Photo: mark.watmough from Toronto, Canada · CC BY 2.0Madoc has warmer summer afternoons than 95% of Canadian towns
Midwinter brings lows of about −8.9°C. Only about 131 nights a year bring a frost, fewer than in 82% of Canadian towns. Expect the most rain and snow in June and the least in February. If you like long walks, May, June, August and September offer highs of 19–26°C.
These are not Madoc’s own readings: ECCC keeps no normals there, so the page uses Toronto Pearson (Airport), 10 km east.
A year in Madoc at a glance
Each month’s typical high and low, in °C.
What stands out about Madoc’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Madoc feels like
Each season’s and each month’s usual high and low, 1991–2020.
About 131 frosts and 125 warm days a year
From October to April frost is routine, and in January it comes on almost every night. About 17 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
807 mm of precipitation in a typical year
Some 106 days a year see 1 mm of rain or snow or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
115 cm of snow in a typical year
The snow season runs November to April; January brings the most, about 32 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Madoc
93% of a year’s heating need falls between October and April. Months averaging under 10°C: November to April.
Heating degree days total each day’s gap between its mean temperature and 18°C. Homes here need less heating than 83% of Canadian towns.
Living with Madoc’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
Seedlings can go out once the average last frost, around 27 April, has passed; autumn’s first, near 20 October, ends a season of about 174 days.
For long days outdoors, May, Jun, Aug and Sep bring highs of 17–27°C and lows of 8°C or more.
Parks & trails →A wind chill below −20 is part of about 21 days a year here.
A humidex above 30 marks about 56 days in a normal year.
A normal year has no blizzard, flood or heat wave in it; Madoc’s hazards page looks at those.
Flood & hazards →ECCC’s normals location: Toronto Pearson (Airport)
ECCC builds the Toronto Pearson (Airport) normals from 2 stations’ records over 1991–2020, joined where one replaced another.
| Distance from the town | 10 km east |
| Station altitude | 173 m |
| Completeness | at least 25 years |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −31.0°C |
| Hottest reading, 1991–2020 | 37.9°C |
| Average wind | 15.7 km/h on average, most often from the west |
| Next-nearest location | Toronto (City), 29 km |
How Madoc 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 Madoc’s would only repeat its figures. The nearest places to Madoc with figures are 23–29 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Madoc Toronto Pearson (Airport) | 27.4°C | −8.9°C | 807 mm |
| Vaughan 23 km · Toronto Buttonville (Airport) | 27.3°C about the same | −10.1°C 1.2°C colder | 862 mm |
| Milton 24 km · Burlington Piers | 25.5°C 1.9°C cooler | −6.3°C 2.6°C milder | 807 mm |
| Erin 27 km · Elora | 25.4°C 2.0°C cooler | −10.7°C 1.8°C colder | 807 mm |
| Toronto 29 km · Toronto (City) | 27.0°C about the same | −6.7°C 2.2°C milder | 823 mm |
Madoc weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −1.2°C | −8.9°C | −5.0°C | 62 mm | 32 cm |
| February | −0.3°C | −8.5°C | −4.4°C | 50 mm | 28 cm |
| March | 5.0°C | −3.8°C | 0.6°C | 51 mm | 17 cm |
| April | 12.0°C | 1.9°C | 7.0°C | 77 mm | 5 cm |
| May | 19.2°C | 8.2°C | 13.7°C | 78 mm | under 1 cm |
| June | 24.5°C | 13.9°C | 19.2°C | 81 mm | 0 cm |
| July | 27.4°C | 16.6°C | 22.1°C | 74 mm | 0 cm |
| August | 26.3°C | 15.8°C | 21.1°C | 69 mm | 0 cm |
| September | 22.3°C | 11.6°C | 16.9°C | 69 mm | 0 cm |
| October | 14.6°C | 5.3°C | 10.0°C | 67 mm | under 1 cm |
| November | 7.9°C | 0.2°C | 4.1°C | 72 mm | 9 cm |
| December | 1.9°C | −5.0°C | −1.6°C | 59 mm | 24 cm |
| Year | 13.3°C | 3.9°C | 8.6°C | 807 mm | 115 cm |
January varies most from one year to the next (3.0°C), June least
March has the widest record range, −24.7°C in 2003 to 26.0°C in 2012; the tick on each bar is the month’s normal.
Where Madoc’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s 1991–2020 Canadian Climate Normals for Toronto Pearson (Airport), the nearest location with a full year of temperatures.
- Comparisons: the 2,500-plus towns and neighbourhoods of Canada, each read from its closest normals location; whole cities and reserves aren’t counted.
- 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 Madoc’s climate
How warm does Madoc get in summer?
July is the warmest month, with average highs of 27.4°C.
How cold does Madoc get in winter?
The coldest nights come in January, averaging −8.9°C.
How much rain and snow does Madoc get?
Rain and snow add up to about 807 mm of water a year; June brings the most (81 mm), February the least (50 mm).
How long does snow stay on the ground?
The ground is white, with 1 cm or more, on some 69 days a year.
Are these figures for Madoc itself?
No: Madoc has no normals location, so the figures come from Toronto Pearson (Airport), the nearest with 1991–2020 normals.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Madoc →
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).