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December Weather in Buffalo, United States

Last updated: June 24, 2025

In Buffalo, United States, the average temperature in December hovers around 1°C (35°F). However, be prepared for a wide range in temperatures, as it can dip to a minimum of -22°C (-8°F) and soar to a maximum of 18°C (64°F). Expect about 62 mm (2.4 in) of precipitation spread over 9 days, contributing to an average humidity of 86%.

December Temperature in Buffalo

In December in Buffalo, the average temperature is 1°C (35°F). Maximums can reach 18°C (64°F), while minimums can dip as low as -22°C (-8°F). Be prepared for a wide range of temperatures and pack accordingly if you plan to travel during this time.

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

The chart illustrates December temperature patterns in Buffalo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Buffalo, December typically has an average temperature of 1°C (35°F), with highs reaching up to 18°C (64°F) and lows dropping to around -22°C (-8°F).
JanFebMarAprMayJunJulAugSepOctNovDec283041506373767469564135
Data source: Temperature data for Buffalo 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 Buffalo

In Buffalo in December, the precipitation amount is 62 mm (2.4 in) over the course of 9 days.

December Precipitation Trends in Buffalo

The chart displays monthly precipitation patterns in Buffalo, 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 Buffalo, December typically receives around 62 mm (2.4 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec7477103102165109111108661167462
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Buffalo

In Buffalo in December, humidity is 86%. With an average temperature of 1°C (35°F), this humidity feels like a biting chill that wraps around you, making outdoor exploration uncomfortable and requiring extra layers to stay warm while navigating the damp air.

December Average Humidity in Buffalo

This chart illustrates the average monthly humidity levels in Buffalo, 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 Buffalo is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%86%87%81%82%81%79%78%81%89%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Buffalo

In Buffalo in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Buffalo, you can visit Hourly UV Index in Buffalo.

Maximum UV Index Levels in Buffalo for December

The chart shows the monthly maximum UV Index (UVI) for Buffalo 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 Buffalo typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35699101098642
Data source: Buffalo 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 Buffalo Compares to Other Months

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

This table compares monthly weather conditions in Buffalo, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)74 mm (2.9 inches)85%moderate
February Weather-1°C (30°F)77 mm (3.0 inches)85%moderate
March Weather5°C (41°F)103 mm (4.0 inches)86%high
April Weather10°C (51°F)102 mm (4.0 inches)87%very high
May Weather17°C (63°F)165 mm (6.5 inches)81%very high
June Weather23°C (74°F)109 mm (4.3 inches)82%very high
July Weather25°C (77°F)111 mm (4.4 inches)81%very high
August Weather23°C (74°F)108 mm (4.2 inches)79%very high
September Weather20°C (69°F)66 mm (2.6 inches)78%very high
October Weather14°C (57°F)116 mm (4.5 inches)81%high
November Weather5°C (41°F)74 mm (2.9 inches)89%moderate
December Weather1°C (35°F)62 mm (2.4 inches)86%low

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