Climate averages 1991–2020
Greater Sudbury weather
in January.
A freezing month with moderate precipitation: the coolest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a freezing month in Greater Sudbury: daytime highs average -7.4°C and nights cool to about -16.7°C. By daytime temperature it is the coolest month of the year.
Expect about 53 mm of precipitation on roughly 10 days, which makes January a month with moderate precipitation (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 02 min on an average January day.
The nearest other city in this atlas is Barrie (254 km away). In January its highs average -3.3°C, 4.0°C warmer than Greater Sudbury, with 61 mm of precipitation.
Among the 86 cities listed in Canada, Greater Sudbury ranks 78th of 86 for the warmest January highs and 14th of 86 for the driest January (precipitation, lowest first). The mean January high of those 86 cities is -2.3°C; Greater Sudbury is 5.0°C cooler than that mean.
From January to February, average highs rise by 1.6°C to -5.7°C, and monthly precipitation falls from 53 mm to 41 mm.
The annual picture
January 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, selected | -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 | 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
January in nearby cities
- Barrie in JanuaryCanada · 254 kmHigh -3.3°C · Low -11.4°C · 61 mm precipitation
- Sault Ste. Marie in JanuaryCanada · 256 kmHigh -6.5°C · Low -13.1°C · 46 mm precipitation
- Newmarket in JanuaryCanada · 296 kmHigh -2.6°C · Low -11.3°C · 57 mm precipitation
- Caledon in JanuaryCanada · 302 kmHigh -3.1°C · Low -11.0°C · 61 mm precipitation
- Richmond Hill in JanuaryCanada · 316 kmHigh -2.0°C · Low -10.1°C · 60 mm precipitation
- Vaughan in JanuaryCanada · 317 kmHigh -1.8°C · Low -9.4°C · 60 mm precipitation
- Peterborough, Canada in JanuaryCanada · 321 kmHigh -3.1°C · Low -12.0°C · 68 mm precipitation
- Markham in JanuaryCanada · 321 kmHigh -1.7°C · Low -9.5°C · 81 mm precipitation
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.