Photo: Ken Lund from Reno, Nevada, USA · CC BY-SA 2.0Frost comes to Stratford less often than to 75% of Canadian towns
The warmest part of a July day comes in at 26.6°C on average. From frozen January to warm July, readings climb 36°C. In July, afternoons here are warmer than in 70% of Canadian towns. Long walks are most pleasant from June to September, when afternoons reach 22–27°C.
These are not Stratford’s own readings: ECCC keeps no normals there, so the page uses London, 40 km south.
A year in Stratford at a glance
Each month’s typical high and low, in °C.
What stands out about Stratford’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Stratford feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
About 139 frosts and 128 warm days a year
The frost season runs October to May, and January freezes nearly every night. About 11 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 962 mm of rain and snow a year
September brings the most rain and snow; February, the least. Some 128 days a year see 1 mm of rain or snow or more.
Rain and snow by month
Millimetres
Snowfall: about 152 cm in a normal year
Expect snow from October to April, with about 43 cm in January, the snowiest month.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
ECCC’s London normals leave snowfall out; the figures here come from Strathroy-Mullifarry, 72 km away.
Heating a home in Stratford
92% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
The count adds up, day by day, how far the mean temperature falls short of 18°C. A house here needs less heating than 79% of Canadian towns.
Living with Stratford’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
Count on about 165 frost-free days: the last frost averages 3 May, the first 16 October.
Plan time outside for Jun, Jul, Aug and Sep: highs of 17–27°C and nights no colder than 8°C.
Parks & trails →Roughly 18 days a year feel colder than −20 in the wind.
Count on some 55 humid days a year with the humidex past 30.
Bad-weather days, from blizzards to floods, get their own page for Stratford: the hazards page.
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 | 40 km south |
| Station altitude | 278 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Snowfall from | Strathroy-Mullifarry, 72 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 | Kitchener/Waterloo, 49 km |
How Stratford 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
Nearby places read from a different ECCC location (places on Stratford’s own would show the same figures). Stratford has few close neighbours with figures, so the list reaches 15–26 km out.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Stratford London | 26.6°C | −9.1°C | 962 mm |
| Perth East 15 km · Elora | 25.4°C 1.2°C cooler | −10.7°C 1.6°C colder | 851 mm |
| New Hamburg 26 km · Kitchener/Waterloo | 26.6°C about the same | −10.3°C 1.2°C colder | 851 mm |
Stratford 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 |
March: −25.6°C at its coldest, 27.2°C at its warmest
Year to year, February varies most (a standard deviation of 3.0°C around −4.8°C) and June least (1.1°C).
Where Stratford’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s normals for London, 1991–2020, chosen as the nearest location with a full temperature record.
- Other locations: a location missing months of precipitation or snow is filled from the nearest that has them all, never mixed month by month.
- Comparisons: every place of 2,500+ in Canada but the city hubs and the reserves, each on its nearest ECCC location.
- 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 Stratford’s climate
How warm does Stratford get in summer?
Of all twelve months, July has the warmest afternoons, about 26.6°C.
How cold does Stratford get in winter?
Winter bottoms out in January, with lows near −9.1°C.
How much rain and snow does Stratford get?
September is the wettest month at 93 mm and February the driest at 63 mm, for 962 mm over the year.
Are these figures for Stratford itself?
They are borrowed from London, the nearest place to Stratford where ECCC publishes 1991–2020 normals.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Stratford →
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).