Climate averages 1991–2020
Peterborough, Canada weather
in December.
A cold month with moderate precipitation: the 10th warmest and the joint 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cold month in Peterborough, Canada: daytime highs average 0.3°C and nights cool to about -6.7°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 68 mm of precipitation on roughly 11 days, which makes December a month with moderate precipitation (the joint 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 8 h 56 min on an average December day.
The nearest other city in this atlas is Oshawa (62 km away). In December its highs average 1.8°C, 1.5°C warmer than Peterborough, Canada, with 67 mm of precipitation.
Among the 86 cities listed in Canada, Peterborough, Canada ranks 48th of 86 for the warmest December highs and joint 36th of 86 for the driest December (precipitation, lowest first). The mean December high of those 86 cities is 0.2°C; Peterborough, Canada is 0.1°C warmer than that mean.
From December to January, average highs fall by 3.4°C to -3.1°C, and monthly precipitation stays at 68 mm.
The annual picture
December 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
Peterborough, Canada climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -3.1°C-12.0°C | -12.0°C | 68 | 10.7 | 9.39 h |
| February | -1.9°C-11.5°C | -11.5°C | 53 | 8.3 | 10.410 h |
| March | 3.5°C-6.1°C | -6.1°C | 62 | 10.3 | 11.912 h |
| April | 11.0°C1.2°C | 1.2°C | 87 | 11.5 | 13.413 h |
| May | 18.5°C8.4°C | 8.4°C | 82 | 10.7 | 14.815 h |
| June | 23.4°C14.1°C | 14.1°C | 92 | 10.9 | 15.515 h |
| July | 25.8°C17.0°C | 17.0°C | 88 | 10.9 | 15.215 h |
| August | 24.7°C16.4°C | 16.4°C | 85 | 10.5 | 14.014 h |
| September | 20.7°C12.6°C | 12.6°C | 85 | 9.6 | 12.613 h |
| October | 13.3°C6.3°C | 6.3°C | 85 | 11.5 | 11.011 h |
| November | 6.2°C-0.1°C | -0.1°C | 74 | 10.3 | 9.710 h |
| December, selected | 0.3°C-6.7°C | -6.7°C | 68 | 10.6 | 8.99 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
December in nearby cities
- Oshawa in DecemberCanada · 62 kmHigh 1.8°C · Low -3.8°C · 67 mm precipitation
- Whitby in DecemberCanada · 68 kmHigh 1.8°C · Low -3.8°C · 65 mm precipitation
- Ajax in DecemberCanada · 76 kmHigh 1.7°C · Low -4.0°C · 87 mm precipitation
- Pickering in DecemberCanada · 79 kmHigh 1.0°C · Low -4.9°C · 62 mm precipitation
- Markham in DecemberCanada · 90 kmHigh 1.5°C · Low -4.8°C · 81 mm precipitation
- Newmarket in DecemberCanada · 96 kmHigh 0.5°C · Low -6.4°C · 57 mm precipitation
- Richmond Hill in DecemberCanada · 101 kmHigh 1.1°C · Low -5.3°C · 61 mm precipitation
- Thornhill in DecemberCanada · 104 kmHigh 1.7°C · Low -4.0°C · 61 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 Peterborough) is explained once on the Peterborough, Canada year overview and on the Sources, method and limits page.