Photo: Onasill ~ Bill - Be Safe & Happy · Public domainIce rarely forms: Port Hope sees fewer frosts than 85% of Canadian towns
The warmest part of a July day comes in at 23.6°C on average. Some 32°C separates winter nights from summer afternoons. Its July afternoons stay fresher than in 72% of Canadian towns. An umbrella or a shovel earns its place on about 114 days a year with 1 mm or more.
The nearest ECCC normals location to Port Hope is Cobourg, 11 km east, and every figure on this page is its.
A year in Port Hope at a glance
Each month’s typical high and low, in °C.
What stands out about Port Hope’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Port Hope feels like
Each season’s and each month’s usual high and low, 1991–2020.
About 126 frosts a year
Frosts fall from October to April; January has the most, about 27.
Frost days by month
Average days at 0°C or below
Rain and melted snow: about 840 mm a year
June is the wettest month and February the driest.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
ECCC’s Cobourg normals leave out precipitation and snow; both come from Peterborough here, 30 km away.
Snowfall: about 158 cm in a normal year
Snow falls from October to April, most of all in January (about 45 cm).
Snowfall by month
Centimetres
Living with Port Hope’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
Mild days and mild nights together (17–27°C by day, 8°C or more at night) belong to Jun, Jul, Aug and Sep.
Parks & trails →Roughly 18 days a year feel colder than −20 in the wind.
About 33 days a year feel above 30 on the humidex.
What averages leave out, the floods and ice storms, is on Port Hope’s hazards page.
Flood & hazards →ECCC’s normals location: Cobourg
Cobourg is one of the 450 places where ECCC publishes 1991–2020 normals.
| Distance from the town | 11 km east |
| Station altitude | 78 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Precipitation from | Peterborough, 30 km |
| Coldest reading, 1991–2020 | −27.4°C |
| Hottest reading, 1991–2020 | 34.0°C |
| Average wind | 11.7 km/h on average, most often from the west |
| Next-nearest location | Peterborough, 30 km |
How Port Hope compares
Against the 2,611 Canadian towns and neighbourhoods of 2,500 or more, each read from its own normals location; the dots are the other locations those towns use in Ontario.
Nearby towns’ climate
The nearest places on a normals location of their own: those that share Port Hope’s would only repeat its figures. No closer places have figures: these lie 25–44 km from Port Hope.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Port Hope Cobourg | 23.6°C | −8.7°C | 840 mm |
| Millbrook 25 km · Peterborough | 26.6°C 3.0°C warmer | −12.8°C 4.1°C colder | 840 mm |
| Bowmanville 32 km · Oshawa | 25.7°C 2.1°C warmer | −8.9°C about the same | 906 mm |
Port Hope 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 | −1.1°C | −8.7°C | −4.9°C | 67 mm | 45 cm |
| February | −0.4°C | −8.1°C | −4.3°C | 42 mm | 27 cm |
| March | 3.4°C | −3.9°C | −0.3°C | 54 mm | 28 cm |
| April | 9.6°C | 2.0°C | 5.8°C | 73 mm | 7 cm |
| May | 15.4°C | 7.4°C | 11.4°C | 79 mm | 0 cm |
| June | 20.4°C | 12.4°C | 16.4°C | 88 mm | 0 cm |
| July | 23.6°C | 15.9°C | 19.8°C | 69 mm | 0 cm |
| August | 23.6°C | 15.8°C | 19.7°C | 78 mm | 0 cm |
| September | 20.4°C | 12.2°C | 16.3°C | 76 mm | 0 cm |
| October | 13.3°C | 6.0°C | 9.6°C | 75 mm | 1 cm |
| November | 7.2°C | 0.3°C | 3.8°C | 76 mm | 17 cm |
| December | 1.8°C | −4.8°C | −1.5°C | 64 mm | 33 cm |
| Year | 11.4°C | 3.9°C | 7.7°C | 840 mm | 158 cm |
March has run from −25.2°C to 18.8°C in thirty years
Year to year, January varies most (a standard deviation of 2.8°C around −4.9°C) and June least (0.9°C).
Where Port Hope’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the Canadian Climate Normals, 1991–2020, at Cobourg (the closest location with all twelve months of temperatures).
- Other locations: precipitation and snowfall come from the nearest location that publishes all twelve months of them, as named above.
- Comparisons: Canadian towns and neighbourhoods of at least 2,500, each placed by its nearest location (city totals and reserves excluded).
- Not on this page: sunshine, which none of ECCC’s 450 locations publishes for 1991–2020, and the town’s own height above sea level, so no figure is adjusted for altitude.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Port Hope’s climate
How warm does Port Hope get in summer?
Highs reach 23.6°C on an average July day; no month is warmer.
How cold does Port Hope get in winter?
Deep winter means January, when nights average −8.7°C.
How much rain and snow does Port Hope get?
Rain and snow add up to about 840 mm of water a year; June brings the most (88 mm), February the least (42 mm).
Are these figures for Port Hope itself?
They come from Cobourg, which ECCC uses as the nearest normals location for Port Hope.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Port Hope →
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).