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December Weather in Catheys Valley, United States

Last updated: June 24, 2025

In Catheys Valley, United States, the average temperature in December hovers around 8°C (47°F), with a minimum dipping to -2°C (29°F) and a maximum reaching 23°C (74°F). Expect 123 mm (4.9 in) of precipitation spread over 9 days, coupled with an average humidity level of 80%. Stay prepared for a mix of chilly and mild weather this month!

December Temperature in Catheys Valley

In December in Catheys Valley, the average temperature is 8°C (47°F), with maximums reaching up to 23°C (74°F) and minimums dropping as low as -2°C (29°F). Travelers should be prepared for a wide range of temperatures during this time.

December Weather in Catheys Valley: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Catheys Valley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Catheys Valley, December typically has an average temperature of 8°C (47°F), with highs reaching up to 23°C (74°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec474851586475828174635446
Data source: Temperature data for Catheys Valley 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 Catheys Valley

In Catheys Valley in December, the precipitation amount is 123 mm (4.9 in) over a period of 9 days.

December Precipitation Trends in Catheys Valley

The chart displays monthly precipitation patterns in Catheys Valley, 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 Catheys Valley, December typically receives around 123 mm (4.9 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec169157181674120123164123
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Catheys Valley

In Catheys Valley in December, humidity is 80%. With an average temperature of 8°C (47°F), this humidity feels like you're walking through a heavy mist, making your clothes cling to your skin and every step prone to a shiver, which can be quite uncomfortable for traveling.

December Average Humidity in Catheys Valley

This chart illustrates the average monthly humidity levels in Catheys Valley, 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 Catheys Valley is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%84%82%78%71%64%59%54%55%62%78%80%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Catheys Valley

In Catheys Valley 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 Catheys Valley, you can check the information here.

Maximum UV Index Levels in Catheys Valley for December

The chart shows the monthly maximum UV Index (UVI) for Catheys Valley 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 Catheys Valley typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec4589111211119753
Data source: Catheys Valley 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 Catheys Valley Compares to Other Months

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

This table compares monthly weather conditions in Catheys Valley, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)168 mm (6.6 inches)82%moderate
February Weather9°C (48°F)157 mm (6.2 inches)84%moderate
March Weather11°C (51°F)181 mm (7.1 inches)82%very high
April Weather14°C (58°F)67 mm (2.6 inches)78%very high
May Weather18°C (64°F)41 mm (1.6 inches)71%extreme
June Weather24°C (75°F)2 mm (0.1 inches)64%extreme
July Weather28°C (82°F)0 mm (0.0 inches)58%extreme
August Weather27°C (81°F)1 mm (0.0 inches)54%extreme
September Weather23°C (74°F)2 mm (0.1 inches)55%very high
October Weather17°C (63°F)31 mm (1.2 inches)62%high
November Weather12°C (54°F)64 mm (2.5 inches)78%moderate
December Weather8°C (47°F)123 mm (4.9 inches)80%moderate

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