Ontario Climate

• Crop Heat Units for Corn & Other Warm Season Crops in Ontario (Order No. 93-119)
• Growing Degree Days in Ontario - A Description
• Freeze Protection Methods for Crops (Order No. 85-116)
• Irrigation For Frost Protection Of Strawberries

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  Links of Interest

  Adverse Weather
  

  • Adverse Weather - Management Options & Resources
    • OMAFRA staff have put together this web page of useful links, information, announcements and tips covering a variety of adverse weather topics including drought, frost, hail and erosion.

  Weather Forecasts
  

  • FarmZone.com
    • This page provides county by county current, short-term, long-term, historical and regional weather. Information includes Growing Degree Days, Min/Max, mean temperatures, and Crop Heat Units.
  • Weather Office Homepage
    • This page is the entrance page to access most weather data that Environment Canada provides.
  • 5 Day Forecast
    • A selection of major weather stations in Ontario that provide a 5 day forecast for each site.
  • Current and next day wind speed and direction forecasts
    • Intellicast provides the current and next day wind speed and direction forecast for the North Eastern United States and South & Cental Ontario.
  • Canadian Text Forecasts
    • Provides the text forecast for the major weather stations in Ontario.
  • Radar Image
  • Satellite Image
  • Air Quality Daily Conditions
    • This site provides daily air quality warnings and information what these warnings mean.
  • Seasonal Forecasts
    • This site provides seasonal forecasts for the coming months as to wether they will be above, below or average compared to normal

  Climate Summaries and Data
  

  • FarmZone.com
    • This page provides county by county current, short-term, long-term, historical and regional weather. Information includes Growing Degree Days, Min/Max, mean temperatures, and Crop Heat Units.
    Canadian Climate Normals
    • This site allows access to historical climate normals. Normals are based on records from 1971 to 2000. Data is available for all Environment Canada locations throughout Ontario and the rest of the provinces. Monthly summaries of precipitation, temperature, snow fall etc. are presented for each location.
  • Climate Data Online
    • This site provides climate data available online.
  • Climate Trends for Canada
    • This site provides summarized information on Canadian climate trends based on geographic location and information on where the season ranked compared to previous years.
  • Guelph and Elora Climate Data
    • The University of Guelph has made the climate data, collected from their Guelph and Elora weather station sites, available online through the Tri-University Data Resource Center.

  Information and Services
  

  • El Nino Homepage
    • Environment Canada has produced an online Fact Sheet and Internet homepage with everything you need to know about El Nino.
  • La Nina Homepage
    • Environment Canada has produced an online Fact Sheet and Internet homepage with everything you need to know about La Nina.
  • Weather Fact Sheets & Brochures
    • Information on various aspects of weather from blizzards to windchill to understanding forecasts. Produced by Environment Canada.
  • WW2010 (the weather world 2010 project)
    • Information and multimedia instructional moduals on various aspects of weather from pressure to clouds to understanding maps and images. Developed by the Department of Atmospheric Sciences at the University of Illinois Urbana-Champaign.
      

  Satellite and Radar Images

  • Satellite Images (GOES)
    • Environment Canada is posting single frame and animated satellite images from GOES.
  • Radar Images
    • Environment Canada is currently installing 31 doppler radar sites across Canada.
  • US Radar image