Stonebridge - Half Moon Bay has warmer summer afternoons than 86% of Canadian towns
January nights here settle around −14.3°C. Of all months, June brings the most precipitation and February the least. Winter nights are cold: in January they are colder than in 61% of Canadian towns. Heating does most of its work from October to April, in months below 10°C on average.
1991–2020 normals from ECCC’s Ottawa (Airport) location, 9.4 km north-east.
A year in Stonebridge - Half Moon Bay at a glance
Each month’s typical high and low, in °C.
What stands out about Stonebridge - Half Moon Bay’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Stonebridge - Half Moon Bay 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
The frost season runs October to April, and January freezes nearly 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
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
Snow falls from October to April, most of all in January (about 59 cm).
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Stonebridge - Half Moon Bay
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Behind the figure: the degrees each day’s mean falls under 18°C, summed for the year.
Living with Stonebridge - Half Moon Bay’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
Count on about 160 frost-free days: the last frost averages 29 April, the first 7 October.
Afternoons of 17–27°C and nights of at least 8°C arrive in Jun, Jul, Aug and Sep.
Parks & trails →Count on some 47 days a year when the wind makes it feel below −20.
A humidex above 30 marks about 49 days in a normal year.
A typical year is calm by definition; Stonebridge - Half Moon Bay’s hazards page covers the exceptions.
Flood & hazards →ECCC’s normals location: Ottawa (Airport)
Behind the 1991–2020 normals for Ottawa (Airport) are 2 stations, which ECCC combines into one record.
| Distance from the town | 9.4 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), 14 km |
How Stonebridge - Half Moon Bay 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 Stonebridge - Half Moon Bay’s would only repeat its figures. The nearest places to Stonebridge - Half Moon Bay with figures are 12–30 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Stonebridge - Half Moon Bay Ottawa (Airport) | 27.0°C | −14.3°C | 930 mm |
| Ottawa 12 km · Ottawa (City) | 26.7°C about the same | −14.0°C about the same | 938 mm |
| Kemptville 30 km · Kemptville | 26.8°C about the same | −14.0°C about the same | 925 mm |
Stonebridge - Half Moon Bay weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| 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 |
January strays furthest from its normal year to year, by 3.2°C; August the least
March has the widest record range, −29.0°C in 2003 to 27.4°C in 2012; the tick on each bar is the month’s normal.
Where Stonebridge - Half Moon Bay’s numbers come from
Averages over 30 years, not a forecast.
- Normals: Environment and Climate Change Canada’s 1991–2020 normals, Ottawa (Airport): the nearest of its locations with every month’s temperatures.
- 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: 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 Stonebridge - Half Moon Bay’s climate
How warm does Stonebridge - Half Moon Bay get in summer?
Of all twelve months, July has the warmest afternoons, about 27.0°C.
How cold does Stonebridge - Half Moon Bay get in winter?
Deep winter means January, when nights average −14.3°C.
How much rain and snow does Stonebridge - Half Moon Bay get?
Measured as water, a year brings 930 mm: 97 mm in June, the wettest month, and 50 mm in February, the driest.
How long does snow stay on the ground?
Count on about 118 days of snow cover a year, 1 cm or deeper.
Are these figures for Stonebridge - Half Moon Bay itself?
Almost: ECCC’s Ottawa (Airport) location, which gives these figures, lies a short way outside Stonebridge - Half Moon Bay.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Stonebridge - Half Moon Bay →
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).