Photo: Kenn Chaplin from Toronto, Canada · CC BY-SA 2.0July in Tay Valley runs hotter than in 88% of Canadian towns
Nights in January average −14.2°C. Rain and snow together come to more here than on 62% of Canadian towns. A year here swings 41°C from midwinter lows to midsummer highs. Expect about 163 frosty starts a year, days when the air falls to freezing.
No ECCC station in Tay Valley has 1991–2020 normals; the page reads Drummond Centre, 21 km north-east, instead.
A year in Tay Valley at a glance
Each month’s typical high and low, in °C.
What stands out about Tay Valley’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Tay Valley feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
Frost on 163 days, 20°C on 121
From September to May frost is routine, and in January it comes on almost every night. Deep cold, under −20°C, comes on about 19 nights a year.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
Rain and melted snow: about 939 mm a year
The most falls in September, the least in February. On about 123 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
187 cm of snow in a typical year
From October to April snow is likely; January is the peak, at about 46 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Tay Valley
92% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Measured against 18°C: each day’s shortfall in mean temperature, added over twelve months.
Living with Tay Valley’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
Mild days and mild nights together (17–27°C by day, 8°C or more at night) belong to Jun, Aug and Sep.
Parks & trails →The normals describe a typical year, not its worst days; the hazards page covers Tay Valley’s.
Flood & hazards →ECCC’s normals location: Drummond Centre
The page’s figures are ECCC’s 1991–2020 normals for Drummond Centre, one of its 450 normals locations.
| Distance from the town | 21 km north-east |
| Station altitude | 145 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −36.0°C |
| Hottest reading, 1991–2020 | 37.0°C |
| Next-nearest location | Brockville, 55 km |
How Tay Valley 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
Nearby places read from a different ECCC location (places on Tay Valley’s own would show the same figures). The nearest places to Tay Valley with figures are 25–50 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Tay Valley Drummond Centre | 27.1°C | −14.2°C | 939 mm |
| Rideau Lakes 25 km · Brockville | 26.1°C 1.0°C cooler | −11.3°C 2.9°C milder | 1,017 mm |
| Central Frontenac 31 km · Centreville | 27.2°C about the same | −12.4°C 1.8°C milder | 984 mm |
| Merrickville 40 km · Kemptville | 26.8°C about the same | −14.0°C about the same | 925 mm |
Tay Valley 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 | −4.6°C | −14.2°C | −9.5°C | 74 mm | 46 cm |
| February | −2.3°C | −13.5°C | −8.0°C | 57 mm | 40 cm |
| March | 3.7°C | −7.3°C | −1.9°C | 62 mm | 27 cm |
| April | 11.6°C | 0.1°C | 5.9°C | 78 mm | 11 cm |
| May | 19.8°C | 6.8°C | 13.2°C | 74 mm | under 1 cm |
| June | 24.4°C | 11.9°C | 18.1°C | 89 mm | 0 cm |
| July | 27.1°C | 14.3°C | 20.7°C | 89 mm | 0 cm |
| August | 25.8°C | 13.2°C | 19.5°C | 88 mm | 0 cm |
| September | 21.2°C | 9.1°C | 15.2°C | 91 mm | 0 cm |
| October | 13.3°C | 3.5°C | 8.4°C | 87 mm | 2 cm |
| November | 5.9°C | −2.4°C | 1.8°C | 75 mm | 17 cm |
| December | −1.2°C | −9.0°C | −5.1°C | 74 mm | 43 cm |
| Year | 12.1°C | 1.0°C | 6.5°C | 939 mm | 187 cm |
March: −33.0°C at its coldest, 27.0°C at its warmest
Year to year, January varies most (a standard deviation of 3.0°C around −9.5°C) and June least (1.1°C).
Where Tay Valley’s numbers come from
Averages over 30 years, not a forecast.
- Normals: 1991–2020 normals for Drummond Centre from ECCC’s climate data site, the nearest location with every month of temperature.
- 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 (no 1991–2020 normals exist for it) and any altitude adjustment, since there is no elevation for the town itself.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Tay Valley’s climate
How warm does Tay Valley get in summer?
Summer peaks in July: a typical afternoon reaches 27.1°C.
How cold does Tay Valley get in winter?
The coldest nights come in January, averaging −14.2°C.
How much rain and snow does Tay Valley get?
Measured as water, a year brings 939 mm: 91 mm in September, the wettest month, and 57 mm in February, the driest.
How long does snow stay on the ground?
In a normal winter there are about 116 days with at least 1 cm of snow lying.
Are these figures for Tay Valley itself?
Not as such: Drummond Centre is the nearest normals location, and Tay Valley has none.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Tay 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).