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December Weather in Covelo, United States

Last updated: June 24, 2025

In December, the average temperature in Covelo, United States hovers around 5°C (42°F), with a minimum that can dip to -7°C (20°F) and a maximum reaching up to 21°C (70°F). Expect about 136 mm (5.4 in) of precipitation spread over 11 days, paired with an average humidity of 84%. Prepare for a month that showcases the character of Covelo in all its chilly and damp glory!

December Temperature in Covelo

In December in Covelo, the average temperature is 5°C (42°F). Maximums can reach 21°C (70°F) and minimums can be as low as -7°C (20°F). Be prepared for a variety of weather conditions while traveling during this time.

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

The chart illustrates December temperature patterns in Covelo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Covelo, December typically has an average temperature of 5°C (42°F), with highs reaching up to 21°C (70°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec424345515766747366574842
Data source: Temperature data for Covelo 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 Covelo

In Covelo in December, the total precipitation amount reaches 136 mm (5.4 in) over the course of 11 days.

December Precipitation Trends in Covelo

The chart displays monthly precipitation patterns in Covelo, 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 Covelo, December typically receives around 136 mm (5.4 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec20019015289658131356115136
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Covelo

In Covelo in December, humidity is 84%. With an average temperature of 5°C (42°F), this humidity feels like a thick blanket wrapping around you, making every step feel heavier while traveling.

December Average Humidity in Covelo

This chart illustrates the average monthly humidity levels in Covelo, 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 Covelo is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%83%80%80%76%70%66%68%72%84%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Covelo

In Covelo 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 Covelo, you can check the information here.

Maximum UV Index Levels in Covelo for December

The chart shows the monthly maximum UV Index (UVI) for Covelo 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 Covelo typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3578111111119743
Data source: Covelo 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 Covelo Compares to Other Months

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

This table compares monthly weather conditions in Covelo, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (42°F)200 mm (7.9 inches)86%moderate
February Weather6°C (43°F)190 mm (7.5 inches)84%moderate
March Weather7°C (45°F)152 mm (6.0 inches)83%high
April Weather11°C (51°F)89 mm (3.5 inches)80%very high
May Weather14°C (57°F)65 mm (2.6 inches)80%extreme
June Weather19°C (67°F)8 mm (0.3 inches)76%extreme
July Weather23°C (74°F)1 mm (0.0 inches)70%extreme
August Weather23°C (73°F)3 mm (0.1 inches)66%extreme
September Weather19°C (67°F)13 mm (0.5 inches)68%very high
October Weather14°C (58°F)56 mm (2.2 inches)72%high
November Weather9°C (48°F)115 mm (4.5 inches)84%moderate
December Weather5°C (42°F)136 mm (5.4 inches)84%moderate

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