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December Weather in Boonville, United States

Last updated: June 24, 2025

In Boonville, United States, the average temperature in December hovers around 4°C (39°F). Expect a wide range of temperatures, with a minimum of -17°C (2°F) and a maximum of 25°C (76°F). Over the month, you can anticipate 36 mm (1.4 in) of precipitation spread across approximately 5 days, with average humidity levels reaching a comfortable 86%.

December Temperature in Boonville

In December in Boonville, the average temperature is 4°C (39°F). The maximum can reach 25°C (76°F) and the minimum can be as low as -17°C (2°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack both warm and cooler clothing to fully enjoy their visit.

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 4°C (39°F), with highs reaching up to 25°C (76°F) and lows dropping to around -17°C (2°F).
JanFebMarAprMayJunJulAugSepOctNovDec323447556777807772584539
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 36 mm (1.4 in) over the course of 5 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 36 mm (1.4 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec6658114114196125108111651105136
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 86%. With an average temperature of 4°C (39°F), this humidity feels like a chilly mist enveloping you, making it essential to bundle up while exploring, as each breath comes with a damp chill that can be quite refreshing yet starkly invigorating for travelers.

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 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%78%75%77%82%83%81%78%72%72%84%86%
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.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111109643
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 Weather0°C (32°F)66 mm (2.6 inches)80%moderate
February Weather1°C (34°F)58 mm (2.3 inches)78%moderate
March Weather8°C (47°F)114 mm (4.5 inches)75%high
April Weather13°C (55°F)114 mm (4.5 inches)77%very high
May Weather19°C (67°F)196 mm (7.7 inches)82%very high
June Weather25°C (77°F)125 mm (4.9 inches)83%extreme
July Weather27°C (80°F)108 mm (4.2 inches)81%extreme
August Weather25°C (77°F)111 mm (4.4 inches)78%very high
September Weather22°C (73°F)65 mm (2.5 inches)72%very high
October Weather14°C (58°F)110 mm (4.3 inches)72%high
November Weather7°C (45°F)51 mm (2.0 inches)84%moderate
December Weather4°C (39°F)36 mm (1.4 inches)86%moderate

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