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December Weather in Buffalo, United States

Last updated: June 24, 2025

In December, the average temperature in Buffalo, United States hovers around 5°C (41°F). However, temperatures can range significantly, with a minimum of -14°C (7°F) and reaching up to a maximum of 24°C (76°F). Expect 47 mm (1.8 in) of precipitation spread over 6 days, accompanied by a notable average humidity of 87%, making this a particularly damp time of year.

December Temperature in Buffalo

In December in Buffalo, the average temperature is 5°C (41°F). Maximums can reach 24°C (76°F) and minimums can be as low as -14°C (7°F). Be prepared for a wide range of temperatures when traveling to Buffalo during this month.

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 5°C (41°F), with highs reaching up to 24°C (76°F) and lows dropping to around -14°C (7°F).
JanFebMarAprMayJunJulAugSepOctNovDec343748556676797673594641
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 total precipitation amount is 47 mm (1.8 in) spread over the course of 6 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 47 mm (1.8 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec7573128142167929096541306347
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 87%. With an average temperature of 5°C (41°F), this humidity feels like a heavy, damp blanket enveloping you, making every step seem laborious and the chill more biting, which can be quite challenging for traveling.

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 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%78%76%78%83%83%78%68%64%70%83%87%
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 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 Buffalo, you can check the information here.

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 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
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 Weather1°C (35°F)75 mm (3.0 inches)81%moderate
February Weather3°C (37°F)73 mm (2.9 inches)78%high
March Weather9°C (49°F)128 mm (5.0 inches)76%high
April Weather13°C (55°F)142 mm (5.6 inches)78%very high
May Weather19°C (66°F)167 mm (6.6 inches)83%very high
June Weather24°C (76°F)92 mm (3.6 inches)83%extreme
July Weather26°C (80°F)90 mm (3.5 inches)78%extreme
August Weather25°C (77°F)96 mm (3.8 inches)68%very high
September Weather23°C (73°F)54 mm (2.1 inches)64%very high
October Weather15°C (59°F)130 mm (5.1 inches)70%high
November Weather8°C (46°F)63 mm (2.5 inches)83%moderate
December Weather5°C (41°F)47 mm (1.8 inches)87%moderate

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