World Weather & Climate Information

Average monthly snow and rainfall in Ottawa (millimeter)

  • Most rainfall (rainy season) is seen in November and December.
  • On average, November is the wettest month.
  • On average, July is the driest month.
  • The average amount of annual precipitation is: 999.9 mm (39.37 in)
This is the mean monthly precipitation over the year, including rain, snow, hail etc.
Show average precipitation in Ottawa in Inches »
Average precipitation (rain/snow) in Boston, United States of America   Copyright © 2018 www.weather-and-climate.com  Data from nearest weather station: Boston, United States of America (504.8 KM).

Weather Forecast for Ottawa

Show in Fahrenheit
Ice pellets
Partly cloudy
Partly cloudy

More climate information

Weather and Climate offers all the information you need to know about the climate in Ottawa.

We collected past weather data from many thousand weather stations around the world. So find on this website the historical weather averages in other cities in Canada and climate and forecast data for all other countries in the world.