Ontario, Canada: Weather Records

492,972 weather records still stand at 428 stations in Ontario, Canada, with standing records by year and every station.

Key Facts for Ontario

Ontario in Canada has 428 stations in the data, and 492,972 records set at them still stand.
1983 holds the most standing records in Ontario: 19,685.

Which Years Hold Standing Records

492,972 standing records

492,972 records at stations in Ontario still stand. 1983 holds the most, with 19,685.

Standing records in Ontario by the year they were set
Year set	Standing records
1840	6
1841	12
1842	15
1843	13
1844	14
1845	19
1846	8
1847	19
1848	13
1849	10
1850	10
1851	10
1852	9
1853	14
1854	16
1855	17
1856	19
1857	21
1858	10
1859	16
1860	14
1861	10
1862	13
1863	3
1864	6
1865	20
1866	179
1867	230
1868	272
1869	241
1870	85
1871	385
1872	394
1873	591
1874	516
1875	945
1876	977
1877	753
1878	856
1879	1,465
1880	1,171
1881	1,193
1882	1,385
1883	1,383
1884	1,507
1885	1,946
1886	1,184
1887	1,289
1888	1,589
1889	1,259
1890	1,087
1891	1,384
1892	1,057
1893	1,085
1894	1,655
1895	2,169
1896	1,592
1897	1,141
1898	1,290
1899	1,727
1900	2,374
1901	1,557
1902	1,814
1903	2,317
1904	1,892
1905	1,493
1906	2,232
1907	1,905
1908	1,736
1909	2,156
1910	1,884
1911	2,470
1912	2,037
1913	2,678
1914	3,627
1915	3,069
1916	4,133
1917	3,638
1918	4,106
1919	3,948
1920	3,687
1921	4,015
1922	2,825
1923	3,524
1924	2,430
1925	3,760
1926	3,220
1927	2,691
1928	2,476
1929	3,137
1930	4,079
1931	3,731
1932	3,392
1933	4,415
1934	4,483
1935	3,061
1936	5,217
1937	2,574
1938	3,229
1939	3,064
1940	3,681
1941	3,381
1942	3,750
1943	3,573
1944	3,466
1945	5,320
1946	5,202
1947	5,008
1948	4,113
1949	4,843
1950	5,133
1951	4,893
1952	3,482
1953	4,781
1954	4,217
1955	5,492
1956	6,168
1957	5,162
1958	4,754
1959	6,171
1960	3,825
1961	4,238
1962	5,959
1963	6,963
1964	7,738
1965	7,916
1966	6,946
1967	8,122
1968	7,821
1969	7,439
1970	9,218
1971	8,426
1972	8,888
1973	12,085
1974	9,820
1975	11,712
1976	14,152
1977	12,765
1978	10,654
1979	15,484
1980	13,022
1981	15,411
1982	15,698
1983	19,685

Top Records by Significance

Stations

428

Stations in Ontario
Station	Record from	Years	Thresholds
Big Trout Lake	1939	54 years	Threshold days
Ear Falls	1928	72 years	Threshold days
Fort Hope	1891	40 years	Threshold days
Lansdowne House	1941	49 years	Threshold days
Lansdowne House (Aut)	1992	35 years	Threshold days
Peawanuck (Aut)	1981	46 years	Threshold days
Pickle Lake (Aut)	1930	97 years	Threshold days
Red Lake A	1930	83 years	Threshold days
Atikokan Cli	1914	58 years	Threshold days
Barwick	1978	47 years	Threshold days
Emo	1922	47 years	Threshold days
Fort Frances	1892	104 years	Threshold days
Fort Frances A	1976	36 years	Threshold days
Mine Centre	1914	92 years	Threshold days
Rainy River	1914	90 years	Threshold days
Dryden	1914	84 years	Threshold days
Dryden A	1970	36 years	Threshold days
Ignace	1889	83 years	Threshold days
Kenora	1883	57 years	Threshold days
Kenora A	1938	76 years	Threshold days
Minaki	1930	38 years	Threshold days
Rawson Lake	1969	56 years	Threshold days
Sioux Lookout A	1938	88 years	Threshold days
Whitefish Bay	1914	33 years	Threshold days
Armstrong (Aut)	1938	89 years	Threshold days
Cameron Falls	1924	75 years	Threshold days
Caramat	1949	35 years	Threshold days
Caribou Island	1935	54 years	Threshold days
Caribou Island (Aut)	1993	34 years	Threshold days
Dog Lake Dam	1923	36 years	Threshold days
Dona	1926	33 years	Threshold days
Geraldton A	1981	45 years	Threshold days
Flint	1979	36 years	Threshold days
Heron Bay	1886	35 years	Threshold days
Kakabeka Falls	1908	70 years	Threshold days
Lakehead University	1968	35 years	Threshold days
Longlac	1921	37 years	Threshold days
Macdiarmid	1926	45 years	Threshold days
Manitouwadge	1956	40 years	Threshold days
Marathon	1945	40 years	Threshold days
Nakina Forestry	1929	31 years	Threshold days
Nipigon	1886	37 years	Threshold days
Port Arthur	1877	65 years	Threshold days
Quorn	1915	46 years	Threshold days
Savanne	1884	71 years	Threshold days
Schreiber	1893	83 years	Threshold days
Thunder Bay A	1941	64 years	Threshold days
Upsala (Aut)	1973	54 years	Threshold days
Welcome Island (Aut)	1967	60 years	Threshold days
Thunder Bay Wpcp	1960	30 years	Threshold days
Blind River	1926	34 years	Threshold days
Franz	1917	44 years	Threshold days
Hornepayne	1917	73 years	Threshold days
Michipicoten Falls	1882	47 years	Threshold days
Sault Ste Marie 2	1957	46 years	Threshold days
Sault Ste Marie A	1945	68 years	Threshold days
Sault Ste M Forestry	1889	45 years	Threshold days
Searchmont	1915	61 years	Threshold days
Wawa (Aut)	1940	67 years	Threshold days
White River	1886	91 years	Threshold days
Wawa A	1977	38 years	Threshold days
Killarney (Aut)	1992	31 years	Threshold days
Biscotasing	1914	87 years	Threshold days
Cartier	1886	63 years	Threshold days
Chapleau 2	1886	81 years	Threshold days
Chapleau A	1978	38 years	Threshold days
Coniston	1921	56 years	Threshold days
Coniston Stp	1962	41 years	Threshold days
Copper Cliff	1906	63 years	Threshold days
Foleyet	1931	44 years	Threshold days
Massey	1983	42 years	Threshold days
Monetville	1963	50 years	Threshold days
Ruel	1915	45 years	Threshold days
Sudbury Climate	1977	50 years	Threshold days
Sudbury	1887	91 years	Threshold days
Sudbury A	1954	60 years	Threshold days
Turbine	1914	77 years	Threshold days
Abitibi Canyon	1931	33 years	Threshold days
Bonner Lake	1990	35 years	Threshold days
Cochrane	1910	84 years	Threshold days
Earlton A	1938	68 years	Threshold days
Englehart	1948	53 years	Threshold days
Haileybury	1893	85 years	Threshold days
Heaslip	1928	40 years	Threshold days
Iroquois Falls	1913	86 years	Threshold days
Island Falls	1955	42 years	Threshold days
Kapuskasing Cda	1918	84 years	Threshold days
Kapuskasing A	1937	89 years	Threshold days
Kirkland Lake	1950	47 years	Threshold days
Mattice Tcpl	1966	30 years	Threshold days
Montreal River	1910	58 years	Threshold days
Moose Factory	1877	62 years	Threshold days
Moosonee Ua	1932	92 years	Threshold days
Nagagami (Aut)	1982	45 years	Threshold days
New Liskeard	1923	62 years	Threshold days
Porcupine Ont Hydro	1969	33 years	Threshold days
Smoky Falls	1933	65 years	Threshold days
Timmins	1922	36 years	Threshold days
Timmins Victor Power A	1955	58 years	Threshold days
Wawaitin	1913	53 years	Threshold days
Algonquin Park	1917	44 years	Threshold days
Bear Island	1916	47 years	Threshold days
Crystal Falls	1922	67 years	Threshold days
Dwight	1973	33 years	Threshold days
French R Chaudiere Dam	1969	35 years	Threshold days
Madawaska	1915	86 years	Threshold days
North Bay	1887	96 years	Threshold days
North Bay A	1939	87 years	Threshold days
Rutherglen	1891	50 years	Threshold days
Sturgeon Falls	1883	120 years	Threshold days
Gore Bay	1881	103 years	Threshold days
Gore Bay A	1947	60 years	Threshold days
Providence Bay	1897	44 years	Threshold days
South Baymouth	1954	40 years	Threshold days
Almonte	1912	69 years	Threshold days
Appleton	1992	33 years	Threshold days
Arnprior Grandon	1959	41 years	Threshold days
Avonmore	1976	31 years	Threshold days
Brockville	1871	110 years	Threshold days
Brockville Pcc	1965	59 years	Threshold days
Cardinal	1970	31 years	Threshold days
Cataraqui Ts	1960	36 years	Threshold days
Chalk River Aecl	1960	65 years	Threshold days
Chats Falls	1950	43 years	Threshold days
Chenaux	1950	41 years	Threshold days
Claybank	1961	34 years	Threshold days
Clontarf	1882	76 years	Threshold days
Combermere	1956	51 years	Threshold days
Cornwall	1950	75 years	Threshold days
Cornwall Ont Hydro	1954	42 years	Threshold days
Dalhousie L High Falls	1923	61 years	Threshold days
Dalhousie Mills	1968	37 years	Threshold days
Fitzroy Harbour	1870	37 years	Threshold days
Glen Gordon	1967	33 years	Threshold days
Drummond Centre	1984	41 years	Threshold days
Grenadier Island	1994	33 years	Threshold days
Hartington Ihd	1967	58 years	Threshold days
Kemptville	1928	70 years	Threshold days
Kemptville CS	1997	30 years	Threshold days
Killaloe	1938	35 years	Threshold days
Kingston A	1930	67 years	Threshold days
Kingston Pumping Station	1960	48 years	Threshold days
Kingston Queens U	1872	86 years	Threshold days
Lyndhurst Shawmere	1976	46 years	Threshold days
Maccue	1883	36 years	Threshold days
Morrisburg	1913	96 years	Threshold days
Ompah-Seitz	1994	31 years	Threshold days
Ottawa	1872	64 years	Threshold days
Ottawa Cda	1889	136 years	Threshold days
Ottawa Macdonald-Cartier Int'l	1938	74 years	Threshold days
Ottawa Nrc	1951	34 years	Threshold days
Pembroke Eddy Match	1866	104 years	Threshold days
Petawawa A	1970	39 years	Threshold days
Petawawa Nat Forestry	1931	69 years	Threshold days
Purdy	1955	39 years	Threshold days
Renfrew	1882	48 years	Threshold days
Renfrew Sand Point	1929	31 years	Threshold days
Russell	1954	60 years	Threshold days
St. Albert	1986	39 years	Threshold days
South Mountain	1960	37 years	Threshold days
Stonecliffe	1876	46 years	Threshold days
Vankleek Hill	1896	66 years	Threshold days
Petawawa Hoffman	1993	32 years	Threshold days
Alliston Nelson	1973	34 years	Threshold days
Angus	1930	36 years	Threshold days
Barrie	1866	93 years	Threshold days
Barrie Wpcc	1968	42 years	Threshold days
Beatrice	1876	104 years	Threshold days
Beatrice 2	1979	30 years	Threshold days
Beeton	1916	55 years	Threshold days
Big Chute	1913	60 years	Threshold days
Bingham Chute	1933	38 years	Threshold days
Burks Falls	1888	99 years	Threshold days
Chatsworth	1952	62 years	Threshold days
Coldwater	1883	72 years	Threshold days
Coldwater Warminster	1971	54 years	Threshold days
Collingwood	1994	30 years	Threshold days
Collingwood	1869	106 years	Threshold days
Cookstown	1972	35 years	Threshold days
Dunchurch	1973	42 years	Threshold days
Durham	1882	122 years	Threshold days
Emsdale	1895	58 years	Threshold days
Essa Ont Hydro	1958	44 years	Threshold days
Eugenia	1916	54 years	Threshold days
Gravenhurst	1870	80 years	Threshold days
Hanover	1972	35 years	Threshold days
Honey Hbr Beausoleil	1974	30 years	Threshold days
Huntsville	1879	83 years	Threshold days
Huntsville Wpcp	1960	44 years	Threshold days
Lagoon City	1995	32 years	Threshold days
Magnetawan	1924	35 years	Threshold days
Meaford	1899	68 years	Threshold days
Midhurst	1947	50 years	Threshold days
Midland Water Pollution Contro	1889	129 years	Threshold days
Muskoka A	1934	82 years	Threshold days
Orillia	1871	91 years	Threshold days
Orillia Brain	1992	33 years	Threshold days
Owen Sound	1878	85 years	Threshold days
Owen Sound Moe	1964	44 years	Threshold days
Parry Sound	1874	103 years	Threshold days
Powassan	1974	37 years	Threshold days
Priceville	1980	35 years	Threshold days
Proton Station	1969	34 years	Threshold days
Scotia	1924	55 years	Threshold days
Shanty Bay	1973	52 years	Threshold days
South Falls	1920	52 years	Threshold days
Sutton West	1871	38 years	Threshold days
Udora	1989	36 years	Threshold days
Washago	1927	44 years	Threshold days
Wiarton	1883	54 years	Threshold days
Wiarton A	1947	68 years	Threshold days
Western Island (Aut)	1995	32 years	Threshold days
Thornbury Slama	1968	38 years	Threshold days
Arkona	1882	34 years	Threshold days
Blyth	1959	51 years	Threshold days
Brucefield	1903	91 years	Threshold days
Exeter	1961	48 years	Threshold days
Forest	1924	68 years	Threshold days
Goderich	1866	85 years	Threshold days
Goderich	1981	46 years	Threshold days
Goderich Lighthouse	1874	38 years	Threshold days
Goderich Township	1912	59 years	Threshold days
Kincardine	1870	153 years	Threshold days
Lucknow	1885	109 years	Threshold days
North Bruce	1888	35 years	Threshold days
Paisley	1961	32 years	Threshold days
Petrolia Town	1960	46 years	Threshold days
Point Clark	1871	43 years	Threshold days
Sarnia	1882	80 years	Threshold days
Sarnia Airport	1967	41 years	Threshold days
Southampton	1872	111 years	Threshold days
Tobermory	1888	96 years	Threshold days
Walkerton	1902	70 years	Threshold days
Watford	1883	79 years	Threshold days
Wroxeter	1966	56 years	Threshold days
Wyoming	1871	37 years	Threshold days
Amherstburg	1988	37 years	Threshold days
Aylmer	1948	34 years	Threshold days
Caledonia	1931	36 years	Threshold days
Chatham	1933	35 years	Threshold days
Chatham 2	1879	68 years	Threshold days
Chatham Wpcp	1983	37 years	Threshold days
Cottam	1882	45 years	Threshold days
Delhi Cda	1934	64 years	Threshold days
Delhi CS	1997	30 years	Threshold days
Dresden	1956	41 years	Threshold days
Dunnville	1899	64 years	Threshold days
Dutton	1883	32 years	Threshold days
Fort Erie	1966	57 years	Threshold days
Grimsby	1910	76 years	Threshold days
Grimsby Rock Chapel	1914	53 years	Threshold days
Hagersville	1948	57 years	Threshold days
Harrow Cda	1917	77 years	Threshold days
Kingsville Moe	1960	65 years	Threshold days
Leamington	1916	63 years	Threshold days
Long Point	1936	50 years	Threshold days
New Glasgow	1957	68 years	Threshold days
Niagara Falls	1902	94 years	Threshold days
Niagara Falls Npcsh	1980	32 years	Threshold days
Niagara Falls Ont Hydro	1921	52 years	Threshold days
Pelee Island	1888	100 years	Threshold days
Port Colborne	1964	61 years	Threshold days
Port Dalhousie	1874	123 years	Threshold days
Port Dover	1874	110 years	Threshold days
Port Stanley	1871	123 years	Threshold days
Port Weller (Aut)	1992	35 years	Threshold days
Ridgetown	1883	104 years	Threshold days
Ridgeville	1950	73 years	Threshold days
St Catharines	1882	114 years	Threshold days
St Catharines A	1971	30 years	Threshold days
St Catharines Brock U	1967	51 years	Threshold days
St Catharines Cda	1928	37 years	Threshold days
St Catharines Power Glen	1965	42 years	Threshold days
St Thomas	1882	99 years	Threshold days
St Thomas Wpcp	1980	45 years	Threshold days
St Williams	1954	35 years	Threshold days
Simcoe	1866	96 years	Threshold days
Tillsonburg Wwtp	1962	63 years	Threshold days
Vineland	1993	30 years	Threshold days
Vineland Rittenhouse	1965	37 years	Threshold days
Vineland Station	1924	65 years	Threshold days
Wallaceburg	1905	93 years	Threshold days
Waterford	1971	44 years	Threshold days
Welland	1872	143 years	Threshold days
Windsor Riverside	1866	159 years	Threshold days
Windsor A	1940	75 years	Threshold days
Woodslee Cda	1946	41 years	Threshold days
Port Colborne (Aut)	1992	32 years	Threshold days
Erieau (Aut)	1992	30 years	Threshold days
Brantford	1876	88 years	Threshold days
Brantford Moe	1960	54 years	Threshold days
Cambridge Galt Moe	1879	116 years	Threshold days
Culloden Easey	1974	33 years	Threshold days
Dorchester	1976	42 years	Threshold days
Elmira	1955	40 years	Threshold days
Elora	1882	42 years	Threshold days
Elora Research STN	1969	57 years	Threshold days
Fergus Shand Dam	1939	86 years	Threshold days
Fergus Moe	1962	63 years	Threshold days
Foldens	1963	54 years	Threshold days
Glen Allan	1955	70 years	Threshold days
Grand Valley	1910	30 years	Threshold days
Guelph Oac	1881	93 years	Threshold days
Ilderton Bear Creek	1971	31 years	Threshold days
Ingersoll	1870	100 years	Threshold days
Kitchener	1914	64 years	Threshold days
Listowel	1880	87 years	Threshold days
London Int'l Airport	1940	78 years	Threshold days
London Sharon Drive	1956	38 years	Threshold days
London South	1883	50 years	Threshold days
Lucan	1871	105 years	Threshold days
Monticello	1954	42 years	Threshold days
Mount Forest	1891	96 years	Threshold days
Mount Forest (Aut)	1992	35 years	Threshold days
Paris	1870	98 years	Threshold days
Preston	1953	44 years	Threshold days
Princeton	1883	31 years	Threshold days
Redickville	1944	42 years	Threshold days
Roseville	1972	53 years	Threshold days
Scotland	1971	44 years	Threshold days
Stratford	1865	95 years	Threshold days
Stratford Wwtp	1959	58 years	Threshold days
Strathroy	1879	118 years	Threshold days
Waldemar	1955	31 years	Threshold days
Waterloo Wpcp	1962	39 years	Threshold days
Waterloo Wellington A	1970	33 years	Threshold days
Westminster	1882	52 years	Threshold days
Westminster Twp Wpcp	1961	34 years	Threshold days
Woodstock	1870	155 years	Threshold days
Albion	1956	45 years	Threshold days
Albion Field Centre	1969	33 years	Threshold days
Aldershot	1947	31 years	Threshold days
Alton	1887	78 years	Threshold days
Aurora	1883	37 years	Threshold days
Belleville	1866	159 years	Threshold days
Belleville Par Lab	1929	31 years	Threshold days
Bloomfield	1896	119 years	Threshold days
Bloomfield West	1966	32 years	Threshold days
Bowmanville Mostert	1966	37 years	Threshold days
Brampton	1870	95 years	Threshold days
Brampton Moe	1962	32 years	Threshold days
Burketon McLaughlin	1969	34 years	Threshold days
Burlington Piers (Aut)	1992	35 years	Threshold days
Burlington Ts	1951	49 years	Threshold days
Campbellford	1915	83 years	Threshold days
Centreville	1985	40 years	Threshold days
Claremont	1962	30 years	Threshold days
Cobourg (Aut)	1992	35 years	Threshold days
Cobourg Stp	1970	55 years	Threshold days
Cold Creek	1961	31 years	Threshold days
Cressy	1966	37 years	Threshold days
Frankford Moe	1959	36 years	Threshold days
Frenchmans Bay	1959	46 years	Threshold days
Georgetown	1882	85 years	Threshold days
Georgetown Wwtp	1962	63 years	Threshold days
Glen Haffy Mono Mills	1959	45 years	Threshold days
Greenwood Mtrca	1960	34 years	Threshold days
Hamilton	1866	93 years	Threshold days
Hamilton A	1959	53 years	Threshold days
Hamilton Psych Hospital	1960	34 years	Threshold days
Hamilton Rbg	1950	48 years	Threshold days
Hamilton Rbg CS	1997	30 years	Threshold days
Heart Lake	1957	33 years	Threshold days
King Smoke Tree	1974	30 years	Threshold days
Lakeview Moe	1963	32 years	Threshold days
Madoc	1903	67 years	Threshold days
Meyersburg	1930	42 years	Threshold days
Millgrove	1951	56 years	Threshold days
Newmarket	1871	97 years	Threshold days
Oak Ridges	1918	62 years	Threshold days
Orangeville	1883	85 years	Threshold days
Orangeville Moe	1961	55 years	Threshold days
Orono	1923	74 years	Threshold days
Oshawa	1882	78 years	Threshold days
Oshawa Wpcp	1969	55 years	Threshold days
Picton	1915	81 years	Threshold days
Pine Grove	1957	40 years	Threshold days
Point Petre (Aut)	1992	35 years	Threshold days
Port Credit	1871	89 years	Threshold days
Port Hope	1882	111 years	Threshold days
Richmond Hill	1959	56 years	Threshold days
Rouge Park	1960	34 years	Threshold days
Sandhill	1981	30 years	Threshold days
Scarborough Junction	1883	30 years	Threshold days
Sharon	1886	114 years	Threshold days
Smithfield Cda	1949	42 years	Threshold days
Stoney Creek	1884	44 years	Threshold days
Thornhill Grandview	1965	42 years	Threshold days
Toronto	1840	178 years	Threshold days
Toronto Agincourt	1895	74 years	Threshold days
Toronto Ashbridges Bay	1958	40 years	Threshold days
Toronto Deer Park	1890	44 years	Threshold days
Toronto Ellesmere	1959	36 years	Threshold days
Toronto Island	1905	55 years	Threshold days
Toronto Island A	1957	50 years	Threshold days
Toronto Lester B. Pearson Int'	1937	77 years	Threshold days
Toronto Sunnybrook	1962	32 years	Threshold days
Toronto West Hill	1951	36 years	Threshold days
Trenton A	1935	92 years	Threshold days
Trenton Ont Hydro	1915	78 years	Threshold days
Tweed	1925	48 years	Threshold days
Tyrone	1967	33 years	Threshold days
Uxbridge	1899	52 years	Threshold days
Uxbridge 2	1948	30 years	Threshold days
Wellington	1948	44 years	Threshold days
Woodbridge	1948	58 years	Threshold days
Mountainview	1986	33 years	Threshold days
Toronto Buttonville A	1986	30 years	Threshold days
Oakville Southeast Wpcp	1970	32 years	Threshold days
Toronto North York	1994	31 years	Threshold days
Apsley	1922	36 years	Threshold days
Bancroft	1882	104 years	Threshold days
Fenelon Falls	1915	56 years	Threshold days
Haliburton A	1883	110 years	Threshold days
Haliburton 3	1987	37 years	Threshold days
Kinmount	1897	54 years	Threshold days
Lakefield	1874	117 years	Threshold days
Lindsay	1880	92 years	Threshold days
Lindsay Frost	1974	36 years	Threshold days
Minden	1883	129 years	Threshold days
Norwood	1875	106 years	Threshold days
Peterborough	1866	105 years	Threshold days
Peterborough A	1969	39 years	Threshold days
Peterborough Dobbin Ts	1965	30 years	Threshold days
Peterborough Stp	1964	30 years	Threshold days
Peterborough Trent U	1968	45 years	Threshold days
Queensboro	1914	33 years	Threshold days
Bancroft Auto	1995	32 years	Threshold days

Download the Data

Data for Ontario standing records by year: CSV or JSON. Field meanings are on the data page.

Sources: Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Made with Natural Earth. Public domain map data. Borders are Natural Earth's de facto depiction. Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-17. Last revised 18 October 2026 (2026-10-18).