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December Weather in Glouster, United States

Last updated: June 24, 2025

In Glouster, United States, the average temperature in December hovers around 3°C (38°F), creating a chilly atmosphere. Be prepared for a temperature range that can dip to a whopping -14°C (7°F) and reach as high as 19°C (66°F). During this month, expect around 110 mm (4.3 in) of precipitation spread over 11 days, yielding an impressive average humidity of 86%. Dress warmly and stay dry!

December Temperature in Glouster

In December in Glouster, the average temperature is 3°C (38°F), with maximums reaching 19°C (66°F) and minimums plummeting to -14°C (7°F). Pack layers to stay comfortable as you explore the diverse weather conditions!

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

The chart illustrates December temperature patterns in Glouster, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Glouster, December typically has an average temperature of 3°C (38°F), with highs reaching up to 19°C (66°F) and lows dropping to around -14°C (7°F).
JanFebMarAprMayJunJulAugSepOctNovDec333744546472767470594338
Data source: Temperature data for Glouster 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 Glouster

In Glouster in December, the precipitation amount is 110 mm (4.3 in) spread over 11 days.

December Precipitation Trends in Glouster

The chart displays monthly precipitation patterns in Glouster, 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 Glouster, December typically receives around 110 mm (4.3 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec8711611913913616112611910510585110
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Glouster

In Glouster in December humidity is 86%. With an average temperature of 3°C (38°F), this humidity feels like a damp chill that seeps through your layers, making traveling uncomfortable as breath clouds visibly in the crisp air.

December Average Humidity in Glouster

This chart illustrates the average monthly humidity levels in Glouster, 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 Glouster is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%88%87%82%84%82%73%74%81%89%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Glouster

In Glouster 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 Glouster, you can check the information here.

Maximum UV Index Levels in Glouster for December

The chart shows the monthly maximum UV Index (UVI) for Glouster 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 Glouster typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098643
Data source: Glouster 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 Glouster Compares to Other Months

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

This table compares monthly weather conditions in Glouster, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (33°F)87 mm (3.4 inches)88%moderate
February Weather3°C (37°F)116 mm (4.6 inches)88%moderate
March Weather7°C (44°F)119 mm (4.7 inches)88%high
April Weather12°C (54°F)139 mm (5.5 inches)86%very high
May Weather18°C (65°F)136 mm (5.4 inches)82%very high
June Weather22°C (72°F)161 mm (6.3 inches)84%very high
July Weather25°C (76°F)125 mm (4.9 inches)82%very high
August Weather23°C (74°F)119 mm (4.7 inches)73%very high
September Weather21°C (70°F)105 mm (4.1 inches)73%very high
October Weather15°C (59°F)105 mm (4.1 inches)81%high
November Weather6°C (44°F)84 mm (3.3 inches)89%moderate
December Weather3°C (38°F)110 mm (4.3 inches)86%moderate

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