Climate in Semiahmoo Town Centre · ECCC 1991–2020 normals

Hardly any Canadian towns collect more precipitation than Semiahmoo Town Centre: 1,649 mm a year

January nights here settle around 0.5°C. Winters are mild: January nights here are milder than in 95% of Canadian towns. From frozen January to warm July, readings climb 25°C. Picnics, hikes and garden evenings come into their own from June to September, with highs of 21–25°C.

July afternoons: cooler than 62% of Canadian towns

January nights: milder than 95% of Canadian towns

Rain and snow a year: wetter than almost every Canadian town

These are not Semiahmoo Town Centre’s own readings: ECCC keeps no normals there, so the page uses Pitt Meadows, 21 km north.

July high

25.0°C

Typical Canadian town 25.5°C

January low

0.5°C

Typical Canadian town −13.5°C

Rain & snow a year

1,649 mm

Typical Canadian town 883 mm

Snowfall a year

56 cm

Typical Canadian town 141 cm

Frost days

a year at 0°C or below

Frost-free days

201

11 Apr to 30 Oct

A year in Semiahmoo Town Centre at a glance

Each month’s typical high and low, in °C.

Jan7°C1°CSnowiestWettest

Feb9°C0°C

Mar11°C2°C

Apr15°C5°CLast frost ~11 Apr

May19°C8°C

Jun21°C11°C

Jul25°C13°C

Aug25°C12°CWarmest

Sep22°C10°C

Oct15°C6°CFirst frost ~30 Oct

Nov now10°C2°C

Dec6°C0°CColdest nights

What stands out about Semiahmoo Town Centre’s climate

Compared with Canadian towns, with its place among towns of 2,500+ in British Columbia beside it.

Wetter than almost every Canadian townAbout 1,649 mm of rain and melted snow a year; January is the wettest month and August the driest. 10th wettest of 255 towns of 2,500+ in British Columbia.Milder than 95% of Canadian townsJanuary nights average 0.5°C; December is colder still.A narrower year than 95% of Canadian townsFrom January nights to July afternoons, the year spans 24.5°C.

A normal year

What a year in Semiahmoo Town Centre feels like

Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.

Winter

7°C / 0°C

600 mm, with 43 cm of snow: the wettest season

Spring

15°C / 5°C

373 mm of rain and snow

Summer

24°C / 12°C

153 mm of rain and snow

Autumn

15°C / 6°C

523 mm of rain and snow

−5°

0°

5°

10°

15°

20°

25°

30°

7°C1°C

9°C0°C

11°C2°C

15°C5°C

19°C8°C

21°C11°C

25°C13°C

25°C12°C

22°C10°C

15°C6°C

10°C2°C

6°C0°C

JanFebMarAprMayJunJulAugSepOctNovDec

Best months to be outsideJunJulAugSepHighs of 17–27°C and nights of 8°C or more

Frost & warm days

60 frost days and 107 days above 20°C a year

The frost season runs October to April, peaking in December at about 15 nights. Heat of 30°C or more comes on about 11 days a year.

201 frost-free days · average dates, 1991–2020

11 Apr 30 Oct

JanFebMarAprMayJunJulAugSepOctNovDec

Frost days a year (0°C or below)

Fewer frosts than 95% of Canadian towns

Days that stay below 0°C

107

Days a year above 20°C

Days a year above 30°C

Frost days by month

Average days at 0°C or below

JFMAMJJASOND

Days above 20°C by month

Average days

JFMAMJJASOND

Rain & snow

1,649 mm of precipitation in a typical year

The most falls in January, the least in August. 10th wettest of 255 towns of 2,500+ in British Columbia. On about 148 days a year, 1 mm or more falls.

1,649 mm

Rain and snow a year

Wetter than almost every Canadian town

252 mm

January, the wettest month

36 mm

August, the driest month

Rain and snow by month

Millimetres

252 mm

JFMAMJJASOND

Snow

Snowfall: about 56 cm in a normal year

From November to March snow is likely; January is the peak, at about 22 cm.

56 cm

Snowfall a year

Less snowy than 94% of Canadian towns

Days a year with 0.2 cm of snow or more

Snowfall by month

Centimetres

22 cm

JFMAMJJASOND

Pitt Meadows publishes no full year of snowfall, so these figures come from Abbotsford, 32 km away.

Heating

Heating a home in Semiahmoo Town Centre

88% of a year’s heating need falls between October and April. Months averaging under 10°C: November to April.

2,824 heating degree days (below 18°C)a year, 1991–2020

2,266 growing degree days (above 5°C)a year, 1991–2020

The count adds up, day by day, how far the mean temperature falls short of 18°C. That means homes here need less heating than 96% of Canadian towns.

Living here

Living with Semiahmoo Town Centre’s climate

The averages read for the garden, the outdoors and the coldest and hottest days.

The garden window

Count on about 201 frost-free days: the last frost averages 11 April, the first 30 October.

Get outside

The outdoor season by the averages is Jun, Jul, Aug and Sep, with highs of 17–27°C and lows of 8°C or more.

Parks & trails →

Humidex

Count on some 26 humid days a year with the humidex past 30.

Storms and extremes

What averages leave out, the floods and ice storms, is on Semiahmoo Town Centre’s hazards page.

Flood & hazards →

Weather station

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	21 km north
Station altitude	5 m
Completeness	meets the WMO “3 and 5” rule
WMO standard normals	No
Snowfall from	Abbotsford, 32 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, 32 km

Compared with other towns

How Semiahmoo Town Centre compares

Compared with 2,611 towns and neighbourhoods of 2,500 or more across Canada; the dots mark the other normals locations in British Columbia.

July afternoons25.0°C

Semiahmoo Town CentreMedian Canadian town

14°C18°C22°C26°C30°C

Cooler than 62% of Canadian towns

January nights0.5°C

Semiahmoo Town CentreMedian Canadian town

−25°C−20°C−15°C−10°C−5°C0°C5°C

Milder than 95% of Canadian towns

Rain and snow a year1,649 mm

Semiahmoo Town CentreMedian Canadian town

01,0002,0003,000

Wetter than almost every Canadian town10th wettest of 255 towns of 2,500+ in British Columbia

Snowfall a year56 cm

Semiahmoo Town CentreMedian Canadian town

0100200300400500

Less snowy than 94% of Canadian towns

Next door

Nearby towns’ climate

The nearest places on a normals location of their own: those that share Semiahmoo Town Centre’s would only repeat its figures. Semiahmoo Town Centre has few close neighbours with figures, so the list reaches 17–28 km out.

Town	July high	January low	Rain & snow
Semiahmoo Town Centre Pitt Meadows	25.0°C	0.5°C	1,649 mm
Delta 17 km · Vancouver International (Airport)	22.4°C 2.6°C cooler	1.4°C 0.9°C milder	1,160 mm
Burnaby 27 km · Vancouver (Harbour)	23.0°C 2.0°C cooler	3.3°C 2.8°C milder	1,537 mm

Month by month

Semiahmoo Town Centre weather by month

Average daily high and low, mean temperature, rain and snow (as water) and snowfall by month, 1991–2020.

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

Year to year

September: 0.9°C at its coldest, 34.4°C at its warmest

From one year to the next, February’s average typically shifts by 1.7°C around its normal of 4.6°C, the widest of any month, while October’s shifts by 1.0°C.

−20°

−10°

0°

10°

20°

30°

40°

JanFebMarAprMayJunJulAugSepOctNovDec

Record low to record high, 1991–2020Normal

Sources

Where Semiahmoo Town Centre’s numbers come from

Averages over 30 years, not a forecast.

Normals: the 1991–2020 Canadian Climate Normals at Pitt Meadows, the closest ECCC location with twelve months of temperature normals.
Other locations: ECCC blanks a month that fails its completeness rule, so the precipitation or snowfall here comes from the next location with all twelve months.
Comparisons: Canada’s towns and neighbourhoods of 2,500+ (no city totals, no reserves), each through its own nearest location.
Not on this page: sunshine, absent from every 1991–2020 location, and an altitude correction, for want of the town’s own elevation.

Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada

Questions about Semiahmoo Town Centre’s climate

How warm does Semiahmoo Town Centre get in summer?

On a normal day in August the thermometer climbs to 25.1°C, the warmest of the year.

How cold does Semiahmoo Town Centre get in winter?

Deep winter means December, when nights average 0.1°C.

How much rain and snow does Semiahmoo Town Centre get?

Rain and snow add up to about 1,649 mm of water a year; January brings the most (252 mm), August the least (36 mm).

Are these figures for Semiahmoo Town Centre itself?

The figures are ECCC’s for Pitt Meadows; Semiahmoo Town Centre has no normals station.

Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Semiahmoo Town Centre →

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).