Mr. Vernon, F.R.A.S., read a Paper £C On the Direction 
of the Wind at Manchester during the Years 1849 to 1861, 
at Sh. a.m.” 
The prevailing winds in the various months are as 
follows : — 
Month. 
Most Prevalent 
Winds. 
Least Prevalent 
Winds. 
January 
S.W. 
N., N.E. 
February 
S.W. 
N., W. 
March 
S.W. 
N. 
April 
N.E. 
N. 
May 
N.E. 
N. 
June 
S.W. 
N. 
July 
S.W. 
E. 
August. 
S.W. 
E. 
September 
S.W. 
N. 
October 
S.W. 
N. 
November 
S.W. 
N. 
December 
S.W. 
N. 
The mean order of frequency of each wind is as follows : — 
S.W. 
= 9T5 days 
per year. 
N.W. 
= 56-0 
do. 
N.E. 
= 48-6 
do. 
W. 
= 42-0 
do. 
s. 
= 40-7 
do. 
S.E. 
= 38-7 
do. 
E. 
= 30-3 
do. 
N. 
= 16-3 
do. 
When these figures are referred to the four principal 
points only, we have 
N = 68-6; E. = 74-0; S. = 105-8; W. = 115-8; 
showing a gradual increase towards the W. The mean 
yearly direction appears to be exactly S.W. 
When the directions of the wind are found for each season 
of the year, we arrive at the following facts 
In the winter months, the S.W. wind predominates. 
