Ontario Climate Change Data Portal

Maps
- Mean Temperature
  - Annual Mean
  - Seasonal Mean
    - Spring
    - Summer
    - Autumn
    - Winter
  - Monthly Mean
    - January
    - February
    - March
    - April
    - May
    - June
    - July
    - August
    - September
    - October
    - November
    - December
- Maximum Temperature
  - Annual Mean
  - Seasonal Mean
    - Spring
    - Summer
    - Autumn
    - Winter
  - Monthly Mean
    - January
    - February
    - March
    - April
    - May
    - June
    - July
    - August
    - September
    - October
    - November
    - December
- Minimum Temperature
  - Annual Mean
  - Seasonal Mean
    - Spring
    - Summer
    - Autumn
    - Winter
  - Monthly Mean
    - January
    - February
    - March
    - April
    - May
    - June
    - July
    - August
    - September
    - October
    - November
    - December
- Precipitation
  - Annual Mean
  - Seasonal Mean
    - Spring
    - Summer
    - Autumn
    - Winter
  - Monthly Mean
    - January
    - February
    - March
    - April
    - May
    - June
    - July
    - August
    - September
    - October
    - November
    - December
- Climate Indices
  - Extreme Hot
    - Su
    - TR
    - TXx
    - TX90p
    - Tn90p
    - WSDI
    - HWDI-days
    - HWDI-period
    - HWDI-strength
    - Cooling Degree Days
  - Extreme Cold
    - FD
    - ID
    - TNn
    - TN10p
    - TX10p
    - CSDI
    - Heating Degree Days
  - Extreme Wet
    - Rx1day
    - Rx5day
    - Wet Days
    - R10mm
    - R20mm
    - R95pTOT
    - R99pTOT
    - prCWD
    - PRCPTOT
    - SDII
  - Extreme Dry
    - DrySpell
  - agroclimatic indices
    - GSL
    - GS-Start
    - GS-End
Time-series
Data
Documents
FAQ