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December Weather in Grayland, United States

Last updated: June 24, 2025

In Grayland, United States, the average temperature in December hovers around 7°C (45°F), with minimums dipping to -4°C (26°F) and highs reaching up to 14°C (58°F). Expect a significant precipitation of 223 mm (8.8 in) spread over 20 days, contributing to an average humidity of 87%. Prepare for a wet and chilly month!

December Temperature in Grayland

In December in Grayland, the average temperature is 7°C (45°F), with maximums reaching 14°C (58°F) and minimums dropping as low as -4°C (26°F). Travelers should pack layers to stay comfortable during the day and warm for cooler evenings.

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

The chart illustrates December temperature patterns in Grayland, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grayland, December typically has an average temperature of 7°C (45°F), with highs reaching up to 14°C (58°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec454346505459616260534944
Data source: Temperature data for Grayland 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 Grayland

In Grayland in December, the precipitation amount reaches 223 mm (8.8 in) over a span of 20 days.

December Precipitation Trends in Grayland

The chart displays monthly precipitation patterns in Grayland, 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 Grayland, December typically receives around 223 mm (8.8 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec2381701501295947151292155255223
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Grayland

In Grayland in December, humidity is 87%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making outdoor adventures somewhat uncomfortable and urging travelers to seek refuge in cozy cafes or warm indoor activities.

December Average Humidity in Grayland

This chart illustrates the average monthly humidity levels in Grayland, 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 Grayland 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 Grayland

In Grayland in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Grayland, you can visit Hourly UV Index in Grayland.

Maximum UV Index Levels in Grayland for December

The chart shows the monthly maximum UV Index (UVI) for Grayland 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 Grayland typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235699987532
Data source: Grayland 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 Grayland Compares to Other Months

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

This table compares monthly weather conditions in Grayland, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)238 mm (9.4 inches)86%low
February Weather6°C (43°F)170 mm (6.7 inches)84%moderate
March Weather8°C (46°F)150 mm (5.9 inches)85%moderate
April Weather10°C (50°F)129 mm (5.1 inches)83%high
May Weather12°C (55°F)59 mm (2.3 inches)84%very high
June Weather15°C (59°F)47 mm (1.8 inches)84%very high
July Weather16°C (61°F)15 mm (0.6 inches)82%very high
August Weather17°C (62°F)12 mm (0.5 inches)73%very high
September Weather16°C (60°F)91 mm (3.6 inches)74%high
October Weather12°C (53°F)154 mm (6.1 inches)83%moderate
November Weather9°C (49°F)255 mm (10.0 inches)86%moderate
December Weather7°C (45°F)223 mm (8.8 inches)87%low

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