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December Weather in Walden, United States

Last updated: June 24, 2025

In December, the average temperature in Walden, United States hovers around -8°C (17°F), with extremes ranging from a bone-chilling -30°C (-21°F) to a more moderate 10°C (51°F). During this frosty month, you can expect 48 mm (1.9 in) of precipitation spread over 10 days, while the humidity remains high at 85%, creating a crisp and damp winter atmosphere.

December Temperature in Walden

In December in Walden, the average temperature is -8°C (17°F). Maximums can reach 10°C (51°F) and minimums can be as low as -30°C (-21°F). Travelers should be prepared for a wide range of temperatures and dress in layers to enjoy outdoor activities comfortably.

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

The chart illustrates December temperature patterns in Walden, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Walden, December typically has an average temperature of -8°C (17°F), with highs reaching up to 10°C (51°F) and lows dropping to around -30°C (-21°F).
JanFebMarAprMayJunJulAugSepOctNovDec171927324054615952352517
Data source: Temperature data for Walden 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 Walden

In Walden in December, the precipitation amount is 48 mm (1.9 in) spread over a period of 10 days.

December Precipitation Trends in Walden

The chart displays monthly precipitation patterns in Walden, 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 Walden, December typically receives around 48 mm (1.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec436352515836282829474348
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Walden

In Walden in December humidity is 85%. With an average temperature of -8°C (17°F), this humidity feels like a biting chill that seeps into your bones, making outdoor travel uncomfortable and requiring extra layers to stay warm and dry.

December Average Humidity in Walden

This chart illustrates the average monthly humidity levels in Walden, 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 Walden is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%86%75%67%67%68%62%63%63%72%80%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Walden

In Walden 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 Walden, you can check the information here.

Maximum UV Index Levels in Walden for December

The chart shows the monthly maximum UV Index (UVI) for Walden 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 Walden typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469121213121110753
Data source: Walden 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 Walden Compares to Other Months

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

This table compares monthly weather conditions in Walden, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (17°F)43 mm (1.7 inches)84%moderate
February Weather-7°C (19°F)63 mm (2.5 inches)85%high
March Weather-3°C (27°F)52 mm (2.1 inches)75%very high
April Weather0°C (32°F)51 mm (2.0 inches)67%extreme
May Weather5°C (41°F)58 mm (2.3 inches)67%extreme
June Weather12°C (55°F)36 mm (1.4 inches)68%extreme
July Weather16°C (61°F)28 mm (1.1 inches)62%extreme
August Weather15°C (59°F)28 mm (1.1 inches)63%extreme
September Weather11°C (52°F)29 mm (1.1 inches)63%very high
October Weather2°C (35°F)47 mm (1.9 inches)72%high
November Weather-4°C (25°F)43 mm (1.7 inches)79%moderate
December Weather-8°C (17°F)48 mm (1.9 inches)85%moderate

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