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December Weather in White Swan, United States

Last updated: June 24, 2025

The average temperature in White Swan, United States during December hovers around 1°C (34°F). While you might experience those chilly moments with a minimum of -11°C (13°F), the temperature can occasionally rise to a maximum of 18°C (65°F). Expect precipitation of about 87 mm (3.4 in) spread over 12 days and enjoy an average humidity level of 88%.

December Temperature in White Swan

In December in White Swan, the average temperature is 1°C (34°F). The maximum can reach 18°C (65°F), while the minimum can drop as low as -11°C (13°F). Be prepared for a wide range of temperatures during your travels, so pack accordingly!

December Weather in White Swan: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in White Swan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In White Swan, 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 -11°C (13°F).
JanFebMarAprMayJunJulAugSepOctNovDec333341495967747363504034
Data source: Temperature data for White Swan 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 White Swan

In White Swan in December, the precipitation amount is 87 mm (3.4 in) over the course of 12 days.

December Precipitation Trends in White Swan

The chart displays monthly precipitation patterns in White Swan, 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 White Swan, December typically receives around 87 mm (3.4 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec889341311581415496287
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in White Swan

In White Swan in December humidity is 88%. With an average temperature of 1°C (34°F), this humidity feels like a chilling embrace, making travel feel damp and brisk, where every breath carries a crisp bite, and the air clings to your skin, urging you to seek warmth and comfort.

December Average Humidity in White Swan

This chart illustrates the average monthly humidity levels in White Swan, 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 White Swan is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%87%84%81%82%79%63%62%83%89%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in White Swan

In White Swan 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 White Swan, you can visit Hourly UV Index in White Swan.

Maximum UV Index Levels in White Swan for December

The chart shows the monthly maximum UV Index (UVI) for White Swan 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 White Swan typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24679101098532
Data source: White Swan 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 White Swan Compares to Other Months

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

This table compares monthly weather conditions in White Swan, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)88 mm (3.5 inches)86%low
February Weather1°C (33°F)93 mm (3.6 inches)86%moderate
March Weather5°C (41°F)41 mm (1.6 inches)87%high
April Weather9°C (49°F)31 mm (1.2 inches)84%high
May Weather15°C (60°F)15 mm (0.6 inches)81%very high
June Weather20°C (67°F)8 mm (0.3 inches)82%very high
July Weather24°C (75°F)1 mm (0.0 inches)79%very high
August Weather23°C (74°F)4 mm (0.1 inches)63%very high
September Weather17°C (64°F)15 mm (0.6 inches)62%very high
October Weather10°C (50°F)49 mm (1.9 inches)83%moderate
November Weather4°C (40°F)62 mm (2.4 inches)89%moderate
December Weather1°C (34°F)87 mm (3.4 inches)88%low

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