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December Weather in Blackwell, United States

Last updated: June 24, 2025

In December, the average temperature in Blackwell, United States hovers around 5°C (42°F), with a minimum drop to -11°C (12°F) and a maximum rise to 26°C (79°F). Expect 29 mm (1.2 in) of precipitation spread over approximately 2 days, and be prepared for high humidity levels, averaging at 85%.

December Temperature in Blackwell

In December in Blackwell, the average temperature is 5°C (42°F). Maximums can reach 26°C (79°F), while minimums can drop as low as -11°C (12°F). Travelers should be prepared for a wide range of temperatures to fully enjoy their visit.

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

The chart illustrates December temperature patterns in Blackwell, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Blackwell, December typically has an average temperature of 5°C (42°F), with highs reaching up to 26°C (79°F) and lows dropping to around -11°C (12°F).
JanFebMarAprMayJunJulAugSepOctNovDec373852586879828075604841
Data source: Temperature data for Blackwell 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 Blackwell

In Blackwell in December, the precipitation amount is 29 mm (1.2 in) over a period of 2 days.

December Precipitation Trends in Blackwell

The chart displays monthly precipitation patterns in Blackwell, 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 Blackwell, December typically receives around 29 mm (1.2 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec493690921701066191831242829
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Blackwell

In Blackwell in December, humidity is 85%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities uncomfortable and requiring extra layers to stay warm while exploring.

December Average Humidity in Blackwell

This chart illustrates the average monthly humidity levels in Blackwell, 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 Blackwell is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%76%71%74%83%83%81%73%67%72%82%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Blackwell

In Blackwell in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Blackwell, you can check the information here.

Maximum UV Index Levels in Blackwell for December

The chart shows the monthly maximum UV Index (UVI) for Blackwell 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 Blackwell typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
Data source: Blackwell 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 Blackwell Compares to Other Months

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

This table compares monthly weather conditions in Blackwell, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)49 mm (1.9 inches)77%moderate
February Weather3°C (38°F)36 mm (1.4 inches)76%high
March Weather11°C (52°F)90 mm (3.5 inches)71%high
April Weather15°C (58°F)92 mm (3.6 inches)73%very high
May Weather20°C (69°F)169 mm (6.7 inches)83%very high
June Weather26°C (79°F)106 mm (4.2 inches)83%extreme
July Weather28°C (83°F)61 mm (2.4 inches)81%extreme
August Weather27°C (80°F)91 mm (3.6 inches)73%very high
September Weather24°C (76°F)83 mm (3.3 inches)67%very high
October Weather16°C (60°F)124 mm (4.9 inches)72%high
November Weather9°C (48°F)28 mm (1.1 inches)82%moderate
December Weather5°C (42°F)29 mm (1.2 inches)85%moderate

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