Climate averages 1991–2020
Weather in Canada in May
In May, average daytime highs across the 86 cities listed in Canada range from 9.1°C in St. John's to 19.9°C in Kamloops. Monthly rainfall ranges from 38 mm in Victoria to 154 mm in Maple Ridge.
Long-term climate patterns, not a forecast for a particular trip.
City by city
May in Canada
| City | Average highHigh / low | Average low | Rainfall mm | Rain days |
|---|---|---|---|---|
| Toronto | 15.8°C8.0°C | 8.0°C | 72 | 10.1 |
| Montréal | 17.3°C7.1°C | 7.1°C | 100 | 11.9 |
| Calgary | 15.7°C3.0°C | 3.0°C | 72 | 11.3 |
| Ottawa | 18.6°C7.9°C | 7.9°C | 88 | 11.2 |
| Edmonton | 16.2°C5.2°C | 5.2°C | 53 | 8.3 |
| Winnipeg | 16.5°C5.5°C | 5.5°C | 80 | 10.8 |
| Mississauga | 17.7°C8.1°C | 8.1°C | 81 | 10.9 |
| Vancouver | 15.8°C8.4°C | 8.4°C | 117 | 12.5 |
| Brampton | 18.5°C8.0°C | 8.0°C | 79 | 11.0 |
| Hamilton | 17.0°C9.6°C | 9.6°C | 83 | 11.2 |
| Surrey | 16.7°C7.3°C | 7.3°C | 85 | 10.8 |
| Québec | 17.1°C6.7°C | 6.7°C | 101 | 13.1 |
| Halifax | 12.0°C5.8°C | 5.8°C | 83 | 11.2 |
| Laval | 18.4°C8.1°C | 8.1°C | 93 | 11.3 |
| London, Canada | 18.9°C9.0°C | 9.0°C | 98 | 12.5 |
| Etobicoke | 17.0°C8.1°C | 8.1°C | 72 | 10.1 |
| Markham | 17.5°C8.2°C | 8.2°C | 78 | 10.4 |
| Vaughan | 17.5°C7.8°C | 7.8°C | 72 | 10.1 |
| Gatineau | 18.5°C8.1°C | 8.1°C | 88 | 11.2 |
| Victoria | 14.5°C9.0°C | 9.0°C | 38 | 7.0 |
| Saskatoon | 16.8°C5.0°C | 5.0°C | 46 | 7.8 |
| Kitchener | 18.3°C7.5°C | 7.5°C | 88 | 11.6 |
| Burnaby | 16.4°C8.0°C | 8.0°C | 117 | 12.5 |
| Longueuil | 18.5°C8.3°C | 8.3°C | 100 | 11.9 |
| Regina | 16.7°C4.9°C | 4.9°C | 62 | 9.6 |
| Oakville | 16.8°C8.8°C | 8.8°C | 81 | 10.9 |
| Richmond Hill | 17.8°C7.9°C | 7.9°C | 72 | 10.1 |
| Burlington | 17.4°C8.8°C | 8.8°C | 81 | 10.9 |
| Nepean | 18.4°C7.7°C | 7.7°C | 85 | 11.3 |
| Oshawa | 16.1°C8.6°C | 8.6°C | 76 | 11.0 |
| Greater Sudbury | 16.8°C5.8°C | 5.8°C | 72 | 10.6 |
| Gloucester, Canada | 18.4°C7.8°C | 7.8°C | 85 | 11.3 |
| Saguenay | 15.2°C4.0°C | 4.0°C | 92 | 12.7 |
| Coquitlam | 17.4°C7.7°C | 7.7°C | 134 | 13.2 |
| Barrie | 17.4°C7.5°C | 7.5°C | 82 | 10.4 |
| Villeray–Saint-Michel–Parc-Extension | 18.3°C7.8°C | 7.8°C | 100 | 11.9 |
| Kelowna | 19.9°C8.5°C | 8.5°C | 51 | 9.9 |
| Trois-Rivières | 18.0°C8.0°C | 8.0°C | 96 | 12.4 |
| Guelph | 18.3°C7.8°C | 7.8°C | 88 | 11.6 |
| Mercier–Hochelaga-Maisonneuve | 18.5°C8.3°C | 8.3°C | 100 | 11.9 |
| Abbotsford | 16.7°C6.4°C | 6.4°C | 118 | 13.1 |
| Whitby | 16.4°C8.8°C | 8.8°C | 80 | 11.2 |
| St. Catharines | 17.4°C9.5°C | 9.5°C | 83 | 11.4 |
| Milton | 18.5°C8.8°C | 8.8°C | 83 | 11.2 |
| Langley | 17.2°C7.5°C | 7.5°C | 85 | 10.8 |
| Kingston, Canada | 16.4°C9.4°C | 9.4°C | 81 | 11.2 |
| Cambridge, Canada | 18.8°C8.3°C | 8.3°C | 87 | 11.6 |
| Sherbrooke | 17.3°C7.0°C | 7.0°C | 117 | 14.1 |
| Orléans, Canada | 18.3°C7.8°C | 7.8°C | 92 | 11.4 |
| Saint-Louis-de-Terrebonne | 18.1°C7.9°C | 7.9°C | 95 | 11.4 |
| Ajax | 16.5°C8.8°C | 8.8°C | 78 | 10.1 |
| Thornhill | 16.9°C8.2°C | 8.2°C | 72 | 10.1 |
| Terrebonne | 18.4°C8.3°C | 8.3°C | 95 | 11.4 |
| St. John's | 9.1°C2.6°C | 2.6°C | 72 | 11.1 |
| Thunder Bay | 12.5°C4.2°C | 4.2°C | 66 | 10.1 |
| Sydney, Canada | 11.5°C4.7°C | 4.7°C | 86 | 11.7 |
| Waterloo | 18.3°C7.8°C | 7.8°C | 88 | 11.6 |
| Brantford | 19.1°C8.8°C | 8.8°C | 87 | 11.6 |
| Kamloops | 19.9°C8.2°C | 8.2°C | 43 | 9.2 |
| Lethbridge | 17.1°C5.4°C | 5.4°C | 59 | 9.1 |
| Delta | 16.8°C8.8°C | 8.8°C | 69 | 10.1 |
| Chilliwack | 17.5°C8.0°C | 8.0°C | 122 | 14.8 |
| Dartmouth | 13.6°C6.0°C | 6.0°C | 83 | 11.2 |
| Red Deer | 15.5°C4.1°C | 4.1°C | 63 | 10.3 |
| Niagara Falls | 18.3°C9.7°C | 9.7°C | 87 | 12.3 |
| Saint-Jean-sur-Richelieu | 18.4°C8.1°C | 8.1°C | 104 | 12.0 |
| Pickering | 16.1°C8.1°C | 8.1°C | 82 | 11.2 |
| Newmarket | 18.4°C7.9°C | 7.9°C | 80 | 11.2 |
| Nanaimo | 16.1°C9.5°C | 9.5°C | 85 | 12.1 |
| Airdrie | 15.0°C3.2°C | 3.2°C | 75 | 11.1 |
| Kanata | 18.4°C7.6°C | 7.6°C | 83 | 11.3 |
| North Vancouver | 16.1°C8.4°C | 8.4°C | 117 | 12.5 |
| Moncton | 15.3°C5.7°C | 5.7°C | 85 | 12.5 |
| Peterborough, Canada | 18.5°C8.4°C | 8.4°C | 82 | 10.7 |
| Repentigny | 18.4°C8.2°C | 8.2°C | 93 | 11.8 |
| Maple Ridge | 17.1°C7.2°C | 7.2°C | 154 | 14.5 |
| Prince George | 16.8°C5.2°C | 5.2°C | 40 | 9.0 |
| New Westminster | 16.6°C7.1°C | 7.1°C | 117 | 12.5 |
| Caledon | 17.4°C7.0°C | 7.0°C | 83 | 11.6 |
| Stoney Creek | 19.1°C9.0°C | 9.0°C | 83 | 11.2 |
| Pierrefonds-Roxboro | 18.3°C8.3°C | 8.3°C | 93 | 11.3 |
| Sarnia | 18.3°C9.7°C | 9.7°C | 85 | 12.0 |
| Sault Ste. Marie | 15.4°C5.6°C | 5.6°C | 72 | 10.0 |
| Saint John | 13.4°C6.1°C | 6.1°C | 104 | 12.3 |
| Sherwood Park | 15.5°C4.7°C | 4.7°C | 53 | 8.4 |
| Grande Prairie | 15.9°C4.6°C | 4.6°C | 40 | 7.5 |
A rain day is a local calendar day with at least 1 mm of precipitation.