Climate averages 1991–2020
Mississauga weather
in October.
A cool, moderately wet month: the 6th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a cool month in Mississauga: daytime highs average 14.2°C and nights cool to about 7.3°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 83 mm of rain on roughly 11 days, which makes October a moderately wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 04 min on an average October day.
The nearest other city in this atlas is Etobicoke (10 km away). In October its highs average 14.2°C, about as warm as Mississauga, with 75 mm of rain.
Among the 86 cities listed in Canada, Mississauga ranks joint 10th of 86 for the warmest October highs and joint 32nd of 86 for the driest October (rainfall, lowest first). The mean October high of those 86 cities is 12.7°C; Mississauga is 1.5°C warmer than that mean.
From October to November, average highs fall by 6.9°C to 7.3°C, and monthly rainfall falls from 83 mm to 77 mm.
The annual picture
October in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Mississauga climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -1.2°C-8.4°C | -8.4°C | 70 | 10.9 | 9.39 h |
| February | -0.6°C-9.0°C | -9.0°C | 56 | 8.7 | 10.510 h |
| March | 4.3°C-4.5°C | -4.5°C | 65 | 9.6 | 11.912 h |
| April | 10.9°C1.7°C | 1.7°C | 89 | 11.3 | 13.413 h |
| May | 17.7°C8.1°C | 8.1°C | 81 | 10.9 | 14.715 h |
| June | 23.1°C14.2°C | 14.2°C | 82 | 11.3 | 15.415 h |
| July | 26.0°C17.4°C | 17.4°C | 74 | 10.1 | 15.115 h |
| August | 25.1°C17.0°C | 17.0°C | 66 | 9.4 | 14.014 h |
| September | 21.3°C13.5°C | 13.5°C | 75 | 9.1 | 12.613 h |
| October, selected | 14.2°C7.3°C | 7.3°C | 83 | 11.1 | 11.111 h |
| November | 7.3°C1.2°C | 1.2°C | 77 | 10.2 | 9.710 h |
| December | 1.8°C-4.0°C | -4.0°C | 70 | 10.6 | 9.09 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
October in nearby cities
- Etobicoke in OctoberCanada · 10 kmHigh 14.2°C · Low 7.7°C · 75 mm rain
- Oakville in OctoberCanada · 14 kmHigh 14.5°C · Low 8.5°C · 83 mm rain
- Brampton in OctoberCanada · 15 kmHigh 13.9°C · Low 6.3°C · 74 mm rain
- Milton in OctoberCanada · 19 kmHigh 14.2°C · Low 7.3°C · 76 mm rain
- Toronto in OctoberCanada · 25 kmHigh 13.9°C · Low 8.0°C · 75 mm rain
- Burlington in OctoberCanada · 26 kmHigh 14.3°C · Low 8.0°C · 83 mm rain
- Vaughan in OctoberCanada · 31 kmHigh 13.8°C · Low 6.8°C · 75 mm rain
- Thornhill in OctoberCanada · 32 kmHigh 14.0°C · Low 7.5°C · 75 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Mississauga) is explained once on the Mississauga year overview and on the Sources, method and limits page.
Oakville and Burlington lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.