Summer arrives in force in Adelaide-Metcalfe, hotter than in 91% of Canadian towns
Midwinter brings lows of about −8.5°C. Its January nights stay gentler than in 81% of Canadian towns. A year here swings 36°C from midwinter lows to midsummer highs. Expect about 137 frosty starts a year, days when the air falls to freezing.
Measured at Strathroy-Mullifarry, 0.9 km south: ECCC’s normals for 1991–2020.
A year in Adelaide-Metcalfe at a glance
Each month’s typical high and low, in °C.
What stands out about Adelaide-Metcalfe’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Adelaide-Metcalfe feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
137 frost days and 131 days above 20°C a year
The frost season runs October to May, and January freezes nearly every night. Some 17 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
About 966 mm of rain and snow a year
November brings the most rain and snow; February, the least. On about 132 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
152 cm of snow in a typical year
From October to April snow is likely; January is the peak, at about 43 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Adelaide-Metcalfe
93% of a year’s heating need falls between October and April. Months averaging under 10°C: November to April.
ECCC sums, over the year, how many degrees each day’s average falls short of 18°C. Over a year, a home here needs less heating than 86% of Canadian towns.
Living with Adelaide-Metcalfe’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
Tender plants are usually safe from around 8 May until frost returns near 11 October: about 155 days.
Mild days and mild nights together (17–27°C by day, 8°C or more at night) belong to May, Jun, Aug and Sep.
Parks & trails →The normals describe a typical year, not its worst days; the hazards page covers Adelaide-Metcalfe’s.
Flood & hazards →ECCC’s normals location: Strathroy-Mullifarry
Strathroy-Mullifarry is a composite: ECCC joins 2 stations’ readings to make its 1991–2020 normals.
| Distance from the town | 0.9 km south |
| Station altitude | 229 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | Yes |
| Coldest reading, 1991–2020 | −32.5°C |
| Hottest reading, 1991–2020 | 37.5°C |
| Next-nearest location | London, 42 km |
How Adelaide-Metcalfe 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
Nearby places read from a different ECCC location (places on Adelaide-Metcalfe’s own would show the same figures). Distances here run 23–37 km: that is how far the nearest places with figures are from Adelaide-Metcalfe.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Adelaide-Metcalfe Strathroy-Mullifarry | 27.3°C | −8.5°C | 966 mm |
| Middlesex Centre 23 km · London | 26.6°C 0.7°C cooler | −9.1°C 0.6°C colder | 962 mm |
| Dutton 35 km · New Glasgow | 26.2°C 1.1°C cooler | −7.4°C 1.1°C milder | 927 mm |
Adelaide-Metcalfe weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −1.5°C | −8.5°C | −5.0°C | 81 mm | 43 cm |
| February | −0.4°C | −8.3°C | −4.4°C | 62 mm | 32 cm |
| March | 5.1°C | −3.8°C | 0.7°C | 66 mm | 20 cm |
| April | 12.7°C | 2.1°C | 7.4°C | 88 mm | 5 cm |
| May | 19.9°C | 8.2°C | 14.1°C | 84 mm | under 1 cm |
| June | 25.0°C | 13.5°C | 19.3°C | 86 mm | 0 cm |
| July | 27.3°C | 15.7°C | 21.5°C | 78 mm | 0 cm |
| August | 26.2°C | 14.8°C | 20.5°C | 81 mm | 0 cm |
| September | 22.8°C | 11.1°C | 17.0°C | 88 mm | 0 cm |
| October | 15.3°C | 5.8°C | 10.6°C | 84 mm | 2 cm |
| November | 7.8°C | 0.4°C | 4.1°C | 90 mm | 13 cm |
| December | 1.5°C | −4.7°C | −1.6°C | 79 mm | 37 cm |
| Year | 13.5°C | 3.9°C | 8.7°C | 966 mm | 152 cm |
In March, anything from −28.0°C to 27.5°C
Bars run from each month’s record low to its record high over 1991–2020; February is the month whose average wanders most from year to year (±3.2°C around −4.4°C), June the one that wanders least (±1.2°C).
Where Adelaide-Metcalfe’s numbers come from
Averages over 30 years, not a forecast.
- Normals: 1991–2020 normals for Strathroy-Mullifarry from ECCC’s climate data site, the nearest location with every month of temperature.
- Comparisons: all Canadian places of 2,500 or more except city totals and reserves, each read the same way.
- Not on this page: sunshine, absent from every 1991–2020 location, and an altitude correction, for want of the town’s own elevation.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Adelaide-Metcalfe’s climate
How warm does Adelaide-Metcalfe get in summer?
Midsummer means July, with afternoons near 27.3°C on a typical day.
How cold does Adelaide-Metcalfe get in winter?
A typical January night falls to −8.5°C, the year’s low point.
How much rain and snow does Adelaide-Metcalfe get?
Precipitation totals 966 mm a year, with November the wettest month (90 mm) and February the driest (62 mm).
How long does snow stay on the ground?
The ground is white, with 1 cm or more, on some 80 days a year.
Are these figures for Adelaide-Metcalfe itself?
Yes, measured at Strathroy-Mullifarry, which sits inside Adelaide-Metcalfe’s boundary.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Adelaide-Metcalfe →
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).