December Weather in Brooklin, United States

Last updated: June 24, 2025

In December, the average temperature in Brooklin, United States hovers around 1°C (34°F). Expect some chilly days, with minimum temperatures plunging to -16°C (4°F), while highs can reach up to 13°C (56°F). During this month, anticipate around 153 mm (6.0 in) of precipitation over about 12 days, contributing to an average humidity of a cozy 84%.

December Temperature in Brooklin

In December in Brooklin, the average temperature is 1°C (34°F), with maximums reaching up to 13°C (56°F) and minimums plunging as low as -16°C (4°F). Be prepared for a wide range of weather if you plan to travel during this month!

December Weather in Brooklin: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Brooklin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Brooklin, December typically has an average temperature of 1°C (34°F), with highs reaching up to 13°C (56°F) and lows dropping to around -16°C (4°F).

Data source: Temperature data for Brooklin generated using information from the Copernicus Climate Change Service.

December Precipitation in Brooklin

In Brooklin in December, the total precipitation amount is 153 mm (6.0 in), occurring over the course of 12 days.

December Precipitation Trends in Brooklin

The chart displays monthly precipitation patterns in Brooklin, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Brooklin, December typically receives around 153 mm (6.0 inches) of precipitation spread over approximately 12 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Brooklin

In Brooklin in December humidity is 84%. With an average temperature of 1°C (34°F), this humidity feels like a biting chill that seeps into your bones, making travel uncomfortable and requiring extra layers to keep warm while navigating the damp air.

December Average Humidity in Brooklin

This chart illustrates the average monthly humidity levels in Brooklin, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Brooklin is approximately 84%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Brooklin

In Brooklin in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Brooklin, you can visit Hourly UV Index in Brooklin.

Maximum UV Index Levels in Brooklin for December

The chart shows the monthly maximum UV Index (UVI) for Brooklin in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Brooklin typically reaches 2, which falls under the low exposure category.

Data source: Brooklin December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How December Weather in Brooklin Compares to Other Months

Weather in Brooklin varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Brooklin, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Brooklin, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (30°F)	109 mm (4.3 inches)	88%	low
February Weather	-1°C (30°F)	104 mm (4.1 inches)	88%	moderate
March Weather	1°C (33°F)	82 mm (3.2 inches)	85%	moderate
April Weather	5°C (41°F)	148 mm (5.8 inches)	81%	high
May Weather	9°C (48°F)	102 mm (4.0 inches)	76%	very high
June Weather	13°C (55°F)	90 mm (3.5 inches)	74%	very high
July Weather	16°C (60°F)	86 mm (3.4 inches)	74%	very high
August Weather	17°C (63°F)	85 mm (3.3 inches)	74%	very high
September Weather	15°C (60°F)	104 mm (4.1 inches)	77%	high
October Weather	12°C (54°F)	128 mm (5.1 inches)	82%	moderate
November Weather	6°C (44°F)	137 mm (5.4 inches)	85%	moderate
December Weather	1°C (34°F)	153 mm (6.0 inches)	84%	low