Climate averages 1991–2020
Ajax weather
in June.
A warm, moderately wet month: the 3rd warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a warm month in Ajax: daytime highs average 22.1°C and nights cool to about 14.8°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 76 mm of rain on roughly 10 days, which makes June a moderately wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 24 min on an average June day.
The nearest other city in this atlas is Whitby (9 km away). In June its highs average 22.0°C, about as warm as Ajax, with 93 mm of rain.
Among the 86 cities listed in Canada, Ajax ranks joint 44th of 86 for the warmest June highs and 12th of 86 for the driest June (rainfall, lowest first). The mean June high of those 86 cities is 21.4°C; Ajax is 0.6°C warmer than that mean.
From June to July, average highs rise by 3.3°C to 25.4°C, and monthly rainfall falls from 76 mm to 67 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
Ajax 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-8.8°C | -8.8°C | 86 | 12.5 | 9.39 h |
| February | -1.0°C-9.1°C | -9.1°C | 61 | 9.1 | 10.410 h |
| March | 3.5°C-4.3°C | -4.3°C | 70 | 10.1 | 11.912 h |
| April | 10.0°C2.2°C | 2.2°C | 96 | 11.0 | 13.413 h |
| May | 16.5°C8.8°C | 8.8°C | 78 | 10.1 | 14.715 h |
| June, selected | 22.1°C14.8°C | 14.8°C | 76 | 9.7 | 15.415 h |
| July | 25.4°C18.1°C | 18.1°C | 67 | 8.9 | 15.115 h |
| August | 24.8°C17.9°C | 17.9°C | 67 | 8.8 | 14.014 h |
| September | 21.0°C14.3°C | 14.3°C | 85 | 9.1 | 12.613 h |
| October | 14.0°C8.1°C | 8.1°C | 95 | 12.1 | 11.111 h |
| November | 7.2°C1.7°C | 1.7°C | 92 | 11.4 | 9.710 h |
| December | 1.7°C-4.0°C | -4.0°C | 87 | 12.7 | 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
- Whitby in JuneCanada · 9 kmHigh 22.0°C · Low 14.8°C · 93 mm rain
- Pickering in JuneCanada · 10 kmHigh 21.6°C · Low 14.0°C · 93 mm rain
- Oshawa in JuneCanada · 16 kmHigh 21.7°C · Low 14.6°C · 89 mm rain
- Markham in JuneCanada · 19 kmHigh 22.8°C · Low 14.1°C · 77 mm rain
- Thornhill in JuneCanada · 32 kmHigh 22.4°C · Low 14.2°C · 77 mm rain
- Richmond Hill in JuneCanada · 33 kmHigh 23.0°C · Low 13.7°C · 77 mm rain
- Toronto in JuneCanada · 33 kmHigh 21.5°C · Low 14.2°C · 77 mm rain
- Vaughan in JuneCanada · 37 kmHigh 22.8°C · Low 13.8°C · 77 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 Ajax) is explained once on the Ajax year overview and on the Sources, method and limits page.