2017 Ontario Wildfire History
Nationally, Natural Resources Canada's annual series reports 5,658 wildland fires and 3,589,432 ha burned in 2017. For Ontario-specific figures, use the jurisdiction filters in the linked official datasets. The national totals shown here provide context for the year and should not be read as Ontario's totals. The annual tables and mapped historical records also cover different details and should be read separately.
NRCan national annual series; context only, not the provincial total
NRCan national annual series; context only
Annual tables plus agency-provided historical locations/perimeters where available
Research Ontario in 2017
Ontario's fire region covers a vast northern boreal landscape. A province-wide annual record can contain very different Northwest, Northeast and southern conditions, which is why the source filters matter when reading province-wide figures.
The National Forestry Database tables can be filtered by jurisdiction, cause, month and fire size. Those source categories provide the most accurate way to review Ontario's 2017 record.
CNFDB fire locations and mapped polygons have different completeness. FireRadar never infers a historical perimeter from a fire point or final reported area, and a missing polygon is not described as evidence that no fire occurred.
National Forestry Database — Forest Fires
Canadian Council of Forest Ministers annual fire tables with jurisdiction, year, cause, month and fire-size filters and downloadable source data.
Natural Resources Canada — Canadian National Fire Database
Agency-provided historical wildfire locations and mapped fire perimeters. Point and polygon coverage differ, so a missing perimeter is not treated as a missing historical fire.
Compare nearby Ontario seasons
Compare the same official historical datasets in a different reporting year →
Compare the same official historical datasets in a different reporting year →
Compare the same official historical datasets in a different reporting year →
Compare the same official historical datasets in a different reporting year →