December Weather in Monson, United States

Last updated: June 24, 2025

In December, the average temperature in Monson, United States hovers around -6°C (22°F). Expect chilly days, with temperatures dipping as low as -25°C (-13°F) and peaking at a comfortable 14°C (58°F). The weather brings about 119 mm (4.7 in) of precipitation over approximately 11 days, contributing to an average humidity of 84%. Bundle up and be prepared for a mix of conditions!

December Temperature in Monson

In December in Monson, the average temperature is -6°C (22°F), with maximums reaching 14°C (58°F) and minimums dropping as low as -25°C (-13°F). Be prepared for a wide range of temperatures when traveling to Monson during this time.

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

The chart illustrates December temperature patterns in Monson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Monson, December typically has an average temperature of -6°C (22°F), with highs reaching up to 14°C (58°F) and lows dropping to around -25°C (-13°F).

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

December Precipitation in Monson

In Monson in December, the total precipitation amount is 119 mm (4.7 in), which occurs over the course of 11 days.

December Precipitation Trends in Monson

The chart displays monthly precipitation patterns in Monson, 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 Monson, December typically receives around 119 mm (4.7 inches) of precipitation spread over approximately 11 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 Monson

In Monson in December humidity is 84%. With an average temperature of -6°C (22°F), this humidity feels like an unpleasant chill that seeps into your bones, making travel feel much more uncomfortable and harsh than the temperature alone suggests.

December Average Humidity in Monson

This chart illustrates the average monthly humidity levels in Monson, 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 Monson 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 Monson

In Monson 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 Monson, you can visit Hourly UV Index in Monson.

Maximum UV Index Levels in Monson for December

The chart shows the monthly maximum UV Index (UVI) for Monson 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 Monson typically reaches 2, which falls under the low exposure category.

Data source: Monson 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 Monson Compares to Other Months

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

This table compares monthly weather conditions in Monson, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (17°F)	90 mm (3.5 inches)	88%	low
February Weather	-7°C (19°F)	85 mm (3.3 inches)	88%	moderate
March Weather	-3°C (27°F)	77 mm (3.0 inches)	85%	moderate
April Weather	4°C (39°F)	126 mm (4.9 inches)	81%	very high
May Weather	11°C (53°F)	98 mm (3.9 inches)	76%	very high
June Weather	17°C (63°F)	91 mm (3.6 inches)	74%	very high
July Weather	20°C (68°F)	105 mm (4.1 inches)	74%	very high
August Weather	19°C (67°F)	91 mm (3.6 inches)	74%	very high
September Weather	15°C (59°F)	81 mm (3.2 inches)	77%	high
October Weather	8°C (47°F)	135 mm (5.3 inches)	82%	moderate
November Weather	0°C (33°F)	115 mm (4.5 inches)	85%	moderate
December Weather	-6°C (22°F)	119 mm (4.7 inches)	84%	low