Hardly any Canadian towns collect more precipitation than Sunnyside: 1,649 mm a year
Deep winter brings January lows near 0.5°C. In January, nights here are milder than in 95% of Canadian towns. Winter and summer sit 25°C apart. Plan for rain or snow on about 148 days a year, the days with 1 mm or more.
ECCC publishes no normals for Sunnyside itself; the figures are those of Pitt Meadows, 20 km north.
A year in Sunnyside at a glance
Each month’s typical high and low, in °C.
What stands out about Sunnyside’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in British Columbia beside it.
What a year in Sunnyside feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
Frost on 60 days, 20°C on 107
The frost season runs October to April, peaking in December at about 15 nights. About 11 days a year top 30°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 1,649 mm a year
The most falls in January, the least in August. 10th wettest of 255 towns of 2,500+ in British Columbia.
Rain and snow by month
Millimetres
Snowfall: about 56 cm in a normal year
The snow season runs November to March; January brings the most, about 22 cm.
Snowfall by month
Centimetres
Snowfall: Abbotsford, 31 km away (Pitt Meadows records no complete year of it).
Heating a home in Sunnyside
88% of a year’s heating need falls between October and April. Months averaging under 10°C: November to April.
The count adds up, day by day, how far the mean temperature falls short of 18°C. A house here needs less heating than 96% of Canadian towns.
Living with Sunnyside’s climate
What the normals mean for a garden, a day outside and the depth of winter.
On average the last spring frost comes around 11 April and the first autumn frost around 30 October: about 201 frost-free days between.
Plan time outside for Jun, Jul, Aug and Sep: highs of 17–27°C and nights no colder than 8°C.
Parks & trails →The air feels heavier than 30 on the humidex for about 26 days a year.
Severe weather is a separate story from the averages: see Sunnyside’s hazards page.
Flood & hazards →ECCC’s normals location: Pitt Meadows
Every temperature, frost, snow and degree-day figure on this page is the 1991–2020 normal ECCC publishes for Pitt Meadows.
| Distance from the town | 20 km north |
| Station altitude | 5 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Snowfall from | Abbotsford, 31 km |
| Coldest reading, 1991–2020 | −16.3°C |
| Hottest reading, 1991–2020 | 37.6°C |
| Average wind | 4.8 km/h on average, most often from the east |
| Next-nearest location | Abbotsford, 31 km |
How Sunnyside compares
Against the 2,611 Canadian towns and neighbourhoods of 2,500 or more, each read from its own normals location; the dots are the other locations those towns use in British Columbia.
Nearby towns’ climate
Nearby places read from a different ECCC location (places on Sunnyside’s own would show the same figures). No closer places have figures: these lie 17–28 km from Sunnyside.
Sunnyside weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | 6.8°C | 0.5°C | 3.6°C | 252 mm | 22 cm |
| February | 8.8°C | 0.4°C | 4.6°C | 134 mm | 7 cm |
| March | 11.3°C | 2.3°C | 6.8°C | 173 mm | 5 cm |
| April | 14.9°C | 4.5°C | 9.7°C | 105 mm | 1 cm |
| May | 19.0°C | 7.9°C | 13.5°C | 95 mm | 0 cm |
| June | 21.3°C | 10.8°C | 16.1°C | 69 mm | 0 cm |
| July | 25.0°C | 12.6°C | 18.8°C | 48 mm | 0 cm |
| August | 25.1°C | 12.4°C | 18.8°C | 36 mm | 0 cm |
| September | 21.5°C | 9.8°C | 15.7°C | 94 mm | 0 cm |
| October | 15.0°C | 5.9°C | 10.5°C | 180 mm | 0 cm |
| November | 9.6°C | 2.4°C | 6.0°C | 249 mm | 7 cm |
| December | 6.1°C | 0.1°C | 3.1°C | 214 mm | 14 cm |
| Year | 15.4°C | 5.8°C | 10.6°C | 1,649 mm | 56 cm |
The most changeable month: February, give or take 1.7°C; the steadiest, October
September has the widest record range, 0.9°C in 2000 to 34.4°C in 2017; the tick on each bar is the month’s normal.
Where Sunnyside’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s normals for Pitt Meadows, 1991–2020, chosen as the nearest location with a full temperature record.
- Other locations: a location missing months of precipitation or snow is filled from the nearest that has them all, never mixed month by month.
- Comparisons: a pool of Canadian towns and neighbourhoods of 2,500 or more, read alike; whole cities and reserves stay out of it.
- 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 Sunnyside’s climate
How warm does Sunnyside get in summer?
Peak warmth comes in August, at about 25.1°C by mid-afternoon.
How cold does Sunnyside get in winter?
The year’s coldest nights belong to December, at about 0.1°C.
How much rain and snow does Sunnyside get?
Over twelve months, rain and melted snow come to 1,649 mm; the range runs from 36 mm in August to 252 mm in January.
Are these figures for Sunnyside itself?
No, the station behind them is Pitt Meadows, beyond Sunnyside’s boundary.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Sunnyside →
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).