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December Weather in Arcadia, United States

Last updated: June 24, 2025

In December, the average temperature in Arcadia, United States hovers around -4°C (26°F), with temperatures dipping as low as -29°C (-20°F) and soaring to a maximum of 17°C (63°F). During this month, expect about 45 mm (1.8 in) of precipitation spread over 7 days, along with a relatively high average humidity of 85%. Prepare accordingly for a brisk and damp atmosphere!

December Temperature in Arcadia

In December in Arcadia, the average temperature is -4°C (26°F). The maximum can reach 17°C (63°F), while the minimum can drop as low as -29°C (-20°F). Travelers should be prepared for a wide range of temperatures and dress accordingly.

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

The chart illustrates December temperature patterns in Arcadia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arcadia, December typically has an average temperature of -4°C (26°F), with highs reaching up to 17°C (63°F) and lows dropping to around -29°C (-20°F).
JanFebMarAprMayJunJulAugSepOctNovDec181935445970737064493425
Data source: Temperature data for Arcadia 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 Arcadia

In Arcadia in December, the precipitation amount is 45 mm (1.8 in) spread over a duration of 7 days.

December Precipitation Trends in Arcadia

The chart displays monthly precipitation patterns in Arcadia, 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 Arcadia, December typically receives around 45 mm (1.8 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec334856941421551021411131165345
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Arcadia

In Arcadia in December humidity is 85%. With an average temperature of -4°C (26°F), this humidity feels like a biting chill that seeps through your layers, making travel uncomfortable and urging you to seek warmth quickly.

December Average Humidity in Arcadia

This chart illustrates the average monthly humidity levels in Arcadia, 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 Arcadia is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%89%86%85%79%80%80%78%80%84%89%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Arcadia

In Arcadia 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 Arcadia, you can visit Hourly UV Index in Arcadia.

Maximum UV Index Levels in Arcadia for December

The chart shows the monthly maximum UV Index (UVI) for Arcadia 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 Arcadia typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458810997532
Data source: Arcadia 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 Arcadia Compares to Other Months

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

This table compares monthly weather conditions in Arcadia, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (19°F)33 mm (1.3 inches)88%low
February Weather-7°C (20°F)48 mm (1.9 inches)89%moderate
March Weather1°C (35°F)56 mm (2.2 inches)86%moderate
April Weather7°C (45°F)94 mm (3.7 inches)85%very high
May Weather15°C (59°F)142 mm (5.6 inches)79%very high
June Weather21°C (70°F)155 mm (6.1 inches)80%very high
July Weather23°C (74°F)102 mm (4.0 inches)80%very high
August Weather21°C (70°F)141 mm (5.5 inches)78%very high
September Weather18°C (64°F)113 mm (4.4 inches)80%high
October Weather9°C (49°F)116 mm (4.6 inches)84%moderate
November Weather1°C (35°F)53 mm (2.1 inches)89%moderate
December Weather-4°C (26°F)45 mm (1.8 inches)85%low

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