Wet weather: 1,340 mm of rain and snow a year falls on Bolton-Est, more than on 94% of Canadian towns
The warmest part of a July day comes in at 25.3°C on average. Precipitation peaks in July and eases off in February. Windshields need scraping on about 159 mornings a year, the days the air reaches 0°C or below.
Borrowed figures: Bolton-Est has no normals station, so these come from Sutton, 31 km south-west.
A year in Bolton-Est at a glance
Each month’s typical high and low, in °C.
What stands out about Bolton-Est’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Bolton-Est feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
About 159 frosts and 111 warm days a year
The frost season runs October to May, 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 1,340 mm a year
2nd wettest of 514 towns of 2,500+ in Quebec. On about 156 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
321 cm of snow in a typical year
From October to May snow is likely; December is the peak, at about 68 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Bolton-Est
91% 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.
Living with Bolton-Est’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
A normal year gives the garden about 139 frost-free days, roughly 15 May to 2 October.
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 →The normals describe a typical year, not its worst days; the hazards page covers Bolton-Est’s.
Flood & hazards →ECCC’s normals location: Sutton
The page’s figures are ECCC’s 1991–2020 normals for Sutton, one of its 450 normals locations.
| Distance from the town | 31 km south-west |
| Station altitude | 244 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −36.5°C |
| Hottest reading, 1991–2020 | 33.5°C |
| Next-nearest location | Granby, 36 km |
How Bolton-Est compares
Placed among 2,611 Canadian towns and neighbourhoods of 2,500+, each on its nearest normals location; each dot is another location used in Quebec.
Nearby towns’ climate
The nearest places on a normals location of their own: those that share Bolton-Est’s would only repeat its figures.
Bolton-Est 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 | −3.9°C | −13.5°C | −8.9°C | 97 mm | 63 cm |
| February | −2.3°C | −12.3°C | −7.4°C | 84 mm | 62 cm |
| March | 2.8°C | −6.7°C | −2.0°C | 100 mm | 58 cm |
| April | 10.8°C | 0.4°C | 5.8°C | 111 mm | 26 cm |
| May | 18.6°C | 7.1°C | 12.8°C | 115 mm | 2 cm |
| June | 22.9°C | 11.9°C | 17.4°C | 114 mm | 0 cm |
| July | 25.3°C | 14.5°C | 19.7°C | 128 mm | 0 cm |
| August | 24.3°C | 13.7°C | 19.0°C | 123 mm | 0 cm |
| September | 20.3°C | 9.6°C | 14.9°C | 119 mm | 0 cm |
| October | 13.1°C | 3.9°C | 8.5°C | 127 mm | 9 cm |
| November | 5.9°C | −2.1°C | 2.0°C | 112 mm | 34 cm |
| December | −0.7°C | −8.7°C | −4.8°C | 111 mm | 68 cm |
| Year | 11.4°C | 1.5°C | 6.4°C | 1,340 mm | 321 cm |
From year to year, January moves by 3.2°C, more than any month, and August least
Records from 1991 to 2020: no month spans more than February, between −36.5°C (1993) and 19.0°C (2018).
Where Bolton-Est’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the closest ECCC location with twelve months of temperature normals, Sutton, 1991–2020.
- 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: 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 Bolton-Est’s climate
How warm does Bolton-Est get in summer?
July is the warmest month, with average highs of 25.3°C.
How cold does Bolton-Est get in winter?
A typical January night falls to −13.5°C, the year’s low point.
How much rain and snow does Bolton-Est get?
Count on roughly 1,340 mm a year, heaviest in July (128 mm) and lightest in February (84 mm).
How long does snow stay on the ground?
About 123 days a year count as snow-covered, with 1 cm or more.
Are these figures for Bolton-Est itself?
Not quite: they come from Sutton, the closest ECCC normals location to Bolton-Est.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Bolton-Est →
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).