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December Weather in Langley, United States

Last updated: June 24, 2025

In Langley, United States, the average temperature in December hovers around 7°C (44°F). During this time, temperatures can dip as low as -5°C (23°F), with highs reaching up to 12°C (54°F). Expect significant precipitation, totaling 186 mm (7.3 in) over approximately 19 days, accompanied by an average humidity of 87%.

December Temperature in Langley

In December in Langley, the average temperature is 7°C (44°F). Maximums can reach 12°C (54°F) and minimums can drop as low as -5°C (23°F). Be prepared for chilly weather and pack accordingly for your trip!

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

The chart illustrates December temperature patterns in Langley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Langley, December typically has an average temperature of 7°C (44°F), with highs reaching up to 12°C (54°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec444245495559626460534844
Data source: Temperature data for Langley 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 Langley

In Langley in December, the precipitation amount is 186 mm (7.3 in) over a span of 19 days.

December Precipitation Trends in Langley

The chart displays monthly precipitation patterns in Langley, 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 Langley, December typically receives around 186 mm (7.3 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec167152119956766293085140186186
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Langley

In Langley in December, humidity is 87%. With an average temperature of 7°C (44°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and requiring travelers to layer up to stay warm and dry.

December Average Humidity in Langley

This chart illustrates the average monthly humidity levels in Langley, 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 Langley is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%85%83%84%84%82%73%74%83%86%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Langley

In Langley in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Langley.

Maximum UV Index Levels in Langley for December

The chart shows the monthly maximum UV Index (UVI) for Langley 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 Langley typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987521
Data source: Langley 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 Langley Compares to Other Months

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

This table compares monthly weather conditions in Langley, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (44°F)167 mm (6.6 inches)86%low
February Weather5°C (42°F)152 mm (6.0 inches)84%moderate
March Weather7°C (46°F)119 mm (4.7 inches)85%moderate
April Weather10°C (49°F)95 mm (3.8 inches)83%high
May Weather13°C (55°F)67 mm (2.7 inches)84%very high
June Weather15°C (59°F)66 mm (2.6 inches)84%very high
July Weather17°C (63°F)29 mm (1.1 inches)82%very high
August Weather18°C (64°F)30 mm (1.2 inches)73%very high
September Weather15°C (60°F)85 mm (3.3 inches)74%high
October Weather12°C (53°F)140 mm (5.5 inches)83%moderate
November Weather9°C (48°F)186 mm (7.3 inches)86%low
December Weather7°C (44°F)186 mm (7.3 inches)87%low

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