December Weather in Spearman, United States

Last updated: June 24, 2025

In Spearman, United States, the average temperature in December hovers around 4°C (40°F), with extremes ranging from a chilly -12°C (11°F) to a surprisingly warm 25°C (77°F). Visitors can expect a moderate precipitation amount of 17 mm (0.7 in) over about 2 days, while the atmosphere stays humid with an average humidity of 83%.

December Temperature in Spearman

In December in Spearman, the average temperature is 4°C (40°F). Maximum temperatures can reach 25°C (77°F), while the minimum can drop as low as -12°C (11°F). Be prepared for a wide range of weather conditions when traveling to Spearman this time of year.

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

The chart illustrates December temperature patterns in Spearman, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Spearman, December typically has an average temperature of 4°C (40°F), with highs reaching up to 25°C (77°F) and lows dropping to around -12°C (11°F).

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

December Precipitation in Spearman

In Spearman in December, the precipitation amount is 17 mm (0.7 in) over a span of 2 days.

December Precipitation Trends in Spearman

The chart displays monthly precipitation patterns in Spearman, 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 Spearman, December typically receives around 17 mm (0.7 inches) of precipitation spread over approximately 2 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

December Humidity in Spearman

In Spearman 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 Spearman

This chart illustrates the average monthly humidity levels in Spearman, 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 Spearman 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 Spearman

In Spearman 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 Spearman, you can check the information here.

Maximum UV Index Levels in Spearman for December

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

Data source: Spearman 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 Spearman Compares to Other Months

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

This table compares monthly weather conditions in Spearman, 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 (37°F)	16 mm (0.6 inches)	74%	moderate
February Weather	3°C (38°F)	11 mm (0.4 inches)	77%	high
March Weather	10°C (50°F)	48 mm (1.9 inches)	65%	very high
April Weather	13°C (56°F)	46 mm (1.8 inches)	67%	very high
May Weather	19°C (66°F)	88 mm (3.5 inches)	81%	extreme
June Weather	25°C (77°F)	53 mm (2.1 inches)	82%	extreme
July Weather	27°C (80°F)	45 mm (1.8 inches)	82%	extreme
August Weather	26°C (78°F)	59 mm (2.3 inches)	84%	extreme
September Weather	23°C (73°F)	30 mm (1.2 inches)	79%	very high
October Weather	14°C (58°F)	55 mm (2.2 inches)	75%	high
November Weather	8°C (47°F)	12 mm (0.5 inches)	79%	moderate
December Weather	4°C (40°F)	17 mm (0.7 inches)	83%	moderate