATERLOO IA CLIMATE SUMMARY FOR DECEMBER 18 2023
 
 
VALID TODAY AS OF 0520 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 35 1216 AM 57 1923 33 2 13  
2002  
MINIMUM 22 459 PM -23 1983 16 6 -1  
AVERAGE 29 24 5 6  
 
PRECIPITATION (IN)  
TODAY 0.00 0.93 1968 0.05 -0.05 0.00  
MONTH TO DATE 0.12 0.88 -0.76 1.00  
SINCE DEC 1 0.12 0.88 -0.76 1.00  
SINCE JAN 1 21.90 35.73 -13.83 33.45  
 
SNOWFALL (IN)  
TODAY 0.0 4.7 2000 0.4 -0.4 0.0  
MONTH TO DATE T 5.5 -5.5 3.1  
SINCE DEC 1 T 5.5 -5.5 3.1  
SINCE JUL 1 2.1 8.9 -6.8 7.8  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 36 40 -4 59  
MONTH TO DATE 560 677 -117 660  
SINCE DEC 1 560 677 -117 660  
SINCE JUL 1 1711 2055 -344 2031  
 
COOLING  
TODAY 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 33 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 46 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 21.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 66 1200 AM  
LOWEST 39 200 PM  
AVERAGE 53  
   
......................................................
 
 
THE WATERLOO IA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 32 52 1979  
1988  
2018  
MINIMUM TEMPERATURE (F) 16 -25 1985  
 
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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