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December Weather in Hillside Lake, United States

Last updated: June 24, 2025

In Hillside Lake, United States, the average temperature in December hovers around 1°C (34°F). Expect a minimum plunge to -15°C (5°F) and a maximum rise to 16°C (62°F). During this month, you can anticipate about 103 mm (4.1 in) of precipitation spread over 11 days, accompanied by a notable average humidity of 80%. Stay prepared for a chilly, damp atmosphere!

December Temperature in Hillside Lake

In December in Hillside Lake, the average temperature is 1°C (34°F), with maximums reaching 16°C (62°F) and minimums plunging down to -15°C (5°F). This chilly weather makes it essential for travelers to pack warm clothing and be prepared for a significant temperature range.

December Weather in Hillside Lake: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Hillside Lake, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hillside Lake, December typically has an average temperature of 1°C (34°F), with highs reaching up to 16°C (62°F) and lows dropping to around -15°C (5°F).
JanFebMarAprMayJunJulAugSepOctNovDec303338495969747366564234
Data source: Temperature data for Hillside Lake 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 Hillside Lake

In Hillside Lake in December, the precipitation amount is 103 mm (4.1 in) spread over 11 days.

December Precipitation Trends in Hillside Lake

The chart displays monthly precipitation patterns in Hillside Lake, 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 Hillside Lake, December typically receives around 103 mm (4.1 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec6894871141159613111812213890104
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Hillside Lake

In Hillside Lake in December, humidity is 80%. With an average temperature of 1°C (34°F), this humidity feels like a damp chill that seeps through your layers, making outdoor activities uncomfortable and potentially discouraging for travelers.

December Average Humidity in Hillside Lake

This chart illustrates the average monthly humidity levels in Hillside Lake, 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 Hillside Lake is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Hillside Lake

In Hillside Lake 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 Hillside Lake, you can visit Hourly UV Index in Hillside Lake.

Maximum UV Index Levels in Hillside Lake for December

The chart shows the monthly maximum UV Index (UVI) for Hillside Lake 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 Hillside Lake typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356810101098642
Data source: Hillside Lake 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 Hillside Lake Compares to Other Months

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

This table compares monthly weather conditions in Hillside Lake, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)68 mm (2.7 inches)84%moderate
February Weather0°C (33°F)94 mm (3.7 inches)82%moderate
March Weather4°C (39°F)87 mm (3.4 inches)81%high
April Weather9°C (49°F)114 mm (4.5 inches)78%very high
May Weather15°C (60°F)115 mm (4.5 inches)69%very high
June Weather20°C (69°F)96 mm (3.8 inches)69%very high
July Weather24°C (75°F)131 mm (5.1 inches)62%very high
August Weather23°C (73°F)118 mm (4.7 inches)65%very high
September Weather19°C (66°F)121 mm (4.8 inches)68%very high
October Weather13°C (56°F)138 mm (5.4 inches)74%high
November Weather6°C (42°F)90 mm (3.5 inches)82%moderate
December Weather1°C (34°F)103 mm (4.1 inches)80%low

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