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December Weather in Florence, United States

Last updated: June 24, 2025

In December, the average temperature in Florence, United States is a cool 9°C (48°F). Temperatures can vary significantly, with a minimum of -7°C (20°F) and a maximum reaching 23°C (74°F). This month typically sees 145 mm (5.7 in) of precipitation spread over 10 days, accompanied by elevated humidity levels averaging around 88%. Be prepared for a mix of chilly days and occasional warmth!

December Temperature in Florence

In December in Florence, the average temperature is 9°C (48°F), with maximums reaching 23°C (74°F) and minimums dropping as low as -7°C (20°F). It's advisable to pack layers to comfortably adapt to the varying temperatures while exploring the area.

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 9°C (48°F), with highs reaching up to 23°C (74°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec434856617177818075655047
Data source: Temperature data for Florence generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Florence

In Florence in December, the precipitation amount is 145 mm (5.7 in) spread over a duration 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 145 mm (5.7 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec11317815715912212112011511511369145
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Florence

In Florence in December, humidity is 88%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill settling into your bones, making outdoor exploration feel heavy and oppressive.

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 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%84%81%83%83%80%74%70%73%85%88%
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.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109754
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.
 TemperaturePrecipitationHumidityUV
January Weather6°C (44°F)113 mm (4.5 inches)86%moderate
February Weather9°C (49°F)178 mm (7.0 inches)85%high
March Weather13°C (56°F)157 mm (6.2 inches)84%very high
April Weather16°C (61°F)159 mm (6.3 inches)81%very high
May Weather22°C (71°F)122 mm (4.8 inches)83%extreme
June Weather25°C (78°F)121 mm (4.7 inches)83%extreme
July Weather27°C (81°F)120 mm (4.7 inches)80%extreme
August Weather27°C (80°F)115 mm (4.5 inches)73%very high
September Weather24°C (76°F)115 mm (4.5 inches)70%very high
October Weather18°C (65°F)113 mm (4.4 inches)73%high
November Weather10°C (51°F)69 mm (2.7 inches)85%moderate
December Weather9°C (48°F)145 mm (5.7 inches)88%moderate

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