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December Weather in Masontown, United States

Last updated: June 24, 2025

In December, the average temperature in Masontown, United States hovers around 2°C (37°F). Expect conditions to vary, with minimums dropping to -17°C (1°F) and a maximum reaching up to 19°C (66°F). Prepare for 135 mm (5.3 in) of precipitation over approximately 16 days, and brace for an average humidity level of 85%.

December Temperature in Masontown

In December in Masontown, the average temperature is 2°C (37°F). Maximums can reach 19°C (66°F), while minimums can drop as low as -17°C (1°F). Be prepared for a wide range of temperatures and pack accordingly for your trip!

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

The chart illustrates December temperature patterns in Masontown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Masontown, December typically has an average temperature of 2°C (37°F), with highs reaching up to 19°C (66°F) and lows dropping to around -17°C (1°F).
JanFebMarAprMayJunJulAugSepOctNovDec313642516168737166564236
Data source: Temperature data for Masontown 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 Masontown

In Masontown in December, precipitation amounts to 135 mm (5.3 in) over the course of 16 days.

December Precipitation Trends in Masontown

The chart displays monthly precipitation patterns in Masontown, 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 Masontown, December typically receives around 135 mm (5.3 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec9815612115016115311310211111893135
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Masontown

In Masontown in December, humidity is 85%. With an average temperature of 2°C (37°F), this humidity feels like a damp chill that seeps into your bones, making outdoor excursions feel much colder than the thermometer suggests.

December Average Humidity in Masontown

This chart illustrates the average monthly humidity levels in Masontown, 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 Masontown is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%84%78%79%70%59%68%80%87%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Masontown

In Masontown 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 Masontown, you can check the information here.

Maximum UV Index Levels in Masontown for December

The chart shows the monthly maximum UV Index (UVI) for Masontown 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 Masontown typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101010108753
Data source: Masontown 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 Masontown Compares to Other Months

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

This table compares monthly weather conditions in Masontown, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (31°F)98 mm (3.9 inches)86%moderate
February Weather2°C (37°F)156 mm (6.1 inches)86%moderate
March Weather5°C (42°F)121 mm (4.8 inches)86%high
April Weather11°C (51°F)149 mm (5.9 inches)84%very high
May Weather16°C (62°F)161 mm (6.3 inches)78%very high
June Weather20°C (68°F)153 mm (6.0 inches)79%very high
July Weather23°C (73°F)113 mm (4.4 inches)70%very high
August Weather22°C (71°F)102 mm (4.0 inches)59%very high
September Weather19°C (66°F)111 mm (4.4 inches)68%very high
October Weather13°C (57°F)118 mm (4.7 inches)80%high
November Weather5°C (42°F)92 mm (3.6 inches)86%moderate
December Weather2°C (37°F)135 mm (5.3 inches)85%moderate

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