Photo: SimonP at en.wikipedia · CC BY-SA 3.0Afternoon heat in Arnprior beats that of 83% of Canadian towns
On a normal January night the air cools to about −16.0°C. Temperatures cover 43°C across the year, low to high. Its January nights bite harder than in 75% of Canadian towns. The heating season runs October to April: each of those months averages under 10°C.
No ECCC station in Arnprior has 1991–2020 normals; the page reads Luskville, 27 km north-east, instead.
A year in Arnprior at a glance
Each month’s typical high and low, in °C.
What stands out about Arnprior’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Arnprior feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
170 frost days and 119 days above 20°C a year
Frost comes from September to May; in January almost every night freezes. Deep cold, under −20°C, comes on about 27 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 968 mm a year
June is the wettest month and February the driest. On about 137 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
193 cm of snow in a typical year
Snow falls from October to April, most of all in January (about 53 cm).
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Arnprior
92% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
The count adds up, day by day, how far the mean temperature falls short of 18°C.
Living with Arnprior’s climate
What the normals mean for a garden, a day outside and the depth of winter.
From about 20 May to 22 September the garden is usually clear of frost, some 124 days.
Mild days and mild nights together (17–27°C by day, 8°C or more at night) belong to Jun, Jul, Aug and Sep.
Parks & trails →Severe weather is a separate story from the averages: see Arnprior’s hazards page.
Flood & hazards →ECCC’s normals location: Luskville
The page’s figures are ECCC’s 1991–2020 normals for Luskville, one of its 450 normals locations.
| Distance from the town | 27 km north-east |
| Station altitude | 69 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | Yes |
| Coldest reading, 1991–2020 | −40.0°C |
| Hottest reading, 1991–2020 | 36.4°C |
| Next-nearest location | Charteris, 28 km |
How Arnprior 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 Arnprior whose figures come from another normals location.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Arnprior Luskville | 26.9°C | −16.0°C | 968 mm |
| McNab/Braeside 7.5 km · Charteris | 26.4°C 0.5°C cooler | −16.9°C 0.9°C colder | 968 mm |
| Kinburn 14 km · Luskville | 26.9°C about the same | −16.0°C about the same | 968 mm |
Arnprior weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −5.4°C | −16.0°C | −10.9°C | 77 mm | 53 cm |
| February | −3.2°C | −15.3°C | −9.2°C | 63 mm | 43 cm |
| March | 2.6°C | −8.4°C | −3.0°C | 63 mm | 31 cm |
| April | 11.3°C | −0.2°C | 5.7°C | 74 mm | 6 cm |
| May | 19.8°C | 6.4°C | 13.1°C | 79 mm | 0 cm |
| June | 24.5°C | 11.6°C | 18.1°C | 99 mm | 0 cm |
| July | 26.9°C | 13.9°C | 20.2°C | 97 mm | 0 cm |
| August | 25.7°C | 12.8°C | 19.2°C | 96 mm | 0 cm |
| September | 21.2°C | 8.6°C | 14.9°C | 87 mm | 1 cm |
| October | 13.3°C | 2.8°C | 8.1°C | 84 mm | 1 cm |
| November | 5.6°C | −3.1°C | 1.4°C | 74 mm | 16 cm |
| December | −1.8°C | −10.5°C | −6.3°C | 76 mm | 43 cm |
| Year | 11.7°C | 0.2°C | 5.9°C | 968 mm | 193 cm |
January strays furthest from its normal year to year, by 3.5°C; August the least
Records from 1991 to 2020: no month spans more than March, between −34.0°C (2003) and 28.0°C (2012).
Where Arnprior’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s normals for Luskville, 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 Arnprior’s climate
How warm does Arnprior get in summer?
In July, the warmest month, the typical high is 26.9°C.
How cold does Arnprior get in winter?
Overnight lows average −16.0°C in January, the coldest month.
How much rain and snow does Arnprior get?
The year adds up to 968 mm. June is the peak month (99 mm) and February the low one (63 mm).
How long does snow stay on the ground?
In a normal winter there are about 108 days with at least 1 cm of snow lying.
Are these figures for Arnprior itself?
They are the closest available: the normals for Luskville, since Arnprior has none.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Arnprior →
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).