St. Thomas Weather in July
St. Thomas in July
The short of it: St. Thomas in July averages a high of 26 °C (80 °F) and a low of 16 °C (60 °F), with 80 mm (3.1 in) of rain and about 15 h 2 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 26° · low 16° · rain 80 mm · daylight 15 h 2 min
✦✦✦ Fair for a visit · best months: September & June
July in St. Thomas brings afternoons near 26° and nights around 16°, with about 80 mm of rain over the month. No month in St. Thomas runs warmer: highs about 26°. Wet spells are common — about 80 mm, the 8th wettest month.
The sun is up for about 15 h 2 min in mid-July, 17 minutes less than a month before.
For the traveller: pack light clothes and a jacket for the evening, and an oilskin besides. The Almanac rates July 3 of 5 for a visit; the finest months here are September and June.
Against its neighbours, St. Thomas runs cooler than most and drier than most in July. Aylmer, 16 km to the E, sees much the same highs.
July in St. Thomas, by the numbers
- Warmth rank
- 1st warmest of 12
- Rain rank
- 8th wettest of 12
- Versus June
- 2° warmer, 12 mm less rain
- Versus August
- 1° warmer
- Day–night spread
- 11°
- Snow season
- Dec–Mar
- Daylight, mid-month
- 15 h 2 min
- Average wind
- 10 km/h
Neighbouring Towns
July averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| AylmerOntario | 16 km E | 27° | 16° | 82 mm |
| LondonOntario | 24 km N | 27° | 16° | 81 mm |
| DorchesterOntario | 25 km NNE | 26° | 15° | 83 mm |
| IngersollOntario | 38 km NE | 26° | 15° | 87 mm |
| TillsonburgOntario | 38 km ENE | 27° | 16° | 85 mm |
| StrathroyOntario | 41 km WNW | 27° | 16° | 75 mm |
| St. MarysOntario | 53 km N | 26° | 15° | 82 mm |
| WoodstockOntario | 53 km NE | 27° | 15° | 91 mm |