1. WeatherSpark.com
  2. Canada
  3. Ontario
  4. Innisfil

Average Weather in Innisfil Canada

In Innisfil, the summers are comfortable and partly cloudy and the winters are freezing, dry, windy, and mostly cloudy. Over the course of the year, the temperature typically varies from 11°F to 77°F and is rarely below -7°F or above 85°F.

Climate Summary

freezingvery coldcoldcoolwarmcoolcoldvery coldJanFebMarAprMayJunJulAugSepOctNovDec67%67%30%30%overcastclearprecipitation: 2.1 inprecipitation: 2.1 in0.8 in0.8 inmuggy: 23%muggy: 23%0%0%drydrytourism score: 6.9tourism score: 6.90.00.0
Click on each chart for more information.

Based on the tourism score, the best time of year to visit Innisfil for warm-weather activities is from late June to early September.

Temperature

The warm season lasts for 3.7 months, from May 27 to September 19, with an average daily high temperature above 66°F. The hottest day of the year is July 20, with an average high of 77°F and low of 59°F.

The cold season lasts for 3.3 months, from December 3 to March 14, with an average daily high temperature below 35°F. The coldest day of the year is January 29, with an average low of 11°F and high of 25°F.

Average High and Low Temperature

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature

Average Hourly Temperature in InnisfilJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMfreezingvery coldcoldcoldcoolcomfortablevery coldfreezingwarmfrigid
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < very cold < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The shaded overlays indicate night and civil twilight.

Lichk’, Armenia (5,678 miles away) and Sapporo, Japan (5,899 miles) are the far-away foreign places with temperatures most similar to Innisfil (view comparison).

Clouds

In Innisfil, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Innisfil begins around May 17 and lasts for 5.4 months, ending around October 29. On August 10, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 67% of the time, and overcast or mostly cloudy 33% of the time.

The cloudier part of the year begins around October 29 and lasts for 6.6 months, ending around May 17. On January 10, the cloudiest day of the year, the sky is overcast or mostly cloudy 70% of the time, and clear, mostly clear, or partly cloudy 30% of the time.

Cloud Cover Categories

Cloud Cover Categories in InnisfilclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Aug 1067%Aug 1067%Jan 1030%Jan 1030%May 1748%May 1748%Oct 2949%Oct 2949%clearmostly clearpartly cloudymostly cloudyovercast
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Innisfil varies throughout the year.

The wetter season lasts 7.4 months, from April 9 to November 23, with a greater than 22% chance of a given day being a wet day. The chance of a wet day peaks at 31% on October 7.

The drier season lasts 4.6 months, from November 23 to April 9. The smallest chance of a wet day is 13% on February 10.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation in Innisfil changes throughout the year.

Rain alone is the most common for 9.6 months, from March 4 to December 21. The highest chance of a day with rain alone is 31% on September 22.

Snow alone is the most common for 2.4 months, from December 21 to March 4. The highest chance of a day with snow alone is 9% on January 18.

Daily Chance of Precipitation

Daily Chance of Precipitation in InnisfilsnowrainJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Oct 731%Oct 731%Feb 1013%Feb 1013%Dec 2117%Dec 2117%Apr 922%Apr 922%snowrainmixed
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Innisfil experiences some seasonal variation in monthly rainfall.

The rainy period of the year lasts for 9.9 months, from March 2 to December 30, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around September 23, with an average total accumulation of 2.1 inches.

The rainless period of the year lasts for 2.1 months, from December 30 to March 2. The least rain falls around January 27, with an average total accumulation of 0.3 inches.

Average Monthly Rainfall

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.

Snowfall

We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. Colder, drier snow tends to be on the higher end of that range and warmer, wetter snow on the lower end.

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Innisfil experiences some seasonal variation in monthly liquid-equivalent snowfall.

The snowy period of the year lasts for 5.4 months, from November 4 to April 17, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around January 14, with an average total liquid-equivalent accumulation of 0.5 inches.

The snowless period of the year lasts for 6.6 months, from April 17 to November 4. The least snow falls around July 23, with an average total liquid-equivalent accumulation of 0.0 inches.

Average Liquid-Equivalent Monthly Snowfall

Average Liquid-Equivalent Monthly Snowfall in InnisfilsnowsnowJanFebMarAprMayJunJulAugSepOctNovDec0.0 in0.5 in1.0 in1.5 in2.0 inJan 140.5 inJan 140.5 inJul 230.0 inJul 230.0 inNov 40.1 inNov 40.1 inApr 170.1 inApr 170.1 in
The average liquid-equivalent snowfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average rainfall.

Sun

The length of the day in Innisfil varies significantly over the course of the year. In 2017, the shortest day is December 21, with 8 hours, 51 minutes of daylight; the longest day is June 21, with 15 hours, 32 minutes of daylight.

Hours of Daylight and Twilight

The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise is at 5:33 AM on June 15, and the latest sunrise is 2 hours, 26 minutes later at 8:00 AM on November 4. The earliest sunset is at 4:39 PM on December 9, and the latest sunset is 4 hours, 27 minutes later at 9:06 PM on June 26.

Daylight saving time (DST) is observed in Innisfil during 2017, starting in the spring on March 12, lasting 7.8 months, and ending in the fall on November 5.

Sunrise & Sunset with Twilight and Daylight Saving Time

Sunrise & Sunset with Twilight and Daylight Saving Time in InnisfilJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 155:33 AMJun 155:33 AM9:06 PMJun 269:06 PMJun 26Dec 94:39 PMDec 94:39 PM8:00 AMNov 48:00 AMNov 4Mar 12DSTMar 12DSTDSTNov 5DSTNov 5daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of the year 2017. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

Humidity

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

Innisfil experiences some seasonal variation in the perceived humidity.

The muggier period of the year lasts for 3.4 months, from June 8 to September 20, during which time the comfort level is muggy, oppressive, or miserable at least 6% of the time. The muggiest day of the year is July 29, with muggy conditions 23% of the time.

The least muggy day of the year is February 11, when muggy conditions are essentially unheard of.

Humidity Comfort Levels

Humidity Comfort Levels in InnisfilmuggyJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Feb 110%Feb 110%Jul 2923%Jul 2923%Jun 86%Jun 86%Sep 206%Sep 206%muggymuggycomfortablecomfortabledrydryhumidhumidoppressiveoppressive
The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

Wind

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Innisfil experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 5.8 months, from October 29 to April 21, with average wind speeds of more than 9.6 miles per hour. The windiest day of the year is January 31, with an average hourly wind speed of 12.2 miles per hour.

The calmer time of year lasts for 6.2 months, from April 21 to October 29. The calmest day of the year is July 31, with an average hourly wind speed of 7.0 miles per hour.

Average Wind Speed

Average Wind Speed in InnisfilwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph2 mph4 mph6 mph8 mph10 mph12 mph14 mph16 mph18 mphJan 3112.2 mphJan 3112.2 mphJul 317.0 mphJul 317.0 mphOct 299.6 mphOct 299.6 mphApr 219.6 mphApr 219.6 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The predominant average hourly wind direction in Innisfil is from the west throughout the year.

Wind Direction

Wind Direction in InnisfilJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%westsouthnortheast
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Water Temperature

Innisfil is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences significant seasonal variation over the course of the year.

The time of year with warmer water lasts for 2.6 months, from July 7 to September 27, with an average temperature above 61°F. The day of the year with the warmest water is August 12, with an average temperature of 68°F.

The time of year with cooler water lasts for 4.9 months, from December 18 to May 14, with an average temperature below 41°F. The day of the year with the coolest water is March 9, with an average temperature of 35°F.

Average Water Temperature

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

Best Time of Year to Visit

To characterize how pleasant the weather is in Innisfil throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Innisfil for general outdoor tourist activities is from late June to early September, with a peak score in the last week of July.

Tourism Score

Tourism Score in Innisfilbest timeJanFebMarAprMayJunJulAugSepOctNovDec02468106.96.90.00.0 precipitationprecipitationcloudscloudstemperaturetemperaturetourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Innisfil for hot-weather activities is from early July to mid August, with a peak score in the third week of July.

Beach/Pool Score

Beach/Pool Score in InnisfilJanFebMarAprMayJunJulAugSepOctNovDec02468104.24.20.00.0 precipitationprecipitationcloudscloudstemperaturetemperaturebeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Growing Season

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season in Innisfil typically lasts for 5.0 months (154 days), from around May 7 to around October 9, rarely starting before April 21 or after May 25, and rarely ending before September 23 or after October 26.

Time Spent in Various Temperature Bands and the Growing Season

Time Spent in Various Temperature Bands and the Growing Season in Innisfilgrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%May 750%May 750%Oct 950%Oct 950%May 2590%May 2590%Sep 2390%Sep 2390%Apr 2110%Apr 2110%Oct 2610%Oct 2610%0%Feb 180%Feb 18Jul 31100%Jul 31100%frigidfreezingvery coldcoolcomfortablewarmcold
The percentage of time spent in various temperature bands: frigid < 15°F < freezing < 32°F < very cold < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Based on growing degree days alone, the first spring blooms in Innisfil should appear around May 9, only rarely appearing before April 27 or after May 22.

Growing Degree Days

The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 3.5 months, from May 4 to August 20, with an average daily incident shortwave energy per square meter above 5.8 kWh. The brightest day of the year is June 29, with an average of 6.9 kWh.

The darker period of the year lasts for 3.5 months, from October 30 to February 14, with an average daily incident shortwave energy per square meter below 2.3 kWh. The darkest day of the year is December 24, with an average of 1.2 kWh.

Average Daily Incident Shortwave Solar Energy

The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Innisfil are 44.300 deg latitude, -79.650 deg longitude, and 902 ft elevation.

The topography within 2 miles of Innisfil contains only modest variations in elevation, with a maximum elevation change of 217 feet and an average elevation above sea level of 884 feet. Within 10 miles also contains only modest variations in elevation (453 feet). Within 50 miles contains only modest variations in elevation (1,545 feet).

The area within 2 miles of Innisfil is covered by cropland (46%) and trees (44%), within 10 miles by cropland (34%) and trees (32%), and within 50 miles by trees (39%) and cropland (27%).

Data Sources

This report illustrates the typical weather in Innisfil, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Innisfil.

For each station, the records are corrected for the elevation difference between that station and Innisfil according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Innisfil is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Innisfil and a given station.

The stations contributing to this reconstruction are: Crn On Egbert 1 W (78%, 13 kilometers, southwest); Lagoon City (13%, 43 kilometers, northeast); and Toronto/Buttonville Municipal Airport (9%, 54 kilometers, southeast).

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.