Aylmer Weather in May
Aylmer in May
The short of it: Aylmer in May averages a high of 19 °C (66 °F) and a low of 8 °C (46 °F), with 90 mm (3.5 in) of rain and about 14 h 37 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 19° · low 8° · rain 90 mm · daylight 14 h 37 min
✦✦✦ Fair for a visit · best months: September & June
Thirty years of records give Aylmer an average May high of 19°, a low of 8° and some 90 mm of rain. Highs rise 7° against April, to near 19°; nights run about 8°. Wet spells are common — about 90 mm, the 2nd wettest month.
The sun is up for about 14 h 37 min in mid-May, 77 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, Aylmer runs about middling and drier than most in May. St. Thomas, 16 km to the W, sees much the same highs.
May in Aylmer, by the numbers
- Warmth rank
- 5th warmest of 12
- Rain rank
- 2nd wettest of 12
- Versus April
- 7° warmer, 1.0 mm more rain
- Versus June
- 5° colder
- Day–night spread
- 11°
- Snow season
- Dec–Mar
- Daylight, mid-month
- 14 h 37 min
- Average wind
- 13 km/h
Neighbouring Towns
May averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| St. ThomasOntario | 16 km W | 19° | 8° | 92 mm |
| TillsonburgOntario | 23 km ENE | 19° | 8° | 89 mm |
| DorchesterOntario | 25 km NNW | 19° | 8° | 93 mm |
| IngersollOntario | 31 km NNE | 19° | 8° | 95 mm |
| LondonOntario | 32 km NW | 20° | 9° | 93 mm |
| DelhiOntario | 41 km ENE | 19° | 8° | 83 mm |
| WoodstockOntario | 45 km NNE | 19° | 8° | 97 mm |
| Norfolk CountyOntario | 50 km E | 19° | 8° | 81 mm |