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December Weather in Dahlgren, United States

Last updated: June 24, 2025

In December, the average temperature in Dahlgren, United States hovers around 5°C (41°F). Expect a minimum of -16°C (4°F) and a maximum of 22°C (72°F). Rainfall is moderate, with an expected precipitation amount of 90 mm (3.6 in) spread across 8 days. With an average humidity level of 87%, you may want to prepare for some chilly, damp weather!

December Temperature in Dahlgren

In December in Dahlgren, the average temperature is 5°C (41°F). The maximum can reach 22°C (72°F), while the minimum can be as low as -16°C (4°F). Be prepared for a wide range of temperatures, making it essential to pack layers for your trip.

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

The chart illustrates December temperature patterns in Dahlgren, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dahlgren, December typically has an average temperature of 5°C (41°F), with highs reaching up to 22°C (72°F) and lows dropping to around -16°C (4°F).
JanFebMarAprMayJunJulAugSepOctNovDec343748566877807773604540
Data source: Temperature data for Dahlgren 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 Dahlgren

In Dahlgren in December, the total precipitation amount is 90 mm (3.6 in) spread over the course of 8 days.

December Precipitation Trends in Dahlgren

The chart displays monthly precipitation patterns in Dahlgren, 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 Dahlgren, December typically receives around 90 mm (3.6 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec941071411281561069083691169290
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Dahlgren

In Dahlgren in December humidity is 87%. With an average temperature of 5°C (41°F), this humidity feels like a heavy, damp blanket enveloping you, making every step seem laborious and the chill more biting, which can be quite challenging for traveling.

December Average Humidity in Dahlgren

This chart illustrates the average monthly humidity levels in Dahlgren, 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 Dahlgren is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%84%83%80%83%82%83%79%79%88%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Dahlgren

In Dahlgren 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 Dahlgren, you can check the information here.

Maximum UV Index Levels in Dahlgren for December

The chart shows the monthly maximum UV Index (UVI) for Dahlgren 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 Dahlgren typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579111110109753
Data source: Dahlgren 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 Dahlgren Compares to Other Months

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

This table compares monthly weather conditions in Dahlgren, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)94 mm (3.7 inches)84%moderate
February Weather3°C (38°F)107 mm (4.2 inches)82%moderate
March Weather9°C (48°F)141 mm (5.5 inches)84%high
April Weather14°C (57°F)128 mm (5.0 inches)83%very high
May Weather20°C (69°F)156 mm (6.1 inches)80%extreme
June Weather25°C (77°F)106 mm (4.2 inches)83%extreme
July Weather27°C (80°F)90 mm (3.5 inches)82%very high
August Weather25°C (77°F)83 mm (3.3 inches)82%very high
September Weather23°C (73°F)69 mm (2.7 inches)79%very high
October Weather16°C (61°F)116 mm (4.5 inches)79%high
November Weather7°C (45°F)92 mm (3.6 inches)88%moderate
December Weather5°C (41°F)90 mm (3.6 inches)87%moderate

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