Sunshine in Ontario: Average Hours and Days a Year





The tables below list yearly averages for the number of sunny days and hours of sunshine at cities and towns in Ontario.

The places are grouped into a separate table for each region of the province: Eastern, Central, Southwestern, Northeastern and Northwestern Ontario.

The tables give several measures of sunshine. The number for % Sun is the usual percentage of daylight hours with bright sunshine.

Hours gives the total hours of bright sunshine that's normal during a year. Days statistics are for the typical number of days annually with any amount of measurable sunshine. All the data are averages for the years 1981 to 2010.

Eastern Ontario

Total annual sunshine
% Sun Place Hours Days
41 Cornwall 1904 283
42 Kingston 1959 296
45 Ottawa 2084 304
41 Pembroke 1912 298

Central Ontario

Average amount of sunshine yearly
% Sun Place Hours Days
45 Hamilton 2111 301
43 Peterborough 1999 296
43 St Catharines 2023 301
44 Toronto 2066 305

Southwestern Ontario

Annual average sun
% Sun Place Hours Days
42 Guelph 1948 299
38 London 1793 286
44 Sarnia 2061 288

Northeastern Ontario

The northeastern region of Ontario stretches from the shores of Lake Huron to James Bay. South Baymouth and Gore Bay are on Manitoulin Island in Lake Huron, while Moosonee is near the south end of James Bay.

Number of sunny hours and days a year on average
% Sun Place Hours Days
37 Kapuskasing 1764 282
39 Moosonee 1811 288
41 North Bay 1922 287
41 Sault Ste Marie 1920 287
43 South Baymouth 2040 291
42 Sudbury 1973 293

Northwestern Ontario

Average total sunshine yearly
% Sun Place Hours Days
40 Big Trout Lake 1870 294
45 Red Lake 2082 302
46 Thunder Bay 2121 305
Reference

Environment Canada. Meteorological Service of Canada. Canadian Climate Normals. 1981-2010 Climate Normals & Averages.

Ontario Sunshine
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