A great website is the Historical Weather information at http://www.weatherpost.com.
Go to http://www.weatherpost.com, and about half way down the page on the left
side, you will see Historical Weather; click on it. Next, put whatever
country or city you want in the small box that comes up on the left. Click
on the blue highlighted location that you want next when it comes up, and you
will be presented with Average High, Average Low and (in most cases) Average
Precipitation in that city over the last 20 years or more - all arranged
month by month. A very useful website!
Sally Watkins, CTC