594  
CDUS43 KDVN 210926  
CLIIOW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE QUAD CITIES IA IL  
424 AM CDT THU SEP 21 2017  
 
   
...............................
 
 
   
..THE IOWA CITY IA CLIMATE SUMMARY FOR SEPTEMBER 20 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 9999 TO 9999  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 94 249 PM MM MM 75 19 88  
MINIMUM 68 341 AM MM MM 50 18 62  
AVERAGE 81 62 19 75  
 
PRECIPITATION (IN)  
YESTERDAY 0.16 MM MM 0.12 0.04 0.00  
MONTH TO DATE 0.49 2.38 -1.89 1.49  
SINCE SEP 1 0.49 2.38 -1.89 1.49  
SINCE JAN 1 26.02 28.53 -2.51 27.13  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 4 -4 0  
MONTH TO DATE 17 42 -25 0  
SINCE SEP 1 17 42 -25 0  
SINCE JUL 1 17 50 -33 2  
 
COOLING  
YESTERDAY 16 2 14 10  
MONTH TO DATE 90 67 23 134  
SINCE SEP 1 90 67 23 134  
SINCE JAN 1 962 889 73 1110    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 9.9  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
RAIN  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 1000 PM  
LOWEST 46 200 PM  
AVERAGE 70  
   
......................................................
 
 
 
THE IOWA CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 MM MM  
MINIMUM TEMPERATURE (F) 50 MM MM  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 21 2017.....SUNRISE 653 AM CDT SUNSET 705 PM CDT  
SEPTEMBER 22 2017.....SUNRISE 654 AM CDT SUNSET 703 PM CDT  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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