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KANSAS CITY REVIEW OF SCIENCE. 



PREVAILING WIND FOR EACH MONTH IN THE YEAR. 



The above is determined from seven observations each day, and at the close 

 of the month the number of times the wind was observed blowing from each di- 

 rection is summed up, and the direction having the greatest sum is the prevaiUng 

 wind for the month. 



It will be seen that the prevailing wind for eight months of the year is south. 

 This prevailing wind generally extends uninterruptedly from April to November, 

 or during the season of the greatest rainfall. The prevailing wind during the 

 winter months is from northwest to north. Notwithstanding that it has been as- 

 serted recently that the prevailing wind during spring and summer was southwest, 

 there is only one instance during the past nine years where the prevailing wind 

 for any month in the year was southwest, viz : August, 1878. 



The following table gives the rain and dry winds for the Missouri Valley for 

 each month in the year : 



