Photo: unknown. Canada. Department of National Defence. · Public domainSummers, winters, rain and snow in Picton all run close to those of most Canadian towns
January nights average −11.2°C, July afternoons 26.5°C, and a year brings 941 mm of rain and melted snow. Temperatures cover 38°C across the year, low to high. By frosts alone, it ranks gentler than 68% of Canadian towns. Wet days, with 1 mm of rain or snow or more, come about 116 times a year.
Picton has no ECCC normals station of its own: every figure here comes from Trenton, 24 km north-west.
A year in Picton at a glance
Each month’s typical high and low, in °C.
What stands out about Picton’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Picton feels like
Each season’s and each month’s usual high and low, 1991–2020.
146 frost days and 124 days above 20°C a year
The frost season runs October to May, and January freezes nearly every night. On about 9 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 941 mm a year
The most falls in September, the least in February.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
155 cm of snow in a typical year
From November to April snow is likely; January is the peak, at about 44 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Picton
92% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Think of it as a year’s worth of daily shortfalls below 18°C, added up. That means homes here need less heating than 70% of Canadian towns.
Living with Picton’s climate
What the normals mean for a garden, a day outside and the depth of winter.
From about 1 May to 10 October the garden is usually clear of frost, some 161 days.
The comfortable months for a day outside, highs of 17–27°C and nights of 8°C or more: Jun, Jul, Aug and Sep.
Parks & trails →Plan for about 28 days a year with a wind chill below −20.
Humid summer days, the humidex above 30, number about 51 a year.
Storms, floods and heat waves sit outside these normals; Picton’s hazards page covers them.
Flood & hazards →ECCC’s normals location: Trenton
The page’s figures are ECCC’s 1991–2020 normals for Trenton, one of its 450 normals locations.
| Distance from the town | 24 km north-west |
| Station altitude | 86 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | Yes |
| Coldest reading, 1991–2020 | −35.1°C |
| Hottest reading, 1991–2020 | 35.6°C |
| Average wind | 12.7 km/h on average, most often from the south-west |
| Next-nearest location | Point Petre, 24 km |
How Picton 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 Picton’s would only repeat its figures. Picton has few close neighbours with figures, so the list reaches 25–49 km out.
Picton 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 | −1.6°C | −11.2°C | −6.4°C | 78 mm | 44 cm |
| February | −0.7°C | −10.6°C | −5.7°C | 60 mm | 39 cm |
| March | 4.4°C | −5.5°C | −0.6°C | 64 mm | 22 cm |
| April | 11.6°C | 0.9°C | 6.3°C | 84 mm | 6 cm |
| May | 18.9°C | 7.3°C | 13.1°C | 81 mm | 0 cm |
| June | 23.9°C | 12.7°C | 18.3°C | 83 mm | 0 cm |
| July | 26.5°C | 15.4°C | 21.0°C | 75 mm | 0 cm |
| August | 25.6°C | 14.4°C | 20.0°C | 70 mm | 0 cm |
| September | 21.6°C | 10.1°C | 15.8°C | 92 mm | 0 cm |
| October | 14.2°C | 4.2°C | 9.2°C | 91 mm | 1 cm |
| November | 7.4°C | −1.5°C | 3.0°C | 84 mm | 10 cm |
| December | 1.4°C | −6.9°C | −2.8°C | 77 mm | 33 cm |
| Year | 12.8°C | 2.4°C | 7.6°C | 941 mm | 155 cm |
January strays furthest from its normal year to year, by 3.0°C; June the least
The thirty-year records stretch furthest in March: a low of −25.6°C in 2003 and a high of 25.4°C in 1998.
Where Picton’s numbers come from
Averages over 30 years, not a forecast.
- Normals: Environment and Climate Change Canada’s 1991–2020 normals, Trenton: the nearest of its locations with every month’s temperatures.
- Comparisons: the towns and neighbourhoods of 2,500+ across Canada, each on its nearest normals location, without the city totals or the reserves.
- Not on this page: sunshine, not in ECCC’s 1991–2020 normals, and the effect of the town’s height, for which there is no figure.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Picton’s climate
How warm does Picton get in summer?
Afternoons average 26.5°C in July, the warmest time of year.
How cold does Picton get in winter?
January nights average −11.2°C, the coldest of the year.
How much rain and snow does Picton get?
941 mm a year counting snow as water. The wettest month is September (92 mm); the driest, February (60 mm).
How long does snow stay on the ground?
Expect snow on the ground, at least 1 cm, for about 75 days a year.
Are these figures for Picton itself?
No. ECCC measures normals at Trenton, not in Picton; the page uses the nearest it has.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Picton →
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).