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December Weather in Plainville, United States

Last updated: June 24, 2025

In December, the average temperature in Plainville, United States is a chilly 2°C (36°F), with extremes ranging from a bone-numbing -15°C (5°F) to a surprising 24°C (76°F). You can expect about 31 mm (1.2 in) of precipitation over 2 days, coupled with a high average humidity of 83%. Embrace the cool climate and prepare for varied weather!

December Temperature in Plainville

In December in Plainville, the average temperature is 2°C (36°F). The maximum can reach 24°C (76°F), while the minimum can drop as low as -15°C (5°F). Be prepared for a wide range of temperatures if you plan to travel during this time.

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

The chart illustrates December temperature patterns in Plainville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Plainville, December typically has an average temperature of 2°C (36°F), with highs reaching up to 24°C (76°F) and lows dropping to around -15°C (5°F).
JanFebMarAprMayJunJulAugSepOctNovDec303144536377807772554435
Data source: Temperature data for Plainville 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 Plainville

In Plainville in December, the precipitation amount is 31 mm (1.2 in) over a span of 2 days.

December Precipitation Trends in Plainville

The chart displays monthly precipitation patterns in Plainville, 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 Plainville, December typically receives around 31 mm (1.2 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec2420664015163798554612131
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Plainville

In Plainville in December, humidity is 83%. With an average temperature of 2°C (36°F), this humidity feels like a cold, damp blanket, making travel uncomfortable as the chill seeps into your bones and the moisture clings to your clothing, forcing you to constantly seek warmth and shelter.

December Average Humidity in Plainville

This chart illustrates the average monthly humidity levels in Plainville, 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 Plainville is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%78%67%70%82%81%80%80%74%71%79%83%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Plainville

In Plainville 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 Plainville, you can check the information here.

Maximum UV Index Levels in Plainville for December

The chart shows the monthly maximum UV Index (UVI) for Plainville 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 Plainville typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109643
Data source: Plainville 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 Plainville Compares to Other Months

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

This table compares monthly weather conditions in Plainville, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)24 mm (0.9 inches)74%moderate
February Weather-1°C (31°F)20 mm (0.8 inches)78%moderate
March Weather7°C (44°F)66 mm (2.6 inches)67%high
April Weather12°C (53°F)40 mm (1.6 inches)70%very high
May Weather17°C (64°F)151 mm (5.9 inches)82%very high
June Weather25°C (77°F)63 mm (2.5 inches)81%extreme
July Weather27°C (81°F)79 mm (3.1 inches)80%extreme
August Weather25°C (77°F)85 mm (3.3 inches)80%very high
September Weather22°C (72°F)54 mm (2.1 inches)73%very high
October Weather13°C (55°F)61 mm (2.4 inches)71%high
November Weather6°C (44°F)21 mm (0.8 inches)79%moderate
December Weather2°C (36°F)31 mm (1.2 inches)83%moderate

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