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December Weather in Randolph, United States

Last updated: June 24, 2025

In December, the average temperature in Randolph, United States hovers around -6°C (21°F), with extremes reaching a chilling -22°C (-8°F) at the lowest and a mild 11°C (52°F) at the highest. Expect around 44 mm (1.7 in) of precipitation spread over 8 days, contributing to an average humidity level of 88%. Stay warm and dry during this frosty month!

December Temperature in Randolph

In December, in Randolph, the average temperature is -6°C (21°F), with maximums reaching up to 11°C (52°F) and minimums dropping as low as -22°C (-8°F). Travelers should prepare for a cold climate and pack accordingly for varying temperatures.

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

The chart illustrates December temperature patterns in Randolph, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Randolph, December typically has an average temperature of -6°C (21°F), with highs reaching up to 11°C (52°F) and lows dropping to around -22°C (-8°F).
JanFebMarAprMayJunJulAugSepOctNovDec202230364861706858413021
Data source: Temperature data for Randolph 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 Randolph

In Randolph in December, the total precipitation amount is 44 mm (1.7 in) over a duration of 8 days.

December Precipitation Trends in Randolph

The chart displays monthly precipitation patterns in Randolph, 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 Randolph, December typically receives around 44 mm (1.7 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec486754586128242835424744
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Randolph

In Randolph in December, humidity is 88%. With an average temperature of -6°C (21°F), this humidity feels like an intense chill that seeps into your bones, making outdoor activities uncomfortable and requiring extra layers to stay warm.

December Average Humidity in Randolph

This chart illustrates the average monthly humidity levels in Randolph, 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 Randolph is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%92%84%75%62%56%44%37%46%67%84%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Randolph

In Randolph 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 Randolph, you can check the information here.

Maximum UV Index Levels in Randolph for December

The chart shows the monthly maximum UV Index (UVI) for Randolph 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 Randolph typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46811111212119753
Data source: Randolph 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 Randolph Compares to Other Months

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

This table compares monthly weather conditions in Randolph, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (20°F)48 mm (1.9 inches)91%moderate
February Weather-6°C (22°F)67 mm (2.6 inches)92%high
March Weather-1°C (31°F)54 mm (2.1 inches)84%very high
April Weather2°C (37°F)58 mm (2.3 inches)74%extreme
May Weather9°C (48°F)61 mm (2.4 inches)62%extreme
June Weather16°C (61°F)28 mm (1.1 inches)56%extreme
July Weather21°C (70°F)24 mm (1.0 inches)44%extreme
August Weather20°C (68°F)28 mm (1.1 inches)37%extreme
September Weather14°C (58°F)35 mm (1.4 inches)46%very high
October Weather5°C (41°F)42 mm (1.6 inches)67%high
November Weather-1°C (31°F)46 mm (1.8 inches)84%moderate
December Weather-6°C (21°F)44 mm (1.7 inches)88%moderate

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