Summer afternoons in Old Barrhaven East are warmer than in 86% of Canadian towns
January nights here settle around −14.3°C. Winter nights are cold: in January they are colder than in 61% of Canadian towns. The gap between a January night and a July afternoon is 41°C. Homes need heating from October to April, the months averaging under 10°C.
1991–2020 normals from ECCC’s Ottawa (Airport) location, 6.5 km north-east.
A year in Old Barrhaven East at a glance
Each month’s typical high and low, in °C.
What stands out about Old Barrhaven East’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Old Barrhaven East feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
154 frost days and 120 days above 20°C a year
From October to April frost is routine, and in January it comes on almost every night. Some 16 nights a year drop under −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 930 mm a year
June is the wettest month and February the driest. On about 118 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
232 cm of snow in a typical year
The snow season runs October to April; January brings the most, about 59 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Old Barrhaven East
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
The total grows by a degree for every degree a day’s mean sits under 18°C.
Living with Old Barrhaven East’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
The frost-free stretch runs from about 29 April to about 7 October, some 160 days in a normal year.
For long days outdoors, Jun, Jul, Aug and Sep bring highs of 17–27°C and lows of 8°C or more.
Parks & trails →A wind chill below −20 is part of about 47 days a year here.
Humid heat, a humidex over 30, comes on about 49 days a year.
For blizzards, floods and wildfire, turn to Old Barrhaven East’s hazards page.
Flood & hazards →ECCC’s normals location: Ottawa (Airport)
Ottawa (Airport) is a composite: ECCC joins 2 stations’ readings to make its 1991–2020 normals.
| Distance from the town | 6.5 km north-east |
| Station altitude | 114 m |
| Completeness | at least 25 years |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −33.1°C |
| Hottest reading, 1991–2020 | 36.9°C |
| Average wind | 13.5 km/h on average, most often from the west |
| Next-nearest location | Ottawa (City), 11 km |
How Old Barrhaven East 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
Places around Old Barrhaven East whose figures come from another normals location. The nearest places to Old Barrhaven East with figures are 9–29 km away.
Old Barrhaven East weather by month
Average daily high and low, mean temperature, rain and snow (as water) and snowfall by month, 1991–2020.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −5.5°C | −14.3°C | −10.0°C | 70 mm | 59 cm |
| February | −3.6°C | −13.2°C | −8.5°C | 50 mm | 49 cm |
| March | 2.4°C | −7.1°C | −2.4°C | 66 mm | 39 cm |
| April | 11.3°C | 0.5°C | 5.9°C | 81 mm | 12 cm |
| May | 19.6°C | 7.5°C | 13.6°C | 75 mm | under 1 cm |
| June | 24.4°C | 12.9°C | 18.7°C | 97 mm | 0 cm |
| July | 27.0°C | 15.4°C | 21.2°C | 89 mm | 0 cm |
| August | 25.8°C | 14.3°C | 20.1°C | 79 mm | 0 cm |
| September | 21.0°C | 9.6°C | 15.3°C | 90 mm | 0 cm |
| October | 13.0°C | 3.4°C | 8.2°C | 87 mm | 3 cm |
| November | 5.8°C | −2.4°C | 1.7°C | 74 mm | 21 cm |
| December | −1.9°C | −9.6°C | −5.8°C | 72 mm | 50 cm |
| Year | 11.6°C | 1.4°C | 6.5°C | 930 mm | 232 cm |
In March, anything from −29.0°C to 27.4°C
Two years in three, January’s average falls within 3.2°C of its normal of −10.0°C; August keeps to within 1.1°C.
Where Old Barrhaven East’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s normals for Ottawa (Airport), 1991–2020, chosen as the nearest location with a full temperature record.
- Comparisons: Canadian towns and neighbourhoods of at least 2,500, each placed by its nearest location (city totals and reserves excluded).
- Not on this page: a sunshine figure (ECCC published none for 1991–2020) and any lapse-rate correction for height, as the town has no elevation here.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Old Barrhaven East’s climate
How warm does Old Barrhaven East get in summer?
July is the warmest month, with average highs of 27.0°C.
How cold does Old Barrhaven East get in winter?
The year’s coldest nights belong to January, at about −14.3°C.
How much rain and snow does Old Barrhaven East get?
A normal year brings 930 mm, snow included as water: June is wettest at 97 mm, February driest at 50 mm.
How long does snow stay on the ground?
Around 118 days a year see 1 cm of snow or more lying.
Are these figures for Old Barrhaven East itself?
Close to it: they are ECCC’s 1991–2020 normals for Ottawa (Airport), just outside Old Barrhaven East’s boundary.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Old Barrhaven East →
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).