Bolton Weather in May
Bolton in May
The short of it: Bolton in May averages a high of 18 °C (64 °F) and a low of 6 °C (42 °F), with 80 mm (3.1 in) of rain and about 14 h 43 min of daylight. Rated 3 of 5 for a visit; the best months are September and June. Source: TerraClimate climate normals, 1991–2020.
Average high 18° · low 6° · rain 80 mm · daylight 14 h 43 min
✦✦✦ Fair for a visit · best months: September & June
Thirty years of records give Bolton an average May high of 18°, a low of 6° and some 80 mm of rain. Spring takes hold here: highs climb 8° from April to about 18°, with nights near 6°. Wet spells are common — about 80 mm, the 2nd wettest month. The snow cover usually melts away this month.
The sun is up for about 14 h 43 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 September and June.
Against its neighbours, Bolton runs cooler than most and drier than most in May. Mount Olive-Silverstone-Jamestown, 19 km to the SE, is 1° warmer by day.
May in Bolton, by the numbers
- Warmth rank
- 5th warmest of 12
- Rain rank
- 2nd wettest of 12
- Versus April
- 8° warmer, 6.0 mm more rain
- Versus June
- 5° colder
- Day–night spread
- 12°
- Snow season
- Nov–Apr
- Daylight, mid-month
- 14 h 43 min
- Average wind
- 14 km/h
Neighbouring Towns
May averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| Mount Olive-Silverstone-JamestownOntario | 19 km SE | 19° | 8° | 77 mm |
| VaughanOntario | 20 km ESE | 18° | 7° | 81 mm |
| CaledonOntario | 21 km W | 17° | 6° | 90 mm |
| West Humber-ClairvilleOntario | 21 km SSE | 19° | 8° | 77 mm |
| BramptonOntario | 22 km S | 19° | 7° | 84 mm |
| Glenfield-Jane HeightsOntario | 23 km SE | 19° | 8° | 77 mm |
| York University HeightsOntario | 24 km ESE | 18° | 8° | 80 mm |
| Richmond HillOntario | 24 km E | 18° | 8° | 81 mm |