Climate averages 1991–2020
Greater Sudbury weather
in March.
A cold month with moderate precipitation: the 9th warmest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a cold month in Greater Sudbury: daytime highs average 0.4°C and nights cool to about -9.4°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 50 mm of precipitation on roughly 8 days, which makes March a month with moderate precipitation (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 52 min on an average March day.
The nearest other city in this atlas is Barrie (254 km away). In March its highs average 2.6°C, 2.2°C warmer than Greater Sudbury, with 57 mm of rain.
Among the 86 cities listed in Canada, Greater Sudbury ranks 79th of 86 for the warmest March highs and 15th of 86 for the driest March (precipitation, lowest first). The mean March high of those 86 cities is 3.8°C; Greater Sudbury is 3.3°C cooler than that mean.
From March to April, average highs rise by 7.7°C to 8.2°C, and monthly precipitation rises from 50 mm to 70 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
Greater Sudbury climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -7.4°C-16.7°C | -16.7°C | 53 | 10.1 | 9.09 h |
| February | -5.7°C-15.2°C | -15.2°C | 41 | 7.7 | 10.310 h |
| March, selected | 0.4°C-9.4°C | -9.4°C | 50 | 7.8 | 11.912 h |
| April | 8.2°C-2.0°C | -2.0°C | 70 | 9.8 | 13.514 h |
| May | 16.8°C5.8°C | 5.8°C | 72 | 10.6 | 15.015 h |
| June | 22.1°C12.1°C | 12.1°C | 81 | 10.7 | 15.716 h |
| July | 24.2°C15.0°C | 15.0°C | 87 | 10.7 | 15.415 h |
| August | 23.0°C14.4°C | 14.4°C | 90 | 11.2 | 14.214 h |
| September | 18.6°C10.5°C | 10.5°C | 92 | 11.0 | 12.613 h |
| October | 10.9°C3.9°C | 3.9°C | 94 | 12.7 | 10.911 h |
| November | 3.3°C-3.4°C | -3.4°C | 73 | 11.0 | 9.59 h |
| December | -3.4°C-11.4°C | -11.4°C | 59 | 11.1 | 8.79 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
- Barrie in MarchCanada · 254 kmHigh 2.6°C · Low -6.5°C · 57 mm rain
- Sault Ste. Marie in MarchCanada · 256 kmHigh -0.5°C · Low -7.6°C · 46 mm precipitation
- Newmarket in MarchCanada · 296 kmHigh 3.7°C · Low -6.0°C · 56 mm rain
- Caledon in MarchCanada · 302 kmHigh 3.2°C · Low -6.3°C · 59 mm rain
- Richmond Hill in MarchCanada · 316 kmHigh 3.8°C · Low -5.3°C · 57 mm rain
- Vaughan in MarchCanada · 317 kmHigh 3.9°C · Low -5.1°C · 57 mm rain
- Peterborough, Canada in MarchCanada · 321 kmHigh 3.5°C · Low -6.1°C · 62 mm rain
- Markham in MarchCanada · 321 kmHigh 3.9°C · Low -4.8°C · 68 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 Greater Sudbury) is explained once on the Greater Sudbury year overview and on the Sources, method and limits page.