July in Spring Valley runs hotter than in 95% of Canadian towns
On a normal January night the air cools to about −8.9°C. Frosty nights are scarcer than in 82% of Canadian towns. A year here swings 36°C from midwinter lows to midsummer highs. Wet days, with 1 mm of rain or snow or more, come about 106 times a year.
Spring Valley has no ECCC normals station of its own: every figure here comes from Toronto Pearson (Airport), 15 km east.
A year in Spring Valley at a glance
Each month’s typical high and low, in °C.
What stands out about Spring Valley’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Spring Valley feels like
Each season’s and each month’s usual high and low, 1991–2020.
131 frost days and 125 days above 20°C 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
About 807 mm of rain and snow a year
June brings the most rain and snow; February, the least.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 115 cm of snow a 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 Spring Valley
93% of a year’s heating need falls between October and April. Months averaging under 10°C: November to April.
The total grows by a degree for every degree a day’s mean sits under 18°C. A house here needs less heating than 83% of Canadian towns.
Living with Spring Valley’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
The frost-free stretch runs from about 27 April to about 20 October, some 174 days in a normal year.
The outdoor season by the averages is May, Jun, Aug and Sep, with highs of 17–27°C and lows of 8°C or more.
Parks & trails →Count on some 21 days a year when the wind makes it feel below −20.
The air feels heavier than 30 on the humidex for about 56 days a year.
What averages leave out, the floods and ice storms, is on Spring Valley’s hazards page.
Flood & hazards →ECCC’s normals location: Toronto Pearson (Airport)
Behind the 1991–2020 normals for Toronto Pearson (Airport) are 2 stations, which ECCC combines into one record.
| Distance from the town | 15 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), 34 km |
How Spring Valley compares
Compared with 2,611 towns and neighbourhoods of 2,500 or more across Canada; the dots mark the other normals locations in Ontario.
Nearby towns’ climate
Places around Spring Valley whose figures come from another normals location. Spring Valley has few close neighbours with figures, so the list reaches 18–30 km out.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Spring Valley Toronto Pearson (Airport) | 27.4°C | −8.9°C | 807 mm |
| Milton 18 km · Burlington Piers | 25.5°C 1.9°C cooler | −6.3°C 2.6°C milder | 807 mm |
| Erin 24 km · Elora | 25.4°C 2.0°C cooler | −10.7°C 1.8°C colder | 807 mm |
| Vaughan 30 km · Toronto Buttonville (Airport) | 27.3°C about the same | −10.1°C 1.2°C colder | 862 mm |
Spring Valley 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 |
A March here can run from −24.7°C to 26.0°C
Two years in three, January’s average falls within 3.0°C of its normal of −5.0°C; June keeps to within 1.3°C.
Where Spring Valley’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the closest ECCC location with twelve months of temperature normals, Toronto Pearson (Airport), 1991–2020.
- Comparisons: Canadian towns and neighbourhoods of at least 2,500, each placed by its nearest location (city totals and reserves excluded).
- 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 Spring Valley’s climate
How warm does Spring Valley get in summer?
Of all twelve months, July has the warmest afternoons, about 27.4°C.
How cold does Spring Valley get in winter?
Of all twelve months, January has the coldest nights, about −8.9°C.
How much rain and snow does Spring Valley get?
Precipitation totals 807 mm a year, with June the wettest month (81 mm) and February the driest (50 mm).
How long does snow stay on the ground?
On about 69 days a year the ground keeps at least 1 cm of snow.
Are these figures for Spring Valley itself?
No, the station behind them is Toronto Pearson (Airport), beyond Spring Valley’s boundary.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Spring Valley →
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).