December Weather in Webster, United States

Last updated: June 24, 2025

In December, the average temperature in Webster, United States hovers around -5°C (23°F). While chilly, be prepared for a potential drop to a bone-chilling -28°C (-18°F), or a rare rise to a milder 13°C (55°F). With 34 mm (1.3 in) of precipitation over about 6 days, and an average humidity of 81%, it’s wise to bundle up and be ready for damp conditions!

December Temperature in Webster

In December in Webster, the average temperature is -5°C (23°F). Maximums can reach 13°C (55°F) and minimums can be as low as -28°C (-18°F). Be prepared for a wide range of temperatures when planning your trip, and pack accordingly to stay comfortable during your travels.

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

The chart illustrates December temperature patterns in Webster, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Webster, December typically has an average temperature of -5°C (23°F), with highs reaching up to 13°C (55°F) and lows dropping to around -28°C (-18°F).

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

December Precipitation in Webster

In Webster in December, the total precipitation amount is 34 mm (1.3 in) spread over 6 days.

December Precipitation Trends in Webster

The chart displays monthly precipitation patterns in Webster, 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 Webster, December typically receives around 34 mm (1.3 inches) of precipitation spread over approximately 6 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 Webster

In Webster in December, humidity is 81%. With an average temperature of -5°C (23°F), this humidity feels like a biting chill that penetrates deep into your bones, making outdoor activities uncomfortable and travel a challenge.

December Average Humidity in Webster

This chart illustrates the average monthly humidity levels in Webster, 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 Webster is approximately 81%, 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 Webster

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

Maximum UV Index Levels in Webster for December

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

Data source: Webster 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 Webster Compares to Other Months

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

This table compares monthly weather conditions in Webster, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-10°C (14°F)	20 mm (0.8 inches)	81%	moderate
February Weather	-11°C (13°F)	16 mm (0.6 inches)	85%	moderate
March Weather	-1°C (30°F)	40 mm (1.6 inches)	76%	high
April Weather	4°C (40°F)	59 mm (2.3 inches)	79%	high
May Weather	13°C (56°F)	74 mm (2.9 inches)	76%	very high
June Weather	20°C (69°F)	79 mm (3.1 inches)	81%	very high
July Weather	23°C (73°F)	77 mm (3.0 inches)	82%	very high
August Weather	21°C (69°F)	103 mm (4.1 inches)	82%	very high
September Weather	17°C (62°F)	87 mm (3.4 inches)	77%	very high
October Weather	7°C (45°F)	81 mm (3.2 inches)	76%	moderate
November Weather	0°C (32°F)	22 mm (0.9 inches)	84%	moderate
December Weather	-5°C (23°F)	34 mm (1.3 inches)	81%	low