Photo: Jfvoll · CC BY-SA 4.0Weather without surprises: Mildmay keeps close to the norm for Canadian towns
A typical year brings 1,035 mm of rain and melted snow, with July afternoons around 25.1°C and January nights around −10.9°C. Counting rain and snow together, it is wetter than 70% of Canadian towns. Rain or snow is most frequent in June and least in March. Windshields need scraping on about 158 mornings a year, the days the air reaches 0°C or below.
These are not Mildmay’s own readings: ECCC keeps no normals there, so the page uses Mount Forest, 36 km east.
A year in Mildmay at a glance
Each month’s typical high and low, in °C.
What stands out about Mildmay’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Mildmay 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
On about 140 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
About 385 cm of snow a year
Snow falls from October to April, most of all in January (about 111 cm). The snowiest of 854 towns of 2,500+ in Ontario.
Snowfall by month
Centimetres
Mount Forest publishes no full year of snowfall, so these figures come from Wiarton, 75 km away.
Heating a home in Mildmay
90% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
A day averaging 10 degrees under 18°C adds 10 to the total; warm days add nothing.
Living with Mildmay’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
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 →Expect around 25 days a year when the wind chill sinks below −20.
About 36 days a year feel above 30 on the humidex.
Thirty-year normals hide the storms and the extremes: the hazards page has Mildmay’s risks.
Flood & hazards →ECCC’s normals location: Mount Forest
Mount Forest is a composite: ECCC joins 2 stations’ readings to make its 1991–2020 normals.
| Distance from the town | 36 km east |
| Station altitude | 404 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Snowfall from | Wiarton, 75 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 | Goderich, 55 km |
How Mildmay compares
Placed among 2,611 Canadian towns and neighbourhoods of 2,500+, each on its nearest normals location; each dot is another location used in Ontario.
Nearby towns’ climate
The nearest places on a normals location of their own: those that share Mildmay’s would only repeat its figures. Distances here run 24–38 km: that is how far the nearest places with figures are from Mildmay.
Mildmay weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and 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: −32.5°C at its coldest, 25.7°C at its warmest
Year to year, February varies most (a standard deviation of 3.1°C around −6.9°C) and June least (1.0°C).
Where Mildmay’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s normals for Mount Forest, 1991–2020, chosen as the nearest location with a full temperature record.
- 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: 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, 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 Mildmay’s climate
How warm does Mildmay get in summer?
The year’s warmest days come in July, with highs averaging 25.1°C.
How cold does Mildmay get in winter?
Expect nights around −11.1°C in February; no month is colder.
How much rain and snow does Mildmay get?
Measured as water, a year brings 1,035 mm: 100 mm in June, the wettest month, and 68 mm in March, the driest.
Are these figures for Mildmay itself?
Not directly: Mildmay has no ECCC normals of its own, and Mount Forest stands in for it.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Mildmay →
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).