Climate averages 1991–2020

Gloucester, Canada weather
in December.

A freezing month with moderate precipitation: the 10th warmest and the 4th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high -1.3°C Daytime mean, December
Average low -8.5°C Night-time mean, December
Precipitation 76 mm 12 days with ≥1 mm
Daylight 9 h Sunrise to sunset, per day
Every month in Gloucester · average highYear overview

December is a freezing month in Gloucester, Canada: daytime highs average -1.3°C and nights cool to about -8.5°C. By daytime temperature it is the 10th warmest of the 12 months.

Expect about 76 mm of precipitation on roughly 12 days, which makes December a month with moderate precipitation (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 8 h 48 min on an average December day.

The nearest other city in this atlas is Nepean (7 km away). In December its highs average -1.1°C, about as warm as Gloucester, Canada, with 76 mm of precipitation.

Among the 86 cities listed in Canada, Gloucester, Canada ranks joint 60th of 86 for the warmest December highs and joint 44th of 86 for the driest December (precipitation, lowest first). The mean December high of those 86 cities is 0.2°C; Gloucester, Canada is 1.5°C cooler than that mean.

From December to January, average highs fall by 3.8°C to -5.1°C, and monthly precipitation falls from 76 mm to 70 mm.

The annual picture

December in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. -20-15-10-5051015202530 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly precipitation

Average total · mm
Average monthly precipitation totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1000

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Gloucester, Canada climate table

1991–2020
Monthly climate averages for Gloucester, Canada, 1991–2020
MonthAverage highHigh / lowAverage lowPrecipitation mm/monthWet days ≥1 mm/dayDaylight hours/dayDay­light h/day
January -5.1°C-14.7°C-14.7°C7010.49.29 h
February -3.3°C-13.4°C-13.4°C578.910.410 h
March 2.5°C-7.4°C-7.4°C7110.211.912 h
April 10.6°C0.4°C0.4°C9211.313.513 h
May 18.4°C7.8°C7.8°C8511.314.915 h
June 23.2°C13.3°C13.3°C9511.315.616 h
July 25.6°C16.3°C16.3°C9411.715.315 h
August 24.5°C15.7°C15.7°C8610.814.114 h
September 20.3°C11.8°C11.8°C909.912.613 h
October 12.6°C5.4°C5.4°C9711.711.011 h
November 5.3°C-1.1°C-1.1°C8011.19.610 h
December, selected -1.3°C-8.5°C-8.5°C7611.58.89 h

Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

December in nearby cities

Distance from Gloucester

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Gloucester) is explained once on the Gloucester, Canada year overview and on the Sources, method and limits page.

Nepean lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.