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

Sion Weather in July

Sion in July

The short of it: Sion in July averages a high of 29 °C (85 °F) and a low of 12 °C (53 °F), with 24 mm (0.94 in) of rain and about 15 h 48 min of daylight. Rated 4 of 5 for a visit; the best months are September and April. Source: TerraClimate climate normals, 1991–2020.

Average high 29° · low 12° · rain 24 mm · daylight 15 h 48 min

✦✦✦✦ Recommended for a visit · best months: September & April

Thirty years of records give Sion an average July high of 29°, a low of 12° and some 24 mm of rain. Highs rise 5° against June, to near 29°; nights run about 12°. Rain is modest, about 24 mm, the 10th wettest month.

The sun is up for about 15 h 48 min in mid-July, 22 minutes less than a month before.

For the traveller: pack linen, a wide hat and water. The Almanac rates July 4 of 5 for a visit; the finest months here are September and April.

Against its neighbours, Sion runs warmer than most and wetter than most in July. Grand Forks, 4 km to the ENE, is 1° warmer by day.

July in Sion, by the numbers

Warmth rank
2nd warmest of 12
Rain rank
10th wettest of 12
Versus June
5° warmer, 31 mm less rain
Versus August
about the same
Day–night spread
18°
Snow season
Nov–Mar
Daylight, mid-month
15 h 48 min
Average wind
9 km/h

Neighbouring Towns

July averages · distance by the crow’s flight
TownDistanceHighLowRain
Grand ForksBritish Columbia4 km ENE30°12°24 mm
GreenwoodBritish Columbia17 km WNW27°10°26 mm
MidwayBritish Columbia20 km W29°11°24 mm
Christina LakeBritish Columbia21 km E29°12°24 mm
RepublicWashington45 km SSW28°10°20 mm
RosslandBritish Columbia51 km E26°10°28 mm
WarfieldBritish Columbia55 km E29°12°29 mm
Kettle FallsWashington55 km SE30°12°21 mm

The Almanac · Sion Month by Month

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

Highs rise 5° against June, to near 29°; nights run about 12°. Rain is modest, about 24 mm, the 10th wettest month.

Climate of Sion by month
MonthHighLowRainWindDaylightVisit
January0°-7°50 mm8 km/h8 h 39 min✦
February4°-5°28 mm8 km/h10 h 5 min✦✦
March10°-2°37 mm9 km/h11 h 44 min✦✦✦✦
April16°2°40 mm10 km/h13 h 39 min✦✦✦✦✦
May21°6°50 mm10 km/h15 h 16 min✦✦✦✦
June24°9°55 mm9 km/h16 h 11 min✦✦✦✦
July29°12°24 mm9 km/h15 h 48 min✦✦✦✦
August30°11°21 mm9 km/h14 h 22 min✦✦✦✦
September24°7°24 mm8 km/h12 h 31 min✦✦✦✦✦
October14°2°35 mm8 km/h10 h 41 min✦✦✦✦
November6°0°49 mm9 km/h9 h 3 min✦✦
December0°-5°53 mm8 km/h8 h 15 min✦

Questions Readers Ask about Sion in July

Answered from the wire & the Almanac

What is the weather like in Sion in July?

Days average 29 °C (85 °F) and nights 12 °C (53 °F), with about 24 mm (0.94 in) of rain over the month. Highs rise 5° against June, to near 29°; nights run about 12°. Rain is modest, about 24 mm, the 10th wettest month.

Is July a good time to visit Sion?

The Almanac gives July 4 of 5 (recommended). The best months are September and April.

How long are the days in Sion in July?

In mid-July the sun is up for about 15 h 48 min. The days are shortening — from 8 h 15 min in December to 16 h 11 min in June.

Does it snow in Sion in July?

Hardly — July nights average 12 °C (53 °F), above freezing.

What should I pack for Sion in July?

Linen, a wide hat, sun cream and water.

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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
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