Photo: 40rev · CC BY-SA 3.0Moosonee has some of the coldest winter nights among Canadian towns
Peak summer warmth arrives in July, with afternoons near 22.9°C. Its July afternoons stay fresher than in 92% of Canadian towns. The year is lopsided: September gets about 2.9 times what February does. Expect about 216 frosty starts a year, days when the air falls to freezing.
Measured at Moosonee, 2.9 km north-east: ECCC’s normals for 1991–2020.
A year in Moosonee at a glance
Each month’s typical high and low, in °C.
What stands out about Moosonee’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Moosonee feels like
Each season’s and each month’s usual high and low, 1991–2020.
Frost on 216 days, 20°C on 69
Frost comes from September to June; in January almost every night freezes. Deep cold, under −20°C, comes on about 73 nights a year.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
Rain and melted snow: about 700 mm a year
872nd wettest of 872 towns of 2,500+ in Ontario. Some 114 days a year see 1 mm of rain or snow or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Snowfall: about 211 cm in a normal year
The snow season runs October to May; December brings the most, about 49 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Moosonee
86% of a year’s heating need falls between October and April. Months averaging under 10°C: October to May.
Measured against 18°C: each day’s shortfall in mean temperature, added over twelve months. By this count, homes here need more heating than almost every Canadian town.
Living with Moosonee’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
The comfortable months for a day outside, highs of 17–27°C and nights of 8°C or more: Jul and Aug.
Parks & trails →On some 100 days a year the wind chill drops past −20; mitts and a scarf earn their place.
Humid summer days, the humidex above 30, number about 21 a year.
Thirty years of averages say little about one bad storm; Moosonee’s hazards page does.
Flood & hazards →ECCC’s normals location: Moosonee
Moosonee is a composite: ECCC joins 5 stations’ readings to make its 1991–2020 normals.
| Distance from the town | 2.9 km north-east |
| Station altitude | 9 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −47.8°C |
| Hottest reading, 1991–2020 | 37.1°C |
| Average wind | 11.2 km/h on average, most often from the west |
| Next-nearest location | Kapuskasing, 244 km |
How Moosonee compares
Compared with 2,611 towns and neighbourhoods of 2,500 or more across Canada; the dots mark the other normals locations in Ontario.
Moosonee weather by month
Month by month, 1991–2020: the usual high, low and mean, the rain and snow, and the snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −13.0°C | −24.4°C | −18.7°C | 35 mm | 36 cm |
| February | −10.8°C | −23.9°C | −17.4°C | 31 mm | 33 cm |
| March | −4.0°C | −18.0°C | −11.0°C | 33 mm | 30 cm |
| April | 3.8°C | −8.1°C | −2.2°C | 37 mm | 16 cm |
| May | 12.7°C | 0.1°C | 6.4°C | 66 mm | 3 cm |
| June | 19.8°C | 5.7°C | 12.7°C | 68 mm | 0 cm |
| July | 22.9°C | 9.8°C | 16.3°C | 90 mm | 0 cm |
| August | 21.6°C | 9.4°C | 15.5°C | 80 mm | 0 cm |
| September | 16.9°C | 5.8°C | 11.3°C | 91 mm | under 1 cm |
| October | 8.9°C | 0.6°C | 4.9°C | 72 mm | 7 cm |
| November | 0.1°C | −7.5°C | −3.6°C | 54 mm | 38 cm |
| December | −8.8°C | −18.2°C | −13.5°C | 44 mm | 49 cm |
| Year | 5.8°C | −5.7°C | 0.1°C | 700 mm | 211 cm |
Two years in three, December’s average lands within 3.7°C of normal, against the steadier August
Over 1991–2020, March saw both −39.5°C (1997) and 24.5°C (2012), the widest span of any month.
Where Moosonee’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 normals from ECCC for Moosonee, its nearest location with complete temperatures.
- Comparisons: Canada’s towns and neighbourhoods of 2,500+ (no city totals, no reserves), each through its own nearest location.
- Not on this page: hours of sunshine, missing from the 1991–2020 normals, and a height correction: the town has no elevation on file.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Moosonee’s climate
How warm does Moosonee get in summer?
Expect highs near 22.9°C in July, the hottest month on average.
How cold does Moosonee get in winter?
A typical January night falls to −24.4°C, the year’s low point.
How much rain and snow does Moosonee get?
Rain and snow, with snow counted as water, total 700 mm a year; September leads with 91 mm and February trails with 31 mm.
Are these figures for Moosonee itself?
They are: the normals station that gives them stands in Moosonee.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Moosonee →
Adapted from Statistics Canada (Census of Population 2021, population estimates 2025, 2021 census boundaries) under the Statistics Canada Open Licence; this does not constitute an endorsement by Statistics Canada. Neighbourhood names in some cities © OpenStreetMap contributors (ODbL).