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December Weather in Alderson, United States

Last updated: June 24, 2025

In December, the average temperature in Alderson, United States hovers around 3°C (38°F). Expect chilly days, with minimums plummeting to -17°C (1°F) and maximums reaching a mild 19°C (67°F). Throughout the month, anticipate 98 mm (3.9 in) of precipitation over approximately 10 days, contributing to a high average humidity of 86%. Stay warm and prepared for the wet conditions!

December Temperature in Alderson

In December in Alderson, the average temperature is 3°C (38°F). The maximum can reach 19°C (67°F), while the minimum can drop as low as -17°C (1°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates December temperature patterns in Alderson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alderson, December typically has an average temperature of 3°C (38°F), with highs reaching up to 19°C (67°F) and lows dropping to around -17°C (1°F).
JanFebMarAprMayJunJulAugSepOctNovDec333843526167727066564237
Data source: Temperature data for Alderson 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 Alderson

In Alderson in December, the total precipitation amount is 98 mm (3.9 in) recorded over a span of 10 days.

December Precipitation Trends in Alderson

The chart displays monthly precipitation patterns in Alderson, 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 Alderson, December typically receives around 98 mm (3.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec81142104128137977485871146998
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Alderson

In Alderson 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 Alderson

This chart illustrates the average monthly humidity levels in Alderson, 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 Alderson is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%86%84%83%83%79%66%68%78%89%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Alderson

In Alderson 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 Alderson, you can check the information here.

Maximum UV Index Levels in Alderson for December

The chart shows the monthly maximum UV Index (UVI) for Alderson 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 Alderson typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109753
Data source: Alderson 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 Alderson Compares to Other Months

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

This table compares monthly weather conditions in Alderson, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)81 mm (3.2 inches)87%moderate
February Weather3°C (39°F)142 mm (5.6 inches)87%high
March Weather6°C (44°F)104 mm (4.1 inches)86%very high
April Weather11°C (52°F)128 mm (5.0 inches)84%very high
May Weather16°C (61°F)137 mm (5.4 inches)83%extreme
June Weather20°C (68°F)97 mm (3.8 inches)83%extreme
July Weather22°C (72°F)74 mm (2.9 inches)79%extreme
August Weather21°C (71°F)85 mm (3.3 inches)66%very high
September Weather19°C (66°F)86 mm (3.4 inches)68%very high
October Weather13°C (56°F)114 mm (4.5 inches)78%high
November Weather5°C (42°F)69 mm (2.7 inches)89%moderate
December Weather3°C (38°F)98 mm (3.9 inches)86%moderate

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