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December Weather in Boonville, United States

Last updated: June 24, 2025

In December, the average temperature in Boonville, United States hovers around 8°C (46°F). During this time, you can expect temperatures to range from a chilly -1°C (30°F) to a pleasant 22°C (72°F). With 109 mm (4.3 in) of precipitation spread over 10 days, ensure you're prepared for some wet weather. On top of that, the average humidity sits at a muggy 84%, making it feel a bit cooler than it is.

December Temperature in Boonville

In December in Boonville, the average temperature is 8°C (46°F). The maximum can reach 22°C (72°F), while the minimum can drop as low as -1°C (30°F). This variation makes it advisable for travelers to pack layers to stay comfortable throughout the day.

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

The chart illustrates December temperature patterns in Boonville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Boonville, December typically has an average temperature of 8°C (46°F), with highs reaching up to 22°C (72°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec474849545967717167605146
Data source: Temperature data for Boonville 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 Boonville

In Boonville in December, the precipitation amount is 109 mm (4.3 in) spread over 10 days.

December Precipitation Trends in Boonville

The chart displays monthly precipitation patterns in Boonville, 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 Boonville, December typically receives around 109 mm (4.3 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec164168126674521145181109
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Boonville

In Boonville in December humidity is 84%. With an average temperature of 8°C (46°F), this humidity feels like a chilly mist wrapping around you, making outdoor exploration cumbersome and layering your clothing a necessity for comfort.

December Average Humidity in Boonville

This chart illustrates the average monthly humidity levels in Boonville, 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 Boonville is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%83%80%80%76%70%66%68%72%84%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Boonville

In Boonville 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 Boonville, you can check the information here.

Maximum UV Index Levels in Boonville for December

The chart shows the monthly maximum UV Index (UVI) for Boonville 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 Boonville typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3578111111109743
Data source: Boonville 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 Boonville Compares to Other Months

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

This table compares monthly weather conditions in Boonville, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)164 mm (6.4 inches)86%moderate
February Weather9°C (48°F)168 mm (6.6 inches)84%moderate
March Weather10°C (49°F)126 mm (4.9 inches)83%high
April Weather12°C (54°F)67 mm (2.6 inches)80%very high
May Weather15°C (59°F)45 mm (1.8 inches)80%extreme
June Weather19°C (67°F)2 mm (0.1 inches)76%extreme
July Weather22°C (71°F)1 mm (0.0 inches)70%extreme
August Weather22°C (71°F)1 mm (0.0 inches)66%very high
September Weather20°C (68°F)4 mm (0.2 inches)68%very high
October Weather16°C (61°F)51 mm (2.0 inches)72%high
November Weather11°C (52°F)81 mm (3.2 inches)84%moderate
December Weather8°C (46°F)109 mm (4.3 inches)84%moderate

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