December Weather in Florence, United States

Last updated: June 24, 2025

In December, the average temperature in Florence, United States hovers around 10°C (50°F), with a range that can dip to a brisk -6°C (21°F) and peak at a warm 26°C (80°F). Expect 138 mm (5.4 in) of precipitation over 10 days, contributing to an average humidity of 86%. Pack accordingly for a blend of cool, damp days and occasional warmth!

December Temperature in Florence

In December in Florence, the average temperature is 10°C (50°F). Maximum temperatures can reach up to 26°C (80°F), while minimums can drop as low as -6°C (21°F). Be prepared for a wide range of temperatures when traveling during this month.

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

The chart illustrates December temperature patterns in Florence, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Florence, December typically has an average temperature of 10°C (50°F), with highs reaching up to 26°C (80°F) and lows dropping to around -6°C (21°F).

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

December Precipitation in Florence

In Florence in December, the precipitation amount is 138 mm (5.4 in) over a span of 10 days.

December Precipitation Trends in Florence

The chart displays monthly precipitation patterns in Florence, 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 Florence, December typically receives around 138 mm (5.4 inches) of precipitation spread over approximately 10 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 Florence

In Florence 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 Florence

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

In Florence 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 Florence for better planning.

Maximum UV Index Levels in Florence for December

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

Data source: Florence 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 Florence Compares to Other Months

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

This table compares monthly weather conditions in Florence, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (48°F)	78 mm (3.1 inches)	85%	moderate
February Weather	12°C (53°F)	96 mm (3.8 inches)	82%	high
March Weather	14°C (57°F)	67 mm (2.6 inches)	81%	very high
April Weather	18°C (65°F)	95 mm (3.7 inches)	80%	very high
May Weather	23°C (74°F)	121 mm (4.8 inches)	81%	extreme
June Weather	26°C (78°F)	139 mm (5.5 inches)	81%	extreme
July Weather	27°C (81°F)	140 mm (5.5 inches)	81%	extreme
August Weather	27°C (80°F)	154 mm (6.0 inches)	80%	very high
September Weather	25°C (77°F)	160 mm (6.3 inches)	79%	very high
October Weather	20°C (68°F)	56 mm (2.2 inches)	80%	very high
November Weather	12°C (55°F)	75 mm (3.0 inches)	85%	high
December Weather	10°C (50°F)	138 mm (5.4 inches)	86%	moderate