December Weather in Alpine, United States

Last updated: June 24, 2025

In December, the average temperature in Alpine, United States hovers around 12°C (54°F). You can expect a minimum of 1°C (35°F) and a cozy maximum of 28°C (82°F). Throughout the month, precipitation totals about 68 mm (2.7 in), typically spread over 5 days, with an average humidity of 74%, creating a pleasantly fresh atmosphere.

December Temperature in Alpine

In December in Alpine, the average temperature is 12°C (54°F), with maximums reaching 28°C (82°F) and minimums dipping as low as 1°C (35°F). This climate makes it an ideal time for travelers to enjoy a mix of mild and warm days while being prepared for cooler evenings.

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

The chart illustrates December temperature patterns in Alpine, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alpine, December typically has an average temperature of 12°C (54°F), with highs reaching up to 28°C (82°F) and lows dropping to around 1°C (35°F).

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

December Precipitation in Alpine

In Alpine in December, the total precipitation amount is 68 mm (2.7 in) over the course of 5 days.

December Precipitation Trends in Alpine

The chart displays monthly precipitation patterns in Alpine, 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 Alpine, December typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 5 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 Alpine

In Alpine in December, humidity is 74%. With an average temperature of 12°C (54°F), this humidity feels like a chilly embrace that can dampen your travel experience, making it essential to dress in layers and prepare for an unexpected drizzle while exploring the sights.

December Average Humidity in Alpine

This chart illustrates the average monthly humidity levels in Alpine, 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 Alpine is approximately 74%, 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 Alpine

In Alpine 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 Alpine for better planning.

Maximum UV Index Levels in Alpine for December

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

Data source: Alpine 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 Alpine Compares to Other Months

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

This table compares monthly weather conditions in Alpine, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (54°F)	70 mm (2.7 inches)	72%	moderate
February Weather	12°C (53°F)	86 mm (3.4 inches)	77%	high
March Weather	12°C (55°F)	71 mm (2.8 inches)	67%	very high
April Weather	15°C (60°F)	28 mm (1.1 inches)	56%	very high
May Weather	17°C (62°F)	27 mm (1.1 inches)	46%	extreme
June Weather	20°C (69°F)	2 mm (0.1 inches)	48%	extreme
July Weather	24°C (75°F)	7 mm (0.3 inches)	46%	extreme
August Weather	24°C (76°F)	4 mm (0.2 inches)	42%	extreme
September Weather	23°C (73°F)	5 mm (0.2 inches)	52%	extreme
October Weather	19°C (67°F)	15 mm (0.6 inches)	58%	very high
November Weather	16°C (61°F)	36 mm (1.4 inches)	66%	moderate
December Weather	12°C (54°F)	68 mm (2.7 inches)	74%	moderate