Highland gets fewer frosts than 75% of Canadian towns
In July the day’s top temperature is typically 26.6°C. Summer afternoons here are warmer than in 70% of Canadian towns. Of all months, September brings the most precipitation and February the least. An umbrella or a shovel earns its place on about 128 days a year with 1 mm or more.
Read at London, 12 km north-east: ECCC’s normals for 1991–2020.
A year in Highland at a glance
Each month’s typical high and low, in °C.
What stands out about Highland’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Highland feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
About 139 frosts and 128 warm days a year
The frost season runs October to May, and January freezes nearly every night. Some 11 days a year climb past 30°C.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
Rain and melted snow: about 962 mm a year
Rain and snow by month
Millimetres
About 152 cm of snow a year
Snow falls from October to April, most of all in January (about 43 cm).
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
London publishes no full year of snowfall, so these figures come from Strathroy-Mullifarry, 32 km away.
Heating a home in Highland
92% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
One degree below 18°C for one day makes one heating degree day; the year’s days are added together. By this count, homes here need less heating than 79% of Canadian towns.
Living with Highland’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
Frost usually lets go around 3 May and returns near 16 October, about 165 days apart.
Plan time outside for Jun, Jul, Aug and Sep: highs of 17–27°C and nights no colder than 8°C.
Parks & trails →Frostbite weather, a wind chill under −20, turns up on about 18 days a year.
Muggy heat with a humidex over 30 arrives on about 55 days a year.
The normals describe a typical year, not its worst days; the hazards page covers Highland’s.
Flood & hazards →ECCC’s normals location: London
Behind the 1991–2020 normals for London are 3 stations, which ECCC combines into one record.
| Distance from the town | 12 km north-east |
| Station altitude | 278 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Snowfall from | Strathroy-Mullifarry, 32 km |
| Coldest reading, 1991–2020 | −29.1°C |
| Hottest reading, 1991–2020 | 37.0°C |
| Average wind | 14.0 km/h on average, most often from the west |
| Next-nearest location | Strathroy-Mullifarry, 32 km |
How Highland 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 Highland’s would only repeat its figures. Distances here run 19–38 km: that is how far the nearest places with figures are from Highland.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Highland London | 26.6°C | −9.1°C | 962 mm |
| Oneida 41 19 km · Strathroy-Mullifarry | 27.3°C 0.7°C warmer | −8.5°C 0.6°C milder | 966 mm |
| Dutton 38 km · New Glasgow | 26.2°C about the same | −7.4°C 1.7°C milder | 927 mm |
| South-West Oxford 38 km · Delhi | 27.5°C 0.9°C warmer | −8.9°C about the same | 965 mm |
Highland 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 | −1.6°C | −9.1°C | −5.4°C | 79 mm | 43 cm |
| February | −0.6°C | −9.0°C | −4.8°C | 63 mm | 32 cm |
| March | 4.6°C | −4.5°C | 0.1°C | 67 mm | 20 cm |
| April | 12.2°C | 1.4°C | 6.8°C | 89 mm | 5 cm |
| May | 19.3°C | 7.7°C | 13.5°C | 89 mm | under 1 cm |
| June | 24.4°C | 13.2°C | 18.8°C | 86 mm | 0 cm |
| July | 26.6°C | 15.3°C | 21.0°C | 81 mm | 0 cm |
| August | 25.7°C | 14.4°C | 20.1°C | 67 mm | 0 cm |
| September | 22.1°C | 10.5°C | 16.3°C | 93 mm | 0 cm |
| October | 14.7°C | 5.0°C | 9.9°C | 83 mm | 2 cm |
| November | 7.5°C | −0.3°C | 3.6°C | 88 mm | 13 cm |
| December | 1.4°C | −5.2°C | −2.0°C | 79 mm | 37 cm |
| Year | 13.0°C | 3.3°C | 8.2°C | 962 mm | 152 cm |
A March here can run from −25.6°C to 27.2°C
Two years in three, February’s average falls within 3.0°C of its normal of −4.8°C; June keeps to within 1.1°C.
Where Highland’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s 1991–2020 Canadian Climate Normals for London, the nearest location with a full year of temperatures.
- 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, 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 Highland’s climate
How warm does Highland get in summer?
Midsummer means July, with afternoons near 26.6°C on a typical day.
How cold does Highland get in winter?
A typical January night falls to −9.1°C, the year’s low point.
How much rain and snow does Highland get?
Over twelve months, rain and melted snow come to 962 mm; the range runs from 63 mm in February to 93 mm in September.
Are these figures for Highland itself?
Almost: ECCC’s London location, which gives these figures, lies a short way outside Highland.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Highland →
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).