Innisfil climate — normals and trends
Innisfil (Canada) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.0 °C and it receives 810 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (20.4 °C on average) and the coldest is January (-7.1 °C). Rainfall peaks in May.
Innisfil averages 146 frost days, 11 hot days (≥ 30 °C) and 129 rainy days per year.
Innisfil has warmed by +1.5 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.
The number of frost days there went from about 154 to 138 per year over the period.
The hottest day of the period reached 36.9 °C (on 1 July 1963) and the coldest -34.2 °C (on 14 February 2016).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
InnisfilOntario
- coords
- 44.30°, -79.65°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.0°C
Average daily high
11.7°C
Average daily low
2.3°C
Annual rainfall
810mm
Sunshine / day
8.6h
Mean relative humidity
73%
Average peak wind
17.9km/h
Seasonal range
27.5°C
Frost days (< 0 °C)
146 d/yr
Hot days (≥ 30 °C)
11 d/yr
Rainy days (≥ 1 mm)
129 d/yr
Annual snowfall
119.9 cm
Average feels-like high
9.3 °C
Average feels-like low
-1.0 °C
Average peak gust
38.4 km/h
Tropical nights (≥ 20 °C)
5 d/yr
Solar radiation
13.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.27 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
36.9 °C
1 July 1963
Coldest day
-34.2 °C
14 February 2016
Wettest day
97 mm
15 October 1954
Windiest day
45.9 km/h
19 January 1949
Strongest gust
109.1 km/h
6 April 1985
Hottest feels-like
40.2 °C
1 August 2006
Coldest feels-like
-39.3 °C
14 February 2016
Snowiest day
29.8 cm
25 February 1965
Sunniest day
15.0 h
14 June 1940
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | -4.1 °C | -1.0 °C | 42 mm | -11 mm |
| Feb | -3.3 °C | -1.3 °C | 77 mm | +30 mm |
| Mar | 6.6 °C | +3.3 °C | 70 mm | +10 mm |
| Apr | 11.3 °C | +0.2 °C | 61 mm | -9 mm |
| May | 17.1 °C | -0.9 °C | 88 mm | +9 mm |
| Jun | 24.9 °C | +1.7 °C | 86 mm | +8 mm |
| Jul | 27.8 °C | +2.1 °C | 52 mm | -22 mm |
| Aug | 25.1 °C | +0.5 °C | 51 mm | -26 mm |
| Sep | 22.3 °C | +1.9 °C | 62 mm | -9 mm |
| Oct | 15.3 °C | +1.6 °C | 65 mm | -6 mm |
| Nov | 5.3 °C | -0.9 °C | 63 mm | -6 mm |
| Dec | -1.2 °C | -0.9 °C | 82 mm | +20 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Innisfil?
Innisfil has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 7.0 °C and it receives 810 mm of precipitation per year.
What is the hottest day ever recorded in Innisfil?
The hottest day measured in Innisfil between 1940 and 2025 was 1 July 1963, reaching 36.9 °C.
What is the coldest day in Innisfil?
The coldest day measured in Innisfil between 1940 and 2025 was 14 February 2016, at -34.2 °C.
Does it snow in Innisfil?
Yes. Innisfil gets on average 119.9 cm of snow per year and has around 146 frost days.
Has the climate of Innisfil warmed?
Yes: Innisfil warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Innisfil?
The wettest day measured in Innisfil between 1940 and 2025 was 15 October 1954, with 97 mm of rain in 24 hours.
What was the windiest day in Innisfil?
The windiest day measured in Innisfil between 1940 and 2025 was 19 January 1949, with winds reaching 45.9 km/h.
What is the warmest month in Innisfil?
The warmest month in Innisfil is July (20.4 °C on average); the coldest is January (-7.1 °C).
How much does it rain in Innisfil?
Innisfil receives on average 810 mm of precipitation per year, spread over about 129 rainy days.
Is it sunny in Innisfil?
Innisfil gets on average 8.6 hours of sunshine per day, roughly 3,139 hours per year over 1940-2025.
What is the biggest single-day snowfall in Innisfil?
The heaviest 24-hour snowfall measured in Innisfil between 1940 and 2025 was 25 February 1965, with 29.8 cm.
Are there tropical nights in Innisfil?
Yes: Innisfil has on average 5 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Innisfil?
In Innisfil, between 1940 and 2025, the highest apparent temperature reached 40.2 °C on 1 August 2006, and the lowest was -39.3 °C on 14 February 2016.
Compare Innisfil with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Innisfil