“A month does not a trend make”

Entry in progress—B.P.
 
9 October 1984, Philadelphia (PA) Inquirer, “Some casinos tightening their belts as revenues sag,” pg. A1:
Roffman added, “A month does not a trend make.”
 
Twitter
Jerry Khachoyan
‏@TheArmoTrader
ADP jobs report miss + downward revision was bad today but meh as they say….one month does not a trend make.
6:02 AM - 2 Oct 13
   
The Motley Fool
Home building approvals slip despite uptrend
By Darryl Daté-Shappard - October 7, 2013
Just last month, the Australian Bureau of Statistics (ABS) released building approvals figures for July, showing a 10.8% seasonally adjusted rise, another sign that the housing market might finally have some legs under its recovery.
 
Yet like the old saying, “a month does not a trend make”, August saw the data slip down 4.7% on seasonally adjusted estimates. Monthly changes can be volatile, so longer time period trends are needed to get a better view.