December Weather in Kelly, United States

Last updated: June 24, 2025

In December, the average temperature in Kelly, United States hovers around 10°C (50°F), making it a season of fluctuating climate. Expect a minimum chill of -7°C (20°F) and occasional warmth peaking at 25°C (78°F). The weather brings with it 121 mm (4.7 in) of precipitation spread across 9 days, coupled with a notable average humidity of 86%.

December Temperature in Kelly

In December in Kelly, the average temperature is 10°C (50°F), with maximums reaching 25°C (78°F) and minimums dropping as low as -7°C (20°F). Travelers should be prepared for a wide range of temperatures, so pack accordingly for both warm and chilly moments.

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

The chart illustrates December temperature patterns in Kelly, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kelly, December typically has an average temperature of 10°C (50°F), with highs reaching up to 25°C (78°F) and lows dropping to around -7°C (20°F).

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

December Precipitation in Kelly

In Kelly in December, the precipitation amount is 121 mm (4.7 in) spread over 9 days.

December Precipitation Trends in Kelly

The chart displays monthly precipitation patterns in Kelly, 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 Kelly, December typically receives around 121 mm (4.7 inches) of precipitation spread over approximately 9 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 Kelly

In Kelly in December humidity is 86%. With an average temperature of 10°C (50°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities uncomfortable and sticky, which can dampen the spirit of travel.

December Average Humidity in Kelly

This chart illustrates the average monthly humidity levels in Kelly, 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 Kelly is approximately 86%, 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 Kelly

In Kelly 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 Kelly for better planning.

Maximum UV Index Levels in Kelly for December

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

Data source: Kelly 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 Kelly Compares to Other Months

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

This table compares monthly weather conditions in Kelly, 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 (47°F)	74 mm (2.9 inches)	85%	moderate
February Weather	11°C (52°F)	90 mm (3.5 inches)	82%	high
March Weather	13°C (56°F)	69 mm (2.7 inches)	81%	very high
April Weather	18°C (64°F)	92 mm (3.6 inches)	80%	very high
May Weather	22°C (72°F)	124 mm (4.9 inches)	81%	extreme
June Weather	25°C (77°F)	168 mm (6.6 inches)	81%	extreme
July Weather	27°C (80°F)	167 mm (6.6 inches)	81%	extreme
August Weather	26°C (79°F)	205 mm (8.1 inches)	80%	very high
September Weather	24°C (76°F)	203 mm (8.0 inches)	79%	very high
October Weather	20°C (68°F)	61 mm (2.4 inches)	80%	very high
November Weather	12°C (54°F)	112 mm (4.4 inches)	85%	high
December Weather	10°C (50°F)	121 mm (4.7 inches)	86%	moderate