Chatham Weather in May
Chatham in May
The short of it: Chatham in May averages a high of 20 °C (67 °F) and a low of 9 °C (48 °F), with 84 mm (3.3 in) of rain and about 14 h 35 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 20° · low 9° · rain 84 mm · daylight 14 h 35 min
✦✦✦ Fair for a visit · best months: September & June
May in Chatham brings afternoons near 20° and nights around 9°, with about 84 mm of rain over the month. Spring takes hold here: highs climb 7° from April to about 20°, with nights near 9°. Wet spells are common — about 84 mm, the 2nd wettest month.
The sun is up for about 14 h 35 min in mid-May, 76 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, Chatham runs warmer than most and wetter than most in May. Ridgetown, 25 km to the E, is 1° cooler by day.
May in Chatham, by the numbers
- Warmth rank
- 5th warmest of 12
- Rain rank
- 2nd wettest of 12
- Versus April
- 7° warmer, 5.0 mm more rain
- Versus June
- 6° colder
- Day–night spread
- 11°
- Snow season
- Dec–Mar
- Daylight, mid-month
- 14 h 35 min
- Average wind
- 14 km/h
Neighbouring Towns
May averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| RidgetownOntario | 25 km E | 19° | 8° | 85 mm |
| TilburyOntario | 26 km SW | 20° | 9° | 81 mm |
| WallaceburgOntario | 26 km NW | 20° | 8° | 79 mm |
| AlgonacMichigan | 37 km NW | 19° | 8° | 80 mm |
| Pearl BeachMichigan | 41 km NW | 19° | 8° | 81 mm |
| Marine CityMichigan | 42 km NW | 19° | 8° | 82 mm |
| Belle RiverOntario | 45 km WSW | 20° | 9° | 82 mm |
| Saint ClairMichigan | 52 km NNW | 19° | 8° | 83 mm |