The Frontier Gazette & Almanack
“Fair Warning for Every Town Under the Sky” · Est. 1881
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Chilliwack Weather in May

Chilliwack in May

The short of it: Chilliwack in May averages a high of 20 °C (68 °F) and a low of 10 °C (50 °F), with 88 mm (3.5 in) of rain and about 15 h 17 min of daylight. Rated 3 of 5 for a visit; the best months are July and August. Source: TerraClimate climate normals, 1991–2020.

Average high 20° · low 10° · rain 88 mm · daylight 15 h 17 min

✦✦✦ Fair for a visit · best months: July & August

May in Chilliwack brings afternoons near 20° and nights around 10°, with about 88 mm of rain over the month. Highs rise 4° against April, to near 20°; nights run about 10°. Wet spells are common — about 88 mm, the 8th wettest month.

The sun is up for about 15 h 17 min in mid-May, 98 minutes more than a month before.

For the traveller: pack light clothes and a jacket for the evening, and an oilskin besides. The Almanac rates May 3 of 5 for a visit; the finest months here are July and August.

Against its neighbours, Chilliwack runs warmer than most and wetter than most in May. Chilliwack-Downtown, 1 km to the WSW, is 1° cooler by day.

May in Chilliwack, by the numbers

Warmth rank
5th warmest of 12
Rain rank
8th wettest of 12
Versus April
4° warmer, 30 mm less rain
Versus June
2° colder
Day–night spread
10°
Snow season
Dec–Jan
Daylight, mid-month
15 h 17 min
Average wind
10 km/h

Neighbouring Towns

May averages · distance by the crow’s flight
TownDistanceHighLowRain
Chilliwack-DowntownBritish Columbia1 km WSW20°10°89 mm
PromontoryBritish Columbia7 km S19°9°88 mm
Vedder CrossingBritish Columbia7 km S19°9°87 mm
AbbotsfordBritish Columbia25 km WSW19°9°88 mm
ClayburnBritish Columbia25 km WSW19°9°88 mm
MissionBritish Columbia26 km W18°9°102 mm
TownlineBritish Columbia32 km WSW19°8°91 mm
AldergroveBritish Columbia40 km WSW18°8°92 mm

The Almanac · Chilliwack Month by Month

Climate normals 1991–2020 · pick a month
PrecipitationAverage highAverage low
Fair
The Almanac Speaks
May
✦✦✦✦✦

Highs rise 4° against April, to near 20°; nights run about 10°. Wet spells are common — about 88 mm, the 8th wettest month.

Climate of Chilliwack by month
MonthHighLowRainWindDaylightVisit
January6°1°242 mm11 km/h8 h 38 min✦
February9°1°118 mm11 km/h10 h 4 min✦
March12°3°163 mm12 km/h11 h 44 min✦✦
April16°6°118 mm11 km/h13 h 39 min✦✦✦
May20°10°88 mm10 km/h15 h 17 min✦✦✦
June22°12°79 mm10 km/h16 h 12 min✦✦✦
July25°14°46 mm10 km/h15 h 49 min✦✦✦✦
August26°14°52 mm9 km/h14 h 23 min✦✦✦✦
September22°11°74 mm8 km/h12 h 31 min✦✦✦
October15°7°182 mm9 km/h10 h 40 min✦✦
November10°4°283 mm10 km/h9 h 2 min✦
December6°1°192 mm11 km/h8 h 13 min✦

Questions Readers Ask about Chilliwack in May

Answered from the wire & the Almanac

What is the weather like in Chilliwack in May?

Days average 20 °C (68 °F) and nights 10 °C (50 °F), with about 88 mm (3.5 in) of rain over the month. Highs rise 4° against April, to near 20°; nights run about 10°. Wet spells are common — about 88 mm, the 8th wettest month.

Is May a good time to visit Chilliwack?

The Almanac gives May 3 of 5 (fair). The best months are July and August.

How long are the days in Chilliwack in May?

In mid-May the sun is up for about 15 h 17 min. The days are lengthening — from 8 h 13 min in December to 16 h 12 min in June.

Does it snow in Chilliwack in May?

Hardly — May nights average 10 °C (50 °F), above freezing.

What should I pack for Chilliwack in May?

Light clothes and a jacket for the evening, plus a good raincoat — it is a wet month.

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The Editor’s Remark

“Weather is the only news that never grows stale. Each morning the sky writes its own front page, and we at Wanted Weather are but its telegraph operators.”— J. Whitmore, Editor