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December Weather in Blackhawk, United States

Last updated: June 24, 2025

In December, the average temperature in Blackhawk, United States hovers around -1°C (30°F). However, temperatures can vary widely, with lows of -23°C (-9°F) and highs of 22°C (71°F). Expect about 28 mm (1.1 in) of precipitation over approximately 5 days, and humidity levels are typically around 79%.

December Temperature in Blackhawk

In December in Blackhawk, the average temperature is -1°C (30°F), with maximums reaching up to 22°C (71°F) and minimums dropping as low as -23°C (-9°F). Be sure to pack accordingly to enjoy your travels comfortably in this varied climate!

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

The chart illustrates December temperature patterns in Blackhawk, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Blackhawk, December typically has an average temperature of -1°C (30°F), with highs reaching up to 22°C (71°F) and lows dropping to around -23°C (-9°F).
JanFebMarAprMayJunJulAugSepOctNovDec272236425367737062453730
Data source: Temperature data for Blackhawk 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 Blackhawk

In Blackhawk in December, the precipitation amount is 28 mm (1.1 in) over a period of 5 days.

December Precipitation Trends in Blackhawk

The chart displays monthly precipitation patterns in Blackhawk, 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 Blackhawk, December typically receives around 28 mm (1.1 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec1526406910371915139551528
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Blackhawk

In Blackhawk in December, humidity is 79%. With an average temperature of -1°C (30°F), this humidity feels like a biting chill in the air, making outdoor activities uncomfortable and requiring extra layers to stay warm while exploring.

December Average Humidity in Blackhawk

This chart illustrates the average monthly humidity levels in Blackhawk, 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 Blackhawk is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%80%70%70%76%84%85%85%77%73%74%79%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Blackhawk

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

Maximum UV Index Levels in Blackhawk for December

The chart shows the monthly maximum UV Index (UVI) for Blackhawk 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 Blackhawk typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec345891110108532
Data source: Blackhawk 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 Blackhawk Compares to Other Months

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

This table compares monthly weather conditions in Blackhawk, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)15 mm (0.6 inches)77%moderate
February Weather-6°C (22°F)26 mm (1.0 inches)80%moderate
March Weather2°C (36°F)40 mm (1.6 inches)70%moderate
April Weather5°C (42°F)69 mm (2.7 inches)70%very high
May Weather12°C (54°F)103 mm (4.1 inches)76%very high
June Weather20°C (67°F)71 mm (2.8 inches)84%extreme
July Weather23°C (73°F)91 mm (3.6 inches)85%very high
August Weather21°C (70°F)51 mm (2.0 inches)84%very high
September Weather17°C (62°F)39 mm (1.5 inches)77%very high
October Weather7°C (45°F)55 mm (2.2 inches)73%moderate
November Weather3°C (37°F)14 mm (0.6 inches)74%moderate
December Weather-1°C (30°F)28 mm (1.1 inches)79%low

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