Climate averages 1991–2020
Newmarket weather
in October.
A cool, moderately wet month: the 6th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a cool month in Newmarket: daytime highs average 13.5°C and nights cool to about 6.0°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 75 mm of rain on roughly 11 days, which makes October a moderately wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 03 min on an average October day.
The nearest other city in this atlas is Richmond Hill (20 km away). In October its highs average 13.7°C, about as warm as Newmarket, with 75 mm of rain.
Among the 86 cities listed in Canada, Newmarket ranks joint 28th of 86 for the warmest October highs and joint 15th of 86 for the driest October (rainfall, lowest first). The mean October high of those 86 cities is 12.7°C; Newmarket is 0.8°C warmer than that mean.
From October to November, average highs fall by 7.1°C to 6.3°C, and monthly rainfall falls from 75 mm to 68 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
Newmarket climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -2.6°C-11.3°C | -11.3°C | 57 | 10.1 | 9.39 h |
| February | -1.6°C-11.3°C | -11.3°C | 47 | 8.0 | 10.410 h |
| March | 3.7°C-6.0°C | -6.0°C | 56 | 10.1 | 11.912 h |
| April | 11.0°C1.0°C | 1.0°C | 77 | 11.4 | 13.413 h |
| May | 18.4°C7.9°C | 7.9°C | 80 | 11.2 | 14.715 h |
| June | 23.4°C13.7°C | 13.7°C | 88 | 11.2 | 15.415 h |
| July | 25.8°C16.5°C | 16.5°C | 84 | 10.7 | 15.115 h |
| August | 24.7°C15.9°C | 15.9°C | 78 | 9.6 | 14.014 h |
| September | 20.8°C12.2°C | 12.2°C | 73 | 9.1 | 12.613 h |
| October, selected | 13.5°C6.0°C | 6.0°C | 75 | 11.0 | 11.011 h |
| November | 6.3°C-0.4°C | -0.4°C | 68 | 10.2 | 9.710 h |
| December | 0.5°C-6.4°C | -6.4°C | 57 | 9.9 | 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
- Richmond Hill in OctoberCanada · 20 kmHigh 13.7°C · Low 6.5°C · 75 mm rain
- Vaughan in OctoberCanada · 24 kmHigh 13.8°C · Low 6.8°C · 75 mm rain
- Markham in OctoberCanada · 26 kmHigh 14.0°C · Low 7.1°C · 91 mm rain
- Thornhill in OctoberCanada · 26 kmHigh 14.0°C · Low 7.5°C · 75 mm rain
- Pickering in OctoberCanada · 31 kmHigh 13.4°C · Low 7.2°C · 81 mm rain
- Toronto in OctoberCanada · 39 kmHigh 13.9°C · Low 8.0°C · 75 mm rain
- Ajax in OctoberCanada · 41 kmHigh 14.0°C · Low 8.1°C · 95 mm rain
- Barrie in OctoberCanada · 42 kmHigh 12.9°C · Low 6.0°C · 82 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 Newmarket) is explained once on the Newmarket year overview and on the Sources, method and limits page.