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December Weather in LeRoy, United States

Last updated: June 24, 2025

In December, the average temperature in LeRoy, United States hovers around 4°C (39°F), with a minimum of -15°C (5°F) and a maximum reaching 23°C (74°F). Expect some precipitation with an average of 31 mm (1.2 in) over about 3 days, accompanied by a high humidity level of 85%. Prepare for a mix of chilly and warm spells!

December Temperature in LeRoy

In December in LeRoy, the average temperature is 4°C (39°F), with maximums reaching 23°C (74°F) and minimums dropping as low as -15°C (5°F). Travelers should be prepared for a wide range of temperatures and dress in layers to stay comfortable.

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

The chart illustrates December temperature patterns in LeRoy, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In LeRoy, December typically has an average temperature of 4°C (39°F), with highs reaching up to 23°C (74°F) and lows dropping to around -15°C (5°F).
JanFebMarAprMayJunJulAugSepOctNovDec333548556677807773584539
Data source: Temperature data for LeRoy 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 LeRoy

In LeRoy in December, the precipitation amount is 31 mm (1.2 in) over the course of 3 days.

December Precipitation Trends in LeRoy

The chart displays monthly precipitation patterns in LeRoy, 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 LeRoy, December typically receives around 31 mm (1.2 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec55438410519311498118771333331
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in LeRoy

In LeRoy in December, humidity is 85%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and requiring extra layers to ward off the cold and moisture.

December Average Humidity in LeRoy

This chart illustrates the average monthly humidity levels in LeRoy, 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 LeRoy is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%76%71%74%83%83%81%73%67%72%82%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in LeRoy

In LeRoy in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in LeRoy, you can check the information here.

Maximum UV Index Levels in LeRoy for December

The chart shows the monthly maximum UV Index (UVI) for LeRoy 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 LeRoy typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3679101111109743
Data source: LeRoy 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 LeRoy Compares to Other Months

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

This table compares monthly weather conditions in LeRoy, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)55 mm (2.2 inches)77%moderate
February Weather1°C (35°F)43 mm (1.7 inches)76%high
March Weather9°C (49°F)84 mm (3.3 inches)71%high
April Weather13°C (56°F)105 mm (4.1 inches)73%very high
May Weather19°C (67°F)193 mm (7.6 inches)83%very high
June Weather25°C (78°F)114 mm (4.5 inches)83%extreme
July Weather27°C (80°F)98 mm (3.8 inches)81%extreme
August Weather25°C (78°F)118 mm (4.7 inches)73%very high
September Weather23°C (73°F)77 mm (3.0 inches)67%very high
October Weather14°C (58°F)133 mm (5.2 inches)72%high
November Weather7°C (46°F)33 mm (1.3 inches)82%moderate
December Weather4°C (39°F)31 mm (1.2 inches)85%moderate

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