January is the coldest month with minimum temperature falling to 3ºC and plenty of snowfall. The temperature rises fairly and continuously and July has a pleasant climate with temperature averaging 26ºC.
Rain is a common phenomenon though it falls less in winter than any other season. Snowfalls are an integral feature of local climate but modern transportation system makes sure that there are no disruptions in the city life.
Spring & Fall
Paris is at its best during the temperate spring months (March to May), with autumn coming in a close second.
Summer
This is peak tourist season. Points of interest see their largest crowds.
August is usually hot and sticky, and it's also when many Parisians take their yearly vacations, so businesses are likely to be closed. Opera and orchestra venues are mostly on break during the summer months.
Few budget hotels have air conditioned rooms so this may be a consideration for travel during the warmer months.
Winter
Winter months are generally cold and wet. Freezing temperatures and ice have been rare since the 1800's. The moist cold air, however, can be bone chilling.
In winter, there are all sorts of cultural events to tempt the visitor, but school holidays can clog the streets.
Attractions like the fountains at Versailles are shut down during the winter months.
A plus however is the lack of queues. This makes getting around & up close to monuments & attractions much easier.
Source
Current weather in Paris
Paris Weather - 5 Day Forecast
See average temperatures here: http://www.worldclimate.com/cgi-bin/d...