December Weather in Jonestown, United States

Last updated: June 24, 2025

The average temperature in Jonestown, United States during December is 9°C (49°F). Expect a minimum temperature of -7°C (20°F) and a maximum of 27°C (80°F). With an average precipitation of 146 mm (5.8 in) spread over 10 days, you can anticipate a humid atmosphere with an average humidity level of 88%.

December Temperature in Jonestown

In December in Jonestown, the average temperature is 9°C (49°F). The maximum can reach 27°C (80°F), while the minimum can drop as low as -7°C (20°F). It's advisable to pack layers and prepare for significant temperature fluctuations when traveling to Jonestown during this time.

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

The chart illustrates December temperature patterns in Jonestown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jonestown, December typically has an average temperature of 9°C (49°F), with highs reaching up to 27°C (80°F) and lows dropping to around -7°C (20°F).

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

December Precipitation in Jonestown

In Jonestown in December, the total precipitation amount is 146 mm (5.8 in) over the course of 10 days.

December Precipitation Trends in Jonestown

The chart displays monthly precipitation patterns in Jonestown, 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 Jonestown, December typically receives around 146 mm (5.8 inches) of precipitation spread over approximately 10 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 Jonestown

In Jonestown in December, humidity is 88%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and requiring extra layers to stay warm and dry.

December Average Humidity in Jonestown

This chart illustrates the average monthly humidity levels in Jonestown, 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 Jonestown is approximately 88%, 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 Jonestown

In Jonestown in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Jonestown for better planning.

Maximum UV Index Levels in Jonestown for December

The chart shows the monthly maximum UV Index (UVI) for Jonestown 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 Jonestown typically reaches 4, which falls under the moderate exposure category.

Data source: Jonestown 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 Jonestown Compares to Other Months

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

This table compares monthly weather conditions in Jonestown, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	112 mm (4.4 inches)	84%	moderate
February Weather	9°C (48°F)	199 mm (7.8 inches)	83%	high
March Weather	14°C (58°F)	168 mm (6.6 inches)	81%	very high
April Weather	17°C (63°F)	146 mm (5.8 inches)	81%	very high
May Weather	23°C (73°F)	129 mm (5.1 inches)	83%	extreme
June Weather	26°C (79°F)	132 mm (5.2 inches)	83%	extreme
July Weather	28°C (82°F)	123 mm (4.8 inches)	81%	extreme
August Weather	27°C (81°F)	128 mm (5.0 inches)	74%	very high
September Weather	25°C (77°F)	102 mm (4.0 inches)	71%	very high
October Weather	19°C (66°F)	108 mm (4.2 inches)	76%	high
November Weather	11°C (52°F)	83 mm (3.3 inches)	84%	high
December Weather	9°C (49°F)	146 mm (5.8 inches)	88%	moderate