December Weather in Booker, United States

Last updated: June 24, 2025

In Booker, United States, the average temperature in December hovers around 4°C (40°F). Expect minimums plunging to -12°C (10°F) and maximums soaring up to 25°C (78°F). Throughout the month, you'll encounter 28 mm (1.1 in) of precipitation spread over just 2 days, accompanied by a notable average humidity of 83%.

December Temperature in Booker

In December in Booker, the average temperature is 4°C (40°F). Maximum temperatures can reach 25°C (78°F), while minimums can drop as low as -12°C (10°F). Be prepared for a wide range of temperatures during your travels to Booker in December.

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

The chart illustrates December temperature patterns in Booker, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Booker, December typically has an average temperature of 4°C (40°F), with highs reaching up to 25°C (78°F) and lows dropping to around -12°C (10°F).

Data source: Temperature data for Booker generated using information from the Copernicus Climate Change Service.

December Precipitation in Booker

In Booker in December, the total precipitation amount is 28 mm (1.1 in) over the course of 2 days.

December Precipitation Trends in Booker

The chart displays monthly precipitation patterns in Booker, 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 Booker, December typically receives around 28 mm (1.1 inches) of precipitation spread over approximately 2 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Booker

In Booker in December humidity is 83%. With an average temperature of 4°C (40°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and requiring you to bundle up while bracing against the heavy, cold air.

December Average Humidity in Booker

This chart illustrates the average monthly humidity levels in Booker, 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 Booker is approximately 83%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Booker

In Booker 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 Booker, you can check the information here.

Maximum UV Index Levels in Booker for December

The chart shows the monthly maximum UV Index (UVI) for Booker 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 Booker typically reaches 3, which falls under the moderate exposure category.

Data source: Booker 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 Booker Compares to Other Months

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

This table compares monthly weather conditions in Booker, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	21 mm (0.8 inches)	74%	moderate
February Weather	2°C (37°F)	12 mm (0.5 inches)	77%	high
March Weather	9°C (49°F)	60 mm (2.4 inches)	65%	very high
April Weather	13°C (56°F)	49 mm (1.9 inches)	67%	very high
May Weather	19°C (66°F)	103 mm (4.1 inches)	81%	extreme
June Weather	25°C (77°F)	55 mm (2.2 inches)	82%	extreme
July Weather	27°C (81°F)	44 mm (1.7 inches)	82%	extreme
August Weather	26°C (78°F)	53 mm (2.1 inches)	84%	extreme
September Weather	23°C (73°F)	38 mm (1.5 inches)	79%	very high
October Weather	14°C (58°F)	62 mm (2.4 inches)	75%	high
November Weather	8°C (47°F)	12 mm (0.5 inches)	79%	moderate
December Weather	4°C (40°F)	28 mm (1.1 inches)	83%	moderate