Summer arrives in force in Henry Farm, hotter than in 91% of Canadian towns
In January the night’s low is typically −10.1°C. Precipitation peaks in June and eases off in February. Frosty nights are scarcer than in 70% of Canadian towns. Plan for rain or snow on about 113 days a year, the days with 1 mm or more.
Read at Toronto Buttonville (Airport), 9.9 km north: ECCC’s normals for 1991–2020.
A year in Henry Farm at a glance
Each month’s typical high and low, in °C.
What stands out about Henry Farm’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Henry Farm feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
About 145 frosts and 126 warm days a year
From October to May frost is routine, and in January it comes on almost every night. Some 6 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
862 mm of precipitation in a typical year
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Snowfall: about 146 cm in a normal year
From November to April snow is likely; January is the peak, at about 40 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Henry Farm
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Heating degree days total each day’s gap between its mean temperature and 18°C. In heating terms, homes need less heating than 74% of Canadian towns.
Living with Henry Farm’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
Tender plants are usually safe from around 3 May until frost returns near 13 October: about 161 days.
Plan time outside for Jun, Aug and Sep: highs of 17–27°C and nights no colder than 8°C.
Parks & trails →Expect around 22 days a year when the wind chill sinks below −20.
The humidex tops 30 on about 55 days a year: muggy days to plan around.
Bad-weather days, from blizzards to floods, get their own page for Henry Farm: the hazards page.
Flood & hazards →ECCC’s normals location: Toronto Buttonville (Airport)
Toronto Buttonville (Airport) is a composite: ECCC joins 3 stations’ readings to make its 1991–2020 normals.
| Distance from the town | 9.9 km north |
| Station altitude | 198 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −35.2°C |
| Hottest reading, 1991–2020 | 37.8°C |
| Average wind | 12.2 km/h on average, most often from the north |
| Next-nearest location | Toronto (City), 12 km |
How Henry Farm 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 Henry Farm’s would only repeat its figures. Henry Farm has few close neighbours with figures, so the list reaches 7–27 km out.
Henry Farm 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 | −1.7°C | −10.1°C | −6.0°C | 64 mm | 40 cm |
| February | −1.0°C | −10.1°C | −5.6°C | 51 mm | 34 cm |
| March | 4.6°C | −5.0°C | −0.2°C | 52 mm | 20 cm |
| April | 11.8°C | 1.2°C | 6.5°C | 79 mm | 7 cm |
| May | 19.3°C | 7.4°C | 13.4°C | 80 mm | under 1 cm |
| June | 24.6°C | 13.0°C | 18.8°C | 87 mm | 0 cm |
| July | 27.3°C | 15.6°C | 21.5°C | 85 mm | 0 cm |
| August | 26.3°C | 14.8°C | 20.6°C | 72 mm | 0 cm |
| September | 21.9°C | 10.4°C | 16.2°C | 83 mm | 0 cm |
| October | 14.3°C | 4.3°C | 9.4°C | 71 mm | 1 cm |
| November | 7.4°C | −0.8°C | 3.3°C | 77 mm | 12 cm |
| December | 1.5°C | −5.8°C | −2.2°C | 63 mm | 33 cm |
| Year | 13.0°C | 2.9°C | 8.0°C | 862 mm | 146 cm |
A January here can run warm or cold, its average moving by about 3.1°C; the steadiest month is June
Over 1991–2020, March saw both −25.6°C (2003) and 26.3°C (2012), the widest span of any month.
Where Henry Farm’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the Canadian Climate Normals, 1991–2020, at Toronto Buttonville (Airport) (the closest location with all twelve months of temperatures).
- 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: hours of sunshine, missing from the 1991–2020 normals, and a height correction: the town has no elevation on file.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Henry Farm’s climate
How warm does Henry Farm get in summer?
Of all twelve months, July has the warmest afternoons, about 27.3°C.
How cold does Henry Farm get in winter?
January nights average −10.1°C, the coldest of the year.
How much rain and snow does Henry Farm get?
Rain and snow, with snow counted as water, total 862 mm a year; June leads with 87 mm and February trails with 51 mm.
How long does snow stay on the ground?
Snow covers the ground, 1 cm or more, on about 76 days a year.
Are these figures for Henry Farm itself?
Almost: ECCC’s Toronto Buttonville (Airport) location, which gives these figures, lies a short way outside Henry Farm.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Henry Farm →
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).