Average Precipitation for Ontario in October

The tables below give monthly averages for rainfall plus snowfall during October at cities, towns and parks in Ontario. Each place has a total for how many days of wet weather it usually gets this month and for the normal amount of precipitation.

You can jump to a separate table for each section of the province: Eastern, Central, Southwestern, Northeastern and Northwestern Ontario.

The calculation of days only includes the days when precipitation totalled at least 0.2 millimetres (0.008 inches). The month's total precipitation is an average of weather data collected during 1981 to 2010.

Eastern Ontario

Average monthly precipitation in October
Days	Place	Inches	Millimetres
13	Belleville	3.4	85
13	Cornwall	3.7	93
14	Kingston	3.6	92
15	Ottawa	3.4	86
15	Pembroke	3.0	77

Central Ontario

October averages for total rainfall plus snowfall
Days	Place	Inches	Millimetres
16	Barrie	3.1	78
12	Brantford	2.8	70
14	French River, Chaudiere Dam	3.9	100
12	Hamilton	2.8	72
15	Huntsville	4.1	105
17	Midland	3.7	94
14	Niagara Falls	3.3	84
13	Oshawa	2.8	70
15	Peterborough	3.0	77
12	St Catharines	2.6	67
12	Toronto	2.5	64

Southwestern Ontario

Average amount of rain and snow in October
Days	Place	Inches	Millimetres
12	Chatham-Kent	2.8	71
15	Guelph	2.8	72
13	London	3.2	81
18	Owen Sound	3.9	98
14	Point Pelee National Park	2.7	70
12	Sarnia	3.0	76
14	Waterloo	2.7	67
12	Windsor	2.9	73

Northeastern Ontario

Precipitation totals for October
Days	Place	Inches	Millimetres
17	Chapleau	3.3	83
15	Gore Bay	4.2	107
18	Kapuskasing	3.4	86
17	Moosonee	2.9	75
16	North Bay	4.2	107
17	Sault Ste Marie	4.0	102
15	South Baymouth	4.4	112
15	Sudbury	3.6	91
17	Timmins	3.2	82
16	Wawa	4.6	118

Northwestern Ontario

Total precipitation during October
Days	Place	Inches	Millimetres
13	Atikokan	3.0	76
15	Big Trout Lake	2.0	50
14	Dryden	2.5	64
12	Fort Frances	2.2	57
14	Kenora	2.5	63
15	Red Lake	2.4	60
13	Thunder Bay	2.5	64