St. Thomas Weather in March
St. Thomas in March
The short of it: St. Thomas in March averages a high of 5 °C (41 °F) and a low of -3 °C (26 °F), with 66 mm (2.6 in) of rain and about 11 h 48 min of daylight. Rated 2 of 5 for a visit; the best months are September and June. Source: TerraClimate climate normals, 1991–2020.
Average high 5° · low -3° · rain 66 mm · daylight 11 h 48 min
✦✦ Travel with care for a visit · best months: September & June
March in St. Thomas brings afternoons near 5° and nights around -3°, with about 66 mm of rain over the month. Highs rise 5° against February, to near 5°; nights run about -3°. Wet spells are common — about 66 mm, the 11th wettest month. Snow lies on the ground; mind the passes.
The sun is up for about 11 h 48 min in mid-March, 80 minutes more than a month before.
For the traveller: pack a heavy coat, gloves and a scarf, and an oilskin besides. The Almanac rates March 2 of 5 for a visit; the finest months here are September and June.
Against its neighbours, St. Thomas runs warmer than most and drier than most in March. Aylmer, 16 km to the E, sees much the same highs.
March in St. Thomas, by the numbers
- Warmth rank
- 9th warmest of 12
- Rain rank
- 11th wettest of 12
- Versus February
- 5° warmer, 0.0 mm more rain
- Versus April
- 7° colder
- Day–night spread
- 8°
- Snow season
- Dec–Mar
- Daylight, mid-month
- 11 h 48 min
- Average wind
- 15 km/h
Neighbouring Towns
March averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| AylmerOntario | 16 km E | 5° | -3° | 68 mm |
| LondonOntario | 24 km N | 5° | -3° | 71 mm |
| DorchesterOntario | 25 km NNE | 4° | -4° | 69 mm |
| IngersollOntario | 38 km NE | 4° | -4° | 68 mm |
| TillsonburgOntario | 38 km ENE | 5° | -4° | 70 mm |
| StrathroyOntario | 41 km WNW | 4° | -4° | 64 mm |
| St. MarysOntario | 53 km N | 3° | -5° | 70 mm |
| WoodstockOntario | 53 km NE | 4° | -4° | 63 mm |