Mississauga, Ontario Climate Data

Mississauga, Ontario climate data is summarized below. Average annual temperatures range from 40.6 °F (low) to 55.6 °F (high). Annual precipitation averages 35.4 Inches. Mississauga is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.

Avg Annual High55.6 °F
Avg Annual Low40.6 °F
Annual Precipitation35.4 in.
Hardiness ZoneZone 6a
Growing Season: Last frost around Apr. 21 - Apr. 30 — First frost around Oct. 21 - Oct. 31 — Approximately 100-125 Days frost days per year.

Monthly Average Climate Data for Mississauga, Ontario

Average monthly temperatures and precipitation Switch to Celsius / Metric
MonthAvg. LowAvg. HighAvg. Precip
January-22.2 °F-18.4 °F533.4 in.
February-22.9 °F-18.6 °F762 in.
March-19.7 °F-14.9 °F1828.8 in.
April-16.2 °F-11.1 °F2413 in.
May-12.7 °F-7.2 °F2463.8 in.
June-9.7 °F-4.4 °F2311.4 in.
July-8.1 °F-2.8 °F2463.8 in.
August-8.4 °F-3.2 °F2768.6 in.
September-10.8 °F-5.6 °F2032 in.
October-14 °F-9.6 °F2006.6 in.
November-17.2 °F-13.3 °F1803.4 in.
December-20 °F-16.8 °F1447.8 in.
Annual40.6 °F55.6 °F35.39 in.

Additional Climate Conditions

Feels Like High-5.03|-5.59|2.35|10.5|18.8|24.39|27.66|26.94|22.13|13.91|6.12|-1.59 °F
Feels Like Low-14.16|-15.28|-8.19|-0.37|7.6|14|17.32|16.8|11.73|4.8|-2.49|-9.32 °F
Avg Humidity75.22|73.14|67.5|60.81|61.46|65.13|64.49|68.01|71.17|74.89|75.56|78.22%
Avg Wind Speed16.32|16.37|15.07|14.84|12.41|11.88|11.42|11.04|11.54|13.22|14.21|16.16 mph
Cloud Cover77.33|73.16|67|61|55.16|50.08|41.16|39.33|46.66|62.66|67.33|81.83%
Days of Precipitation9|8|11|12|13|11|11|10|9|12|9|10 days/yr
Annual Snowfall21|30|13|4|0|0|0|0|0|0|2|14 in.

Climate Zone Data for Mississauga, Ontario

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost100-125 Days
Plant Hardiness ZoneZone 6a : -10°F to -5°F
Current Drought ConditionsNormal
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