Photo: JFVoll · CC BY-SA 4.0Neither notably warm, cold, wet nor dry, Hanover sits near the middle of Canadian towns
A typical July afternoon reaches 25.1°C, a January night drops to −10.9°C, and 1,035 mm of rain and snow falls in a year. Rain and snow are spread evenly through the year: the wettest month, June, gets little more than the driest, March. Its yearly rain and snow top those of 70% of Canadian towns. Plan time outside from June to September, when highs sit at 21–25°C.
These are not Hanover’s own readings: ECCC keeps no normals there, so the page uses Mount Forest, 30 km south-east.
A year in Hanover at a glance
Each month’s typical high and low, in °C.
What stands out about Hanover’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Hanover feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
About 158 frosts and 111 warm days a year
Frost comes from October to May; in January almost every night freezes. Some 8 nights a year drop under −20°C.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
About 1,035 mm of rain and snow a year
Some 140 days a year see 1 mm of rain or snow or more.
Rain and snow by month
Millimetres
385 cm of snow in a typical year
From October to April snow is likely; January is the peak, at about 111 cm. The snowiest of 854 towns of 2,500+ in Ontario.
Snowfall by month
Centimetres
Snowfall: Wiarton, 66 km away (Mount Forest records no complete year of it).
Heating a home in Hanover
90% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
The count adds up, day by day, how far the mean temperature falls short of 18°C.
Living with Hanover’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
Highs of 17–27°C with nights of 8°C or more come in Jun, Jul, Aug and Sep.
Parks & trails →Expect around 25 days a year when the wind chill sinks below −20.
About 36 days a year turn sultry, with the humidex past 30.
What averages leave out, the floods and ice storms, is on Hanover’s hazards page.
Flood & hazards →ECCC’s normals location: Mount Forest
Behind the 1991–2020 normals for Mount Forest are 2 stations, which ECCC combines into one record.
| Distance from the town | 30 km south-east |
| Station altitude | 404 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Snowfall from | Wiarton, 66 km |
| Coldest reading, 1991–2020 | −32.5°C |
| Hottest reading, 1991–2020 | 34.5°C |
| Average wind | 10.7 km/h on average, most often from the south |
| Next-nearest location | Wiarton, 66 km |
How Hanover 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
Places around Hanover whose figures come from another normals location. The nearest places to Hanover with figures are 27–44 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Hanover Mount Forest | 25.1°C | −10.9°C | 1,035 mm |
| Chesley 27 km · Wiarton | 24.3°C 0.8°C cooler | −9.9°C 1.0°C milder | 1,074 mm |
| Morris-Turnberry 38 km · Goderich | 24.4°C 0.7°C cooler | −7.8°C 3.1°C milder | 1,035 mm |
Hanover weather by month
Month by month, 1991–2020: the usual high, low and mean, the rain and snow, and the snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −3.3°C | −10.9°C | −7.1°C | 92 mm | 111 cm |
| February | −2.6°C | −11.1°C | −6.9°C | 73 mm | 74 cm |
| March | 2.5°C | −6.5°C | −2.0°C | 68 mm | 38 cm |
| April | 10.2°C | −0.2°C | 5.0°C | 74 mm | 18 cm |
| May | 17.7°C | 6.4°C | 12.0°C | 98 mm | 1 cm |
| June | 22.8°C | 11.7°C | 17.3°C | 100 mm | 0 cm |
| July | 25.1°C | 13.6°C | 19.4°C | 98 mm | 0 cm |
| August | 24.2°C | 13.1°C | 18.7°C | 84 mm | 0 cm |
| September | 20.5°C | 9.6°C | 15.1°C | 85 mm | 0 cm |
| October | 13.0°C | 4.1°C | 8.5°C | 81 mm | 5 cm |
| November | 5.5°C | −1.5°C | 2.0°C | 92 mm | 48 cm |
| December | −0.5°C | −6.7°C | −3.6°C | 90 mm | 92 cm |
| Year | 11.2°C | 1.8°C | 6.5°C | 1,035 mm | 385 cm |
March has run from −32.5°C to 25.7°C in thirty years
From one year to the next, February’s average typically shifts by 3.1°C around its normal of −6.9°C, the widest of any month, while June’s shifts by 1.0°C.
Where Hanover’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the closest ECCC location with twelve months of temperature normals, Mount Forest, 1991–2020.
- Other locations: where a location publishes no full year of precipitation or snowfall, the nearest one that does supplies it, named beside those figures.
- Comparisons: every Canadian town and neighbourhood of 2,500 or more, each read from its own nearest location; city totals and reserves are left out.
- Not on this page: sunshine, not in ECCC’s 1991–2020 normals, and the effect of the town’s height, for which there is no figure.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Hanover’s climate
How warm does Hanover get in summer?
Highs reach 25.1°C on an average July day; no month is warmer.
How cold does Hanover get in winter?
At its coldest, in February, the normal low is −11.1°C.
How much rain and snow does Hanover get?
Some 1,035 mm falls in a year. Most of it comes in June (100 mm), the least in March (68 mm).
Are these figures for Hanover itself?
Not quite: they come from Mount Forest, the closest ECCC normals location to Hanover.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Hanover →
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).