Climate averages 1991–2020
Newmarket weather
in June.
A warm, moderately wet month: the 3rd warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a warm month in Newmarket: daytime highs average 23.4°C and nights cool to about 13.7°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 88 mm of rain on roughly 11 days, which makes June a moderately wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 15 h 26 min on an average June day.
The nearest other city in this atlas is Richmond Hill (20 km away). In June its highs average 23.0°C, about as warm as Newmarket, with 77 mm of rain.
Among the 86 cities listed in Canada, Newmarket ranks joint 8th of 86 for the warmest June highs and joint 31st of 86 for the driest June (rainfall, lowest first). The mean June high of those 86 cities is 21.4°C; Newmarket is 1.9°C warmer than that mean.
From June to July, average highs rise by 2.4°C to 25.8°C, and monthly rainfall falls from 88 mm to 84 mm.
The annual picture
June 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, selected | 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 | 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
June in nearby cities
- Richmond Hill in JuneCanada · 20 kmHigh 23.0°C · Low 13.7°C · 77 mm rain
- Vaughan in JuneCanada · 24 kmHigh 22.8°C · Low 13.8°C · 77 mm rain
- Markham in JuneCanada · 26 kmHigh 22.8°C · Low 14.1°C · 77 mm rain
- Thornhill in JuneCanada · 26 kmHigh 22.4°C · Low 14.2°C · 77 mm rain
- Pickering in JuneCanada · 31 kmHigh 21.6°C · Low 14.0°C · 93 mm rain
- Toronto in JuneCanada · 39 kmHigh 21.5°C · Low 14.2°C · 77 mm rain
- Ajax in JuneCanada · 41 kmHigh 22.1°C · Low 14.8°C · 76 mm rain
- Barrie in JuneCanada · 42 kmHigh 22.4°C · Low 13.4°C · 87 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.