Climate averages 1991–2020
London, Canada weather
in October.
A cool, moderately wet month: the 6th warmest and the joint 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a cool month in London, Canada: daytime highs average 14.3°C and nights cool to about 7.0°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 86 mm of rain on roughly 12 days, which makes October a moderately wet month (the joint 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 05 min on an average October day.
The nearest other city in this atlas is Kitchener (76 km away). In October its highs average 13.5°C, 0.8°C cooler than London, Canada, with 80 mm of rain.
Among the 86 cities listed in Canada, London, Canada ranks joint 8th of 86 for the warmest October highs and 40th of 86 for the driest October (rainfall, lowest first). The mean October high of those 86 cities is 12.7°C; London, Canada is 1.6°C warmer than that mean.
From October to November, average highs fall by 7.0°C to 7.2°C, and monthly rainfall falls from 86 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
London, Canada climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -1.5°C-9.0°C | -9.0°C | 71 | 11.7 | 9.49 h |
| February | -0.5°C-9.6°C | -9.6°C | 58 | 9.6 | 10.510 h |
| March | 4.7°C-4.5°C | -4.5°C | 70 | 10.9 | 11.912 h |
| April | 11.9°C2.1°C | 2.1°C | 93 | 12.4 | 13.413 h |
| May | 18.9°C9.0°C | 9.0°C | 98 | 12.5 | 14.615 h |
| June | 24.0°C14.7°C | 14.7°C | 102 | 12.0 | 15.315 h |
| July | 26.1°C17.2°C | 17.2°C | 100 | 11.9 | 15.015 h |
| August | 25.1°C16.5°C | 16.5°C | 84 | 10.6 | 13.914 h |
| September | 21.4°C13.0°C | 13.0°C | 86 | 9.7 | 12.513 h |
| October, selected | 14.3°C7.0°C | 7.0°C | 86 | 11.8 | 11.111 h |
| November | 7.2°C1.0°C | 1.0°C | 77 | 11.1 | 9.810 h |
| December | 1.5°C-4.5°C | -4.5°C | 68 | 11.2 | 9.19 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
- Kitchener in OctoberCanada · 76 kmHigh 13.5°C · Low 5.5°C · 80 mm rain
- Waterloo in OctoberCanada · 79 kmHigh 13.4°C · Low 5.7°C · 80 mm rain
- Brantford in OctoberCanada · 80 kmHigh 14.4°C · Low 6.9°C · 77 mm rain
- Cambridge, Canada in OctoberCanada · 86 kmHigh 13.9°C · Low 6.1°C · 77 mm rain
- Sarnia in OctoberCanada · 95 kmHigh 14.7°C · Low 8.5°C · 76 mm rain
- Guelph in OctoberCanada · 101 kmHigh 13.4°C · Low 5.7°C · 78 mm rain
- Hamilton in OctoberCanada · 116 kmHigh 14.6°C · Low 8.9°C · 85 mm rain
- Burlington in OctoberCanada · 122 kmHigh 14.3°C · Low 8.0°C · 83 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 London) is explained once on the London, Canada year overview and on the Sources, method and limits page.