Chatham Weather in December
Chatham in December
The short of it: Chatham in December averages a high of 3 °C (37 °F) and a low of -3 °C (26 °F), with 65 mm (2.6 in) of rain and about 9 h 5 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 3° · low -3° · rain 65 mm · daylight 9 h 5 min
✦✦ Travel with care for a visit · best months: September & June
Thirty years of records give Chatham an average December high of 3°, a low of -3° and some 65 mm of rain. The year turns hard here: highs drop 6° from November to about 3°, with nights near -3°. Wet spells are common — about 65 mm, the 9th wettest month. The first lasting snow usually comes now.
The sun is up for about 9 h 5 min in mid-December, 37 minutes less than a month before.
For the traveller: pack a heavy coat, gloves and a scarf, and an oilskin besides. The Almanac rates December 2 of 5 for a visit; the finest months here are September and June.
Against its neighbours, Chatham runs warmer than most and about as wet in December. Ridgetown, 25 km to the E, sees much the same highs.
December in Chatham, by the numbers
- Warmth rank
- 10th warmest of 12
- Rain rank
- 9th wettest of 12
- Versus November
- 6° colder, 5.0 mm less rain
- Versus January
- 3° warmer
- Day–night spread
- 6°
- Snow season
- Dec–Mar
- Daylight, mid-month
- 9 h 5 min
- Average wind
- 18 km/h
Neighbouring Towns
December averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| RidgetownOntario | 25 km E | 2° | -4° | 73 mm |
| TilburyOntario | 26 km SW | 3° | -3° | 66 mm |
| WallaceburgOntario | 26 km NW | 2° | -4° | 63 mm |
| AlgonacMichigan | 37 km NW | 3° | -3° | 62 mm |
| Pearl BeachMichigan | 41 km NW | 3° | -4° | 60 mm |
| Marine CityMichigan | 42 km NW | 3° | -4° | 60 mm |
| Belle RiverOntario | 45 km WSW | 3° | -4° | 66 mm |
| Saint ClairMichigan | 52 km NNW | 3° | -4° | 59 mm |