Photo: Tudor Costache / TheGiantVermin at English Wikipedia · CC BY 2.5Simcoe has some of the warmest summer afternoons among Canadian towns
Deep winter brings January lows near −8.9°C. Seasons differ by 36°C, from the coldest nights to the warmest afternoons. In January, nights here are milder than in 78% of Canadian towns. Picnics, hikes and garden evenings suit June, August and September, with highs of 22–26°C.
1991–2020 normals from ECCC’s Delhi station, 15 km west.
A year in Simcoe at a glance
Each month’s typical high and low, in °C.
What stands out about Simcoe’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Simcoe feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
Frost on 140 days, 20°C on 133
The frost season runs October to May, and January freezes nearly every night. Deep cold, under −20°C, comes on about 5 nights a year.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
About 965 mm of rain and snow a year
The most falls in July, the least in February. About 118 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
Snowfall: about 141 cm in a normal year
The snow season runs November to April; January brings the most, about 44 cm.
Snowfall by month
Centimetres
Delhi publishes no full year of snowfall, so these figures come from Welland-Pelham, 93 km away.
Heating a home in Simcoe
93% of a year’s heating need falls between October and April. Months averaging under 10°C: November to April.
Heating degree days total each day’s gap between its mean temperature and 18°C. By this count, homes here need less heating than 80% of Canadian towns.
Living with Simcoe’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
The comfortable months for a day outside, highs of 17–27°C and nights of 8°C or more: Jun, Aug and Sep.
Parks & trails →Bitter wind chill, under −20, comes on about 13 days a year.
The air feels heavier than 30 on the humidex for about 61 days a year.
The normals describe a typical year, not its worst days; the hazards page covers Simcoe’s.
Flood & hazards →ECCC’s normals location: Delhi
Delhi is a composite: ECCC joins 2 stations’ readings to make its 1991–2020 normals.
| Distance from the town | 15 km west |
| Station altitude | 232 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Snowfall from | Welland-Pelham, 93 km |
| Coldest reading, 1991–2020 | −34.1°C |
| Hottest reading, 1991–2020 | 36.3°C |
| Average wind | 8.3 km/h on average, most often from the south-west |
| Next-nearest location | Hamilton, 52 km |
How Simcoe 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 Simcoe whose figures come from another normals location. Simcoe has few close neighbours with figures, so the list reaches 33–45 km out.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Simcoe Delhi | 27.5°C | −8.9°C | 965 mm |
| Six Nations (Part) 40 33 km · Hamilton | 26.6°C 0.9°C cooler | −9.1°C about the same | 902 mm |
| Paris 39 km · Kitchener/Waterloo | 26.6°C 0.9°C cooler | −10.3°C 1.4°C colder | 851 mm |
Simcoe 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 | −1.1°C | −8.9°C | −5.0°C | 81 mm | 44 cm |
| February | −0.1°C | −8.8°C | −4.5°C | 58 mm | 24 cm |
| March | 5.1°C | −4.4°C | 0.3°C | 71 mm | 28 cm |
| April | 12.6°C | 1.1°C | 6.8°C | 87 mm | 5 cm |
| May | 19.9°C | 7.2°C | 13.6°C | 88 mm | 0 cm |
| June | 25.2°C | 12.8°C | 19.0°C | 82 mm | 0 cm |
| July | 27.5°C | 14.9°C | 21.2°C | 89 mm | 0 cm |
| August | 26.3°C | 14.0°C | 20.1°C | 80 mm | 0 cm |
| September | 22.4°C | 10.3°C | 16.4°C | 86 mm | 0 cm |
| October | 15.0°C | 4.9°C | 10.0°C | 86 mm | under 1 cm |
| November | 8.0°C | −0.2°C | 3.9°C | 83 mm | 9 cm |
| December | 1.9°C | −5.0°C | −1.7°C | 76 mm | 32 cm |
| Year | 13.6°C | 3.2°C | 8.4°C | 965 mm | 141 cm |
A February 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 −25.9°C (2015) and 27.3°C (2012), the widest span of any month.
Where Simcoe’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s 1991–2020 Canadian Climate Normals for Delhi, 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, not in ECCC’s 1991–2020 normals, and the effect of the town’s height, for which there is no figure.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Simcoe’s climate
How warm does Simcoe get in summer?
Expect highs near 27.5°C in July, the hottest month on average.
How cold does Simcoe get in winter?
On a normal January night the air drops to −8.9°C, the coldest of the year.
How much rain and snow does Simcoe get?
About 965 mm a year, rain and melted snow together. July is the wettest month (89 mm) and February the driest (58 mm).
Are these figures for Simcoe itself?
Yes: ECCC’s 1991–2020 normals for Delhi, which is in Simcoe.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Simcoe →
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).