Thermograph

How unusual is the weather? Graded against ~45 years of local climate history.

Weather in Longueuil in December

In an average December, Longueuil sees a daily high around -2°C and a low around -9°C, based on 1980–2026 of local climate records.

Average high-2°C
Typical high range-10°C to 5°C
Average low-9°C
Typical low range-20°C to 0°C
Average daily precipitation3 mm

December records

The most extreme December on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total December accumulation.

High

Highest 16°C 2015-12-24
Lowest -25°C 1993-12-27

Low

Highest 10°C 2001-12-06
Lowest -32°C 1989-12-30

Feels-like

Highest 6°C 2001-12-06
Lowest -46°C 1993-12-27

Humidity

Highest 8.6 g/m³ 2020-12-01
Lowest 0.3 g/m³ 1993-12-27

Wind

Highest 46 km/h 2000-12-18
Lowest 6 km/h 1985-12-11

Gust

Highest 99 km/h 2025-12-19
Lowest 9 km/h 1999-12-04

Precip

Wettest 163 mm 1983
Driest 33 mm 2002

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