Summer afternoons in Katimavik-Hazeldean are warmer than in 78% of Canadian towns
The coldest hours of a January night bottom out at −14.0°C on average. Its yearly rain and snow top those of 60% of Canadian towns. The seasons are far apart: from a winter night to a summer afternoon the average spans 41°C. Heating does most of its work from October to April, in months below 10°C on average.
Figures: ECCC’s 1991–2020 normals for Ottawa (City) (16 km north-east).
A year in Katimavik-Hazeldean at a glance
Each month’s typical high and low, in °C.
What stands out about Katimavik-Hazeldean’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Katimavik-Hazeldean feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
147 frost days and 121 days above 20°C a year
The frost season runs October to April, and January freezes nearly every night. On about 15 nights a year the air falls below −20°C.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
Rain and melted snow: about 938 mm a year
June is the wettest month and February the driest. On about 120 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 185 cm of snow a year
Expect snow from October to April, with about 45 cm in January, the snowiest month.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Katimavik-Hazeldean
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
A heating degree day is one degree of shortfall below 18°C for one day, summed over the year.
Living with Katimavik-Hazeldean’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
The growing season between frosts lasts about 158 days, roughly 30 April to 6 October.
Warm afternoons without cold nights, 17–27°C and 8°C or more, mark May, Jun, Jul, Aug and Sep.
Parks & trails →Frostbite weather, a wind chill under −20, turns up on about 39 days a year.
Expect around 50 sticky days a year with the humidex above 30.
For blizzards, floods and wildfire, turn to Katimavik-Hazeldean’s hazards page.
Flood & hazards →ECCC’s normals location: Ottawa (City)
ECCC builds the Ottawa (City) normals from 2 stations’ records over 1991–2020, joined where one replaced another.
| Distance from the town | 16 km north-east |
| Station altitude | 79 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | Yes |
| Coldest reading, 1991–2020 | −32.2°C |
| Hottest reading, 1991–2020 | 37.3°C |
| Average wind | 11.5 km/h on average, most often from the west |
| Next-nearest location | Ottawa (Airport), 18 km |
How Katimavik-Hazeldean compares
Compared with 2,611 towns and neighbourhoods of 2,500 or more across Canada; the dots mark the other normals locations in Ontario.
Nearby towns’ climate
The nearest places on a normals location of their own: those that share Katimavik-Hazeldean’s would only repeat its figures. The nearest places to Katimavik-Hazeldean with figures are 22–28 km away.
Katimavik-Hazeldean weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −5.2°C | −14.0°C | −9.6°C | 65 mm | 45 cm |
| February | −3.3°C | −12.9°C | −8.1°C | 52 mm | 41 cm |
| March | 2.5°C | −6.9°C | −2.2°C | 62 mm | 31 cm |
| April | 11.2°C | 1.1°C | 6.2°C | 81 mm | 8 cm |
| May | 19.4°C | 8.0°C | 13.8°C | 80 mm | 0 cm |
| June | 24.2°C | 13.3°C | 18.8°C | 95 mm | 0 cm |
| July | 26.7°C | 15.8°C | 21.3°C | 92 mm | 0 cm |
| August | 25.6°C | 14.6°C | 20.1°C | 87 mm | 0 cm |
| September | 21.1°C | 10.1°C | 15.6°C | 87 mm | 0 cm |
| October | 13.3°C | 4.1°C | 8.8°C | 90 mm | 2 cm |
| November | 5.8°C | −1.8°C | 2.0°C | 72 mm | 16 cm |
| December | −1.5°C | −8.7°C | −5.1°C | 74 mm | 43 cm |
| Year | 11.7°C | 1.9°C | 6.8°C | 938 mm | 185 cm |
January varies most from one year to the next (3.1°C), June least
Bars run from each month’s record low to its record high since 1991. March spans the most, from −28.5°C (2003) to 26.5°C (2012).
Where Katimavik-Hazeldean’s numbers come from
Averages over 30 years, not a forecast.
- Normals: 1991–2020 normals for Ottawa (City) from ECCC’s climate data site, the nearest location with every month of temperature.
- Comparisons: every place of 2,500+ in Canada but the city hubs and the reserves, each on its nearest ECCC location.
- Not on this page: sunshine, which none of ECCC’s 450 locations publishes for 1991–2020, and the town’s own height above sea level, so no figure is adjusted for altitude.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Katimavik-Hazeldean’s climate
How warm does Katimavik-Hazeldean get in summer?
July is the warmest month, with average highs of 26.7°C.
How cold does Katimavik-Hazeldean get in winter?
Lows sink to −14.0°C on an average January night.
How much rain and snow does Katimavik-Hazeldean get?
Rain and snow add up to about 938 mm of water a year; June brings the most (95 mm), February the least (52 mm).
How long does snow stay on the ground?
About 115 days a year count as snow-covered, with 1 cm or more.
Are these figures for Katimavik-Hazeldean itself?
Nearly: Ottawa (City), the location behind them, sits just beyond Katimavik-Hazeldean’s boundary.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Katimavik-Hazeldean →
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).