Niagara Weather in May
Niagara in May
The short of it: Niagara in May averages a high of 18 °C (65 °F) and a low of 9 °C (48 °F), with 79 mm (3.1 in) of rain and about 14 h 42 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 18° · low 9° · rain 79 mm · daylight 14 h 42 min
✦✦✦ Fair for a visit · best months: June & September
Thirty years of records give Niagara an average May high of 18°, a low of 9° and some 79 mm of rain. Spring takes hold here: highs climb 7° from April to about 18°, with nights near 9°. Wet spells are common — about 79 mm, the 2nd wettest month.
The sun is up for about 14 h 42 min in mid-May, 80 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, Niagara runs warmer than most and wetter than most in May. Waterfront Communities-The Island, 3 km to the ESE, sees much the same highs.
May in Niagara, by the numbers
- Warmth rank
- 5th warmest of 12
- Rain rank
- 2nd wettest of 12
- Versus April
- 7° warmer, 4.0 mm less rain
- Versus June
- 6° colder
- Day–night spread
- 10°
- Snow season
- Dec–Mar
- Daylight, mid-month
- 14 h 42 min
- Average wind
- 13 km/h
Neighbouring Towns
May averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| Waterfront Communities-The IslandOntario | 3 km ESE | 18° | 9° | 79 mm |
| Church-Yonge CorridorOntario | 3 km NE | 18° | 9° | 79 mm |
| AnnexOntario | 3 km N | 19° | 9° | 80 mm |
| Dovercourt-Wallace Emerson-JunctionOntario | 3 km NW | 18° | 9° | 78 mm |
| South RiverdaleOntario | 6 km E | 18° | 9° | 78 mm |
| Mount Pleasant WestOntario | 7 km N | 19° | 9° | 80 mm |
| TorontoOntario | 7 km N | 19° | 9° | 80 mm |
| MimicoOntario | 9 km WSW | 18° | 8° | 79 mm |