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

Thorold in May

The short of it: Thorold in May averages a high of 19 °C (66 °F) and a low of 8 °C (47 °F), with 87 mm (3.4 in) of rain and about 14 h 39 min of daylight. Rated 3 of 5 for a visit; the best months are June and September. Source: TerraClimate climate normals, 1991–2020.

Average high 19° · low 8° · rain 87 mm · daylight 14 h 39 min

✦✦✦ Fair for a visit · best months: June & September

Thirty years of records give Thorold an average May high of 19°, a low of 8° and some 87 mm of rain. Spring takes hold here: highs climb 7° from April to about 19°, with nights near 8°. It is the wettest month of the year here, about 87 mm.

The sun is up for about 14 h 39 min in mid-May, 78 minutes more than a month before.

For the traveller: pack layers, a wool coat and stout boots, and an oilskin besides. The Almanac rates May 3 of 5 for a visit; the finest months here are June and September.

Against its neighbours, Thorold runs cooler than most and wetter than most in May. St. Catharines, 7 km to the NNW, sees much the same highs.

May in Thorold, by the numbers

Warmth rank
5th warmest of 12
Rain rank
1st wettest of 12
Versus April
7° warmer, 4.0 mm more rain
Versus June
5° colder
Day–night spread
11°
Snow season
Dec–Mar
Daylight, mid-month
14 h 39 min
Average wind
14 km/h

Neighbouring Towns

May averages · distance by the crow’s flight
TownDistanceHighLowRain
St. CatharinesOntario7 km NNW19°9°82 mm
Niagara FallsOntario11 km E19°9°87 mm
Niagara FallsNew York12 km ESE19°9°87 mm
WellandOntario15 km SSW19°8°89 mm
North TonawandaNew York29 km ESE19°9°84 mm
GrimsbyOntario31 km WNW18°8°79 mm
Fort ErieOntario32 km SE19°8°84 mm
AmherstNew York36 km ESE20°9°86 mm

The Almanac · Thorold Month by Month

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

Spring takes hold here: highs climb 7° from April to about 19°, with nights near 8°. It is the wettest month of the year here, about 87 mm.

Climate of Thorold by month
MonthHighLowRainWindDaylightVisit
January0°-7°69 mm19 km/h9 h 20 min✦
February0°-7°56 mm18 km/h10 h 27 min✦
March5°-3°56 mm17 km/h11 h 48 min✦✦
April12°2°83 mm17 km/h13 h 21 min✦✦
May19°8°87 mm14 km/h14 h 39 min✦✦✦
June24°14°85 mm12 km/h15 h 21 min✦✦✦
July27°17°83 mm12 km/h15 h 4 min✦✦✦
August26°17°75 mm11 km/h13 h 56 min✦✦✦
September22°13°78 mm12 km/h12 h 26 min✦✦✦
October15°7°84 mm14 km/h10 h 57 min✦✦
November8°1°80 mm17 km/h9 h 38 min✦
December3°-4°74 mm18 km/h9 h 0 min✦

Questions Readers Ask about Thorold in May

Answered from the wire & the Almanac

What is the weather like in Thorold in May?

Days average 19 °C (66 °F) and nights 8 °C (47 °F), with about 87 mm (3.4 in) of rain over the month. Spring takes hold here: highs climb 7° from April to about 19°, with nights near 8°. It is the wettest month of the year here, about 87 mm.

Is May a good time to visit Thorold?

The Almanac gives May 3 of 5 (fair). The best months are June and September.

How long are the days in Thorold in May?

In mid-May the sun is up for about 14 h 39 min. The days are lengthening — from 9 h 0 min in December to 15 h 21 min in June.

Does it snow in Thorold in May?

Hardly — May nights average 8 °C (47 °F), above freezing.

What should I pack for Thorold in May?

Layers, a warm coat and stout boots, 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