Climate in Johnston Heights · ECCC 1991–2020 normals

Hardly any Canadian towns collect more precipitation than Johnston Heights: 1,649 mm a year

The coldest hours of a January night bottom out at 0.5°C on average. From frozen January to warm July, readings climb 25°C. By January nights alone, it runs milder than 95% of Canadian towns. Plan for rain or snow on about 148 days a year, the days with 1 mm or more.

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

Borrowed figures: Johnston Heights has no normals station, so these come from Pitt Meadows, 9.1 km east.

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

37 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 Johnston Heights at a glance

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

Jan7°C1°CWettest

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 nightsSnowiest

What stands out about Johnston Heights’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.Less snowy than 98% of Canadian townsAbout 37 cm of snow falls in a year, most of it in December.Milder than 95% of Canadian townsJanuary nights average 0.5°C; December is colder still.

A normal year

What a year in Johnston Heights feels like

Each season’s and each month’s usual high and low, 1991–2020.

Winter

7°C / 0°C

600 mm, with 31 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. About 11 days a year top 30°C.

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

About 1,649 mm of rain and snow a year

The most falls in January, the least in August. 10th wettest of 255 towns of 2,500+ in British Columbia.

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

37 cm of snow in a typical year

Expect snow from November to March, with about 14 cm in December, the snowiest month.

37 cm

Snowfall a year

Less snowy than 98% of Canadian towns

Days a year with 0.2 cm of snow or more

Snowfall by month

Centimetres

14 cm

JFMAMJJASOND

ECCC’s Pitt Meadows normals leave snowfall out; the figures here come from Vancouver International (Airport), 27 km away.

Heating

Heating a home in Johnston Heights

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

Behind the figure: the degrees each day’s mean falls under 18°C, summed for the year. By this count, homes here need less heating than 96% of Canadian towns.

Living here

Living with Johnston Heights’s climate

Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.

The garden window

The frost-free stretch runs from about 11 April to about 30 October, some 201 days in a normal year.

Get outside

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 →

Humidex

Muggy heat with a humidex over 30 arrives on about 26 days a year.

Storms and extremes

Storms, floods and heat waves sit outside these normals; Johnston Heights’s hazards page covers them.

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	9.1 km east
Station altitude	5 m
Completeness	meets the WMO “3 and 5” rule
WMO standard normals	No
Snowfall from	Vancouver International (Airport), 27 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	Vancouver (Harbour), 26 km

Compared with other towns

How Johnston Heights 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.

July afternoons25.0°C

Johnston HeightsMedian Canadian town

14°C18°C22°C26°C30°C

Cooler than 62% of Canadian towns

January nights0.5°C

Johnston HeightsMedian 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

Johnston HeightsMedian Canadian town

01,0002,0003,000

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

Snowfall a year37 cm

Johnston HeightsMedian Canadian town

0100200300400500

Less snowy than 98% of Canadian towns

Next door

Nearby towns’ climate

Nearby places read from a different ECCC location (places on Johnston Heights’s own would show the same figures). The nearest places to Johnston Heights with figures are 14–24 km away.

Town	July high	January low	Rain & snow
Johnston Heights Pitt Meadows	25.0°C	0.5°C	1,649 mm
Burnaby 14 km · Vancouver (Harbour)	23.0°C 2.0°C cooler	3.3°C 2.8°C milder	1,537 mm
Delta 16 km · Vancouver International (Airport)	22.4°C 2.6°C cooler	1.4°C 0.9°C milder	1,160 mm

Month by month

Johnston Heights 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	12 cm
February	8.8°C	0.4°C	4.6°C	134 mm	5 cm
March	11.3°C	2.3°C	6.8°C	173 mm	3 cm
April	14.9°C	4.5°C	9.7°C	105 mm	under 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	under 1 cm
November	9.6°C	2.4°C	6.0°C	249 mm	3 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	37 cm

Year to year

February strays furthest from its normal year to year, by 1.7°C; October the least

Bars run from each month’s record low to its record high since 1991. September spans the most, from 0.9°C (2000) to 34.4°C (2017).

−20°

−10°

0°

10°

20°

30°

40°

JanFebMarAprMayJunJulAugSepOctNovDec

Record low to record high, 1991–2020Normal

Sources

Where Johnston Heights’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: precipitation and snowfall come from the nearest location that publishes all twelve months of them, as named above.
Comparisons: all Canadian places of 2,500 or more except city totals and reserves, each read the same way.
Not on this page: sunshine, which none of ECCC’s 450 locations publishes for 1991–2020, and the town’s own height above sea level, so no figure is adjusted for altitude.

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

Questions about Johnston Heights’s climate

How warm does Johnston Heights get in summer?

The year’s warmest days come in August, with highs averaging 25.1°C.

How cold does Johnston Heights get in winter?

At its coldest, in December, the normal low is 0.1°C.

How much rain and snow does Johnston Heights get?

Count on roughly 1,649 mm a year, heaviest in January (252 mm) and lightest in August (36 mm).

Are these figures for Johnston Heights itself?

Not directly: Johnston Heights has no ECCC normals of its own, and Pitt Meadows stands in for it.

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

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).