December Weather in De Witt, United States

Last updated: June 24, 2025

In December, the average temperature in De Witt, United States hovers around 9°C (49°F). Be prepared for a temperature range where the minimum dips to -7°C (19°F) and the maximum can reach 26°C (79°F). Expect 150 mm (5.9 in) of precipitation over about 11 days, and keep in mind the average humidity is a high 88%, making for a rather damp atmosphere.

December Temperature in De Witt

In December in De Witt, the average temperature is 9°C (49°F), with maximums reaching up to 26°C (79°F) and minimums dropping as low as -7°C (19°F). Travelers should be prepared for a range of temperatures, so dressing in layers is advisable.

December Weather in De Witt: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in De Witt, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In De Witt, December typically has an average temperature of 9°C (49°F), with highs reaching up to 26°C (79°F) and lows dropping to around -7°C (19°F).

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

December Precipitation in De Witt

In De Witt in December, the total precipitation amount reaches 150 mm (5.9 in) over the course of 11 days.

December Precipitation Trends in De Witt

The chart displays monthly precipitation patterns in De Witt, 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 De Witt, December typically receives around 150 mm (5.9 inches) of precipitation spread over approximately 11 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

December Humidity in De Witt

In De Witt in December, humidity is 88%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and requiring extra layers to stay warm and dry.

December Average Humidity in De Witt

This chart illustrates the average monthly humidity levels in De Witt, 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 De Witt is approximately 88%, 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 De Witt

In De Witt in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in De Witt for better planning.

Maximum UV Index Levels in De Witt for December

The chart shows the monthly maximum UV Index (UVI) for De Witt 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 De Witt typically reaches 4, which falls under the moderate exposure category.

Data source: De Witt 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 De Witt Compares to Other Months

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

This table compares monthly weather conditions in De Witt, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (44°F)	112 mm (4.4 inches)	84%	moderate
February Weather	9°C (48°F)	181 mm (7.1 inches)	83%	high
March Weather	14°C (58°F)	183 mm (7.2 inches)	81%	very high
April Weather	17°C (63°F)	141 mm (5.5 inches)	81%	very high
May Weather	23°C (73°F)	145 mm (5.7 inches)	83%	extreme
June Weather	26°C (80°F)	116 mm (4.6 inches)	83%	extreme
July Weather	28°C (83°F)	111 mm (4.4 inches)	81%	extreme
August Weather	27°C (81°F)	120 mm (4.7 inches)	74%	extreme
September Weather	25°C (77°F)	85 mm (3.3 inches)	71%	very high
October Weather	19°C (66°F)	134 mm (5.3 inches)	76%	high
November Weather	11°C (52°F)	79 mm (3.1 inches)	84%	high
December Weather	9°C (49°F)	150 mm (5.9 inches)	88%	moderate