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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 -2°C (29°F), with a notable range from a chilling -22°C (-8°F) to a mild 18°C (65°F). Expect 46 mm (1.8 in) of precipitation spread across 6 days, paired with a high average humidity of 81%. Prepare for a month of contrasts!

December Temperature in Randolph

In December in Randolph, the average temperature is -2°C (29°F). Maximum temperatures can reach up to 18°C (65°F), while minimums can drop as low as -22°C (-8°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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 -2°C (29°F), with highs reaching up to 18°C (65°F) and lows dropping to around -22°C (-8°F).
JanFebMarAprMayJunJulAugSepOctNovDec202134455970747064513628
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 precipitation amount is 46 mm (1.8 in) over a span of 6 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 46 mm (1.8 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec48515810112411010299961134546
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 81%. With an average temperature of -2°C (29°F), this humidity feels like an uncomfortable chill that seeps into your bones, making outdoor activities less enjoyable and requiring extra layers to stay warm while traveling.

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 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%85%85%78%80%78%76%79%83%88%82%
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 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 Randolph, you can visit Hourly UV Index in Randolph.

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 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34589101097532
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-6°C (21°F)48 mm (1.9 inches)85%moderate
February Weather-6°C (21°F)51 mm (2.0 inches)85%moderate
March Weather1°C (35°F)58 mm (2.3 inches)85%moderate
April Weather7°C (45°F)101 mm (4.0 inches)85%very high
May Weather15°C (59°F)124 mm (4.9 inches)78%very high
June Weather21°C (70°F)110 mm (4.3 inches)80%very high
July Weather23°C (74°F)102 mm (4.0 inches)78%very high
August Weather21°C (71°F)99 mm (3.9 inches)76%very high
September Weather18°C (64°F)95 mm (3.8 inches)79%high
October Weather10°C (51°F)113 mm (4.4 inches)83%moderate
November Weather2°C (36°F)45 mm (1.8 inches)88%moderate
December Weather-2°C (29°F)46 mm (1.8 inches)81%low

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