Climate averages 1991–2020
Ajax weather
in March.
A cold, moderately wet month: the 9th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a cold month in Ajax: daytime highs average 3.5°C and nights cool to about -4.3°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 70 mm of rain on roughly 10 days, which makes March a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 54 min on an average March day.
The nearest other city in this atlas is Whitby (9 km away). In March its highs average 3.4°C, about as warm as Ajax, with 61 mm of rain.
Among the 86 cities listed in Canada, Ajax ranks joint 42nd of 86 for the warmest March highs and joint 44th of 86 for the driest March (rainfall, lowest first). The mean March high of those 86 cities is 3.8°C; Ajax is 0.3°C cooler than that mean.
From March to April, average highs rise by 6.5°C to 10.0°C, and monthly rainfall rises from 70 mm to 96 mm.
The annual picture
March 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, selected | 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 | 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
March in nearby cities
- Whitby in MarchCanada · 9 kmHigh 3.4°C · Low -4.1°C · 61 mm rain
- Pickering in MarchCanada · 10 kmHigh 2.9°C · Low -5.1°C · 59 mm rain
- Oshawa in MarchCanada · 16 kmHigh 3.2°C · Low -4.1°C · 60 mm rain
- Markham in MarchCanada · 19 kmHigh 3.9°C · Low -4.8°C · 68 mm rain
- Thornhill in MarchCanada · 32 kmHigh 3.8°C · Low -4.6°C · 57 mm rain
- Richmond Hill in MarchCanada · 33 kmHigh 3.8°C · Low -5.3°C · 57 mm rain
- Toronto in MarchCanada · 33 kmHigh 3.3°C · Low -4.3°C · 57 mm rain
- Vaughan in MarchCanada · 37 kmHigh 3.9°C · Low -5.1°C · 57 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.