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December Weather in Rock Point, United States

Last updated: June 24, 2025

In December, the average temperature in Rock Point, United States hovers around 1°C (34°F). This chilly climate can dip as low as -14°C (6°F) and rise to a maximum of 18°C (65°F). Expect about 18 mm (0.7 in) of precipitation over 5 days, accompanied by an average humidity of 85%. Prepare for a wet and cool month with plenty of layers!

December Temperature in Rock Point

In December, in Rock Point, the average temperature is 1°C (34°F). The maximum can reach 18°C (65°F), while the minimum can drop as low as -14°C (6°F). Be prepared for a wide range of temperatures and pack accordingly if you plan to visit during this time.

December Weather in Rock Point: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Rock Point, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rock Point, December typically has an average temperature of 1°C (34°F), with highs reaching up to 18°C (65°F) and lows dropping to around -14°C (6°F).
JanFebMarAprMayJunJulAugSepOctNovDec343948576578828071554434
Data source: Temperature data for Rock Point 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 Rock Point

In Rock Point in December, the precipitation amount is 18 mm (0.7 in) spread over a duration of 5 days.

December Precipitation Trends in Rock Point

The chart displays monthly precipitation patterns in Rock Point, 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 Rock Point, December typically receives around 18 mm (0.7 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec181929810285920818
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Rock Point

In Rock Point in December, humidity is 85%. With an average temperature of 1°C (34°F), this humidity feels like a biting chill that seeps into your bones, making outdoor travel uncomfortable and urging you to seek warmth indoors rather than explore the surroundings.

December Average Humidity in Rock Point

This chart illustrates the average monthly humidity levels in Rock Point, 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 Rock Point is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%76%69%53%40%36%44%59%74%83%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Rock Point

In Rock Point in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Rock Point for better planning.

Maximum UV Index Levels in Rock Point for December

The chart shows the monthly maximum UV Index (UVI) for Rock Point 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 Rock Point typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469111213131111854
Data source: Rock Point 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 Rock Point Compares to Other Months

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

This table compares monthly weather conditions in Rock Point, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)18 mm (0.7 inches)85%moderate
February Weather4°C (40°F)19 mm (0.8 inches)86%high
March Weather9°C (48°F)29 mm (1.1 inches)76%very high
April Weather14°C (57°F)8 mm (0.3 inches)69%extreme
May Weather18°C (66°F)10 mm (0.4 inches)53%extreme
June Weather25°C (78°F)2 mm (0.1 inches)40%extreme
July Weather28°C (82°F)8 mm (0.3 inches)36%extreme
August Weather27°C (81°F)4 mm (0.2 inches)44%extreme
September Weather22°C (71°F)9 mm (0.3 inches)59%extreme
October Weather13°C (55°F)19 mm (0.8 inches)74%very high
November Weather7°C (44°F)8 mm (0.3 inches)83%moderate
December Weather1°C (34°F)18 mm (0.7 inches)85%moderate

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