Harriston Weather in May
Harriston in May
The short of it: Harriston in May averages a high of 18 °C (64 °F) and a low of 6 °C (43 °F), with 100 mm (3.9 in) of rain and about 14 h 43 min of daylight. Rated 3 of 5 for a visit; the best months are June and August. Source: TerraClimate climate normals, 1991–2020.
Average high 18° · low 6° · rain 100 mm · daylight 14 h 43 min
✦✦✦ Fair for a visit · best months: June & August
Thirty years of records give Harriston an average May high of 18°, a low of 6° and some 100 mm of rain. Spring takes hold here: highs climb 8° from April to about 18°, with nights near 6°. Wet spells are common — about 100 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 June and August.
Against its neighbours, Harriston runs cooler than most and wetter than most in May. Listowel, 21 km to the SSW, sees much the same highs.
May in Harriston, by the numbers
- Warmth rank
- 5th warmest of 12
- Rain rank
- 2nd wettest of 12
- Versus April
- 8° warmer, 15 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 |
|---|---|---|---|---|
| ListowelOntario | 21 km SSW | 18° | 6° | 98 mm |
| North PerthOntario | 22 km SSW | 18° | 7° | 98 mm |
| HanoverOntario | 29 km NNW | 18° | 6° | 97 mm |
| ElmiraOntario | 43 km SE | 18° | 7° | 96 mm |
| EloraOntario | 43 km SE | 18° | 6° | 92 mm |
| FergusOntario | 46 km ESE | 18° | 6° | 92 mm |
| Huron EastOntario | 48 km SW | 18° | 7° | 100 mm |
| Columbia HillsOntario | 54 km SSE | 18° | 7° | 97 mm |