December Weather in Guymon, United States

Last updated: June 24, 2025

In Guymon, United States, the average temperature in December hovers around 4°C (39°F). You can expect a temperature range that dips to a chilly -13°C (10°F) and peaks at a mild 25°C (77°F). Precipitation is relatively light, averaging 18 mm (0.7 in) over just 2 days, while the average humidity sits at a comfortable 83%.

December Temperature in Guymon

In December in Guymon, the average temperature is 4°C (39°F). Maximum temperatures can reach 25°C (77°F), while minimum temperatures can drop as low as -13°C (10°F). Be prepared for a wide range of temperatures if you're planning to travel during this time.

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

The chart illustrates December temperature patterns in Guymon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Guymon, December typically has an average temperature of 4°C (39°F), with highs reaching up to 25°C (77°F) and lows dropping to around -13°C (10°F).

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

December Precipitation in Guymon

In Guymon in December, the precipitation amount is 18 mm (0.7 in) over the course of 2 days.

December Precipitation Trends in Guymon

The chart displays monthly precipitation patterns in Guymon, 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 Guymon, December typically receives around 18 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.

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Millimeters (mm) Inches (in)

December Humidity in Guymon

In Guymon in December, humidity is 83%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that penetrates your clothing, making outdoor activities feel brisk and uncomfortable for traveling.

December Average Humidity in Guymon

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

In Guymon 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 Guymon, you can check the information here.

Maximum UV Index Levels in Guymon for December

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

Data source: Guymon 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 Guymon Compares to Other Months

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

This table compares monthly weather conditions in Guymon, 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)	17 mm (0.7 inches)	74%	moderate
February Weather	3°C (37°F)	12 mm (0.5 inches)	77%	high
March Weather	9°C (49°F)	45 mm (1.8 inches)	65%	very high
April Weather	13°C (56°F)	45 mm (1.8 inches)	67%	very high
May Weather	19°C (66°F)	80 mm (3.1 inches)	81%	extreme
June Weather	25°C (77°F)	43 mm (1.7 inches)	82%	extreme
July Weather	27°C (81°F)	41 mm (1.6 inches)	82%	extreme
August Weather	26°C (78°F)	49 mm (1.9 inches)	84%	extreme
September Weather	23°C (73°F)	27 mm (1.1 inches)	79%	very high
October Weather	14°C (58°F)	55 mm (2.2 inches)	75%	high
November Weather	8°C (47°F)	9 mm (0.3 inches)	79%	moderate
December Weather	4°C (39°F)	18 mm (0.7 inches)	83%	moderate