Photo: DimiTalen · CC0Summer arrives in force in Niagara-on-the-Lake, hotter than in 88% of Canadian towns
Deep winter brings January lows near −6.8°C. By frosts alone, it ranks gentler than 86% of Canadian towns. Some 34°C separates winter nights from summer afternoons. Plan time outside for May, June, August and September, when highs sit at 19–26°C.
ECCC publishes no normals for Niagara-on-the-Lake itself; the figures are those of Vineland, 25 km west.
A year in Niagara-on-the-Lake at a glance
Each month’s typical high and low, in °C.
What stands out about Niagara-on-the-Lake’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Niagara-on-the-Lake feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
Frost on 117 days, 20°C on 124
The frost season runs October to April, peaking in January at about 27 nights. About 18 days a year top 30°C.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
Rain and melted snow: about 838 mm a year
April is the wettest month and February the driest. About 112 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
About 141 cm of snow a year
Snow falls from November to April, most of all in January (about 44 cm).
Snowfall by month
Centimetres
Snowfall: Welland-Pelham, 28 km away (Vineland records no complete year of it).
Heating a home in Niagara-on-the-Lake
93% of a year’s heating need falls between October and April. Months averaging under 10°C: November to April.
The total grows by a degree for every degree a day’s mean sits under 18°C. A house here needs less heating than 88% of Canadian towns.
Living with Niagara-on-the-Lake’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
Plan time outside for May, Jun, Aug and Sep: highs of 17–27°C and nights no colder than 8°C.
Parks & trails →Winter brings about 11 days with a wind chill below −20.
The air feels heavier than 30 on the humidex for about 61 days a year.
Extremes don’t show in averages: floods, wildfire smoke and ice storms are on Niagara-on-the-Lake’s hazards page.
Flood & hazards →ECCC’s normals location: Vineland
Behind the 1991–2020 normals for Vineland are 2 stations, which ECCC combines into one record.
| Distance from the town | 25 km west |
| Station altitude | 95 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Snowfall from | Welland-Pelham, 28 km |
| Coldest reading, 1991–2020 | −24.5°C |
| Hottest reading, 1991–2020 | 37.4°C |
| Average wind | 12.9 km/h on average, most often from the south-west |
| Next-nearest location | Welland-Pelham, 28 km |
How Niagara-on-the-Lake compares
Compared with 2,611 towns and neighbourhoods of 2,500 or more across Canada; the dots mark the other normals locations in Ontario.
Nearby towns’ climate
The nearest places on a normals location of their own: those that share Niagara-on-the-Lake’s would only repeat its figures.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Niagara-on-the-Lake Vineland | 27.1°C | −6.8°C | 838 mm |
| St. Catharines 11 km · Vineland | 27.1°C about the same | −6.8°C about the same | 838 mm |
| Niagara Falls 14 km · Welland-Pelham | 26.8°C about the same | −8.0°C 1.2°C colder | 967 mm |
Niagara-on-the-Lake weather by month
Average daily high and low, mean temperature, rain and snow (as water) and snowfall by month, 1991–2020.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | 0.2°C | −6.8°C | −3.3°C | 71 mm | 44 cm |
| February | 0.8°C | −6.4°C | −2.9°C | 52 mm | 24 cm |
| March | 5.3°C | −2.6°C | 1.4°C | 62 mm | 28 cm |
| April | 11.6°C | 2.4°C | 7.0°C | 83 mm | 5 cm |
| May | 18.6°C | 8.0°C | 13.3°C | 70 mm | 0 cm |
| June | 24.1°C | 14.0°C | 19.1°C | 78 mm | 0 cm |
| July | 27.1°C | 17.2°C | 22.2°C | 74 mm | 0 cm |
| August | 26.1°C | 16.6°C | 21.4°C | 69 mm | 0 cm |
| September | 22.3°C | 12.9°C | 17.6°C | 69 mm | 0 cm |
| October | 15.5°C | 7.1°C | 11.3°C | 77 mm | under 1 cm |
| November | 8.9°C | 1.5°C | 5.2°C | 72 mm | 9 cm |
| December | 3.2°C | −3.0°C | 0.1°C | 62 mm | 32 cm |
| Year | 13.6°C | 5.1°C | 9.4°C | 838 mm | 141 cm |
February strays furthest from its normal year to year, by 2.8°C; August the least
March has the widest record range, −19.2°C in 2003 to 27.0°C in 1998; the tick on each bar is the month’s normal.
Where Niagara-on-the-Lake’s numbers come from
Averages over 30 years, not a forecast.
- Normals: Environment and Climate Change Canada’s 1991–2020 normals, Vineland: the nearest of its locations with every month’s temperatures.
- Other locations: a location missing months of precipitation or snow is filled from the nearest that has them all, never mixed month by month.
- Comparisons: Canada’s towns and neighbourhoods of 2,500+ (no city totals, no reserves), each through its own nearest location.
- Not on this page: a sunshine figure (ECCC published none for 1991–2020) and any lapse-rate correction for height, as the town has no elevation here.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Niagara-on-the-Lake’s climate
How warm does Niagara-on-the-Lake get in summer?
Expect highs near 27.1°C in July, the hottest month on average.
How cold does Niagara-on-the-Lake get in winter?
The year’s coldest nights belong to January, at about −6.8°C.
How much rain and snow does Niagara-on-the-Lake get?
Precipitation totals 838 mm a year, with April the wettest month (83 mm) and February the driest (52 mm).
Are these figures for Niagara-on-the-Lake itself?
No, they come from Vineland; ECCC keeps no 1991–2020 normals in Niagara-on-the-Lake itself.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Niagara-on-the-Lake →
Adapted from Statistics Canada (Census of Population 2021, population estimates 2025, 2021 census boundaries) under the Statistics Canada Open Licence; this does not constitute an endorsement by Statistics Canada. Neighbourhood names in some cities © OpenStreetMap contributors (ODbL).