nomadseason

December Weather in Jasper, United States

Last updated: June 24, 2025

In Jasper, United States, the average temperature in December hovers around 5°C (42°F). Expect a minimum of -13°C (10°F) and a potential maximum of 24°C (75°F). With an average precipitation of 46 mm (1.8 in) spread over 6 days, the weather exhibits a high humidity level of 87%.

December Temperature in Jasper

In December in Jasper, the average temperature is 5°C (42°F). The maximum can reach 24°C (75°F), and the minimum can be as low as -13°C (10°F). This weather variation makes it essential for travelers to pack layered clothing to comfortably enjoy all that Jasper has to offer.

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

The chart illustrates December temperature patterns in Jasper, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jasper, December typically has an average temperature of 5°C (42°F), with highs reaching up to 24°C (75°F) and lows dropping to around -13°C (10°F).
JanFebMarAprMayJunJulAugSepOctNovDec363850566777807773594742
Data source: Temperature data for Jasper generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Jasper

In Jasper in December, the precipitation amount is 46 mm (1.8 in) over a span of 6 days.

December Precipitation Trends in Jasper

The chart displays monthly precipitation patterns in Jasper, 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 Jasper, December typically receives around 46 mm (1.8 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec78671381321728789114721375746
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Jasper

In Jasper in December humidity is 87%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and travel less inviting as the air becomes heavy and oppressive.

December Average Humidity in Jasper

This chart illustrates the average monthly humidity levels in Jasper, 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 Jasper is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%78%76%78%83%83%78%68%64%70%83%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Jasper

In Jasper 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 Jasper, you can check the information here.

Maximum UV Index Levels in Jasper for December

The chart shows the monthly maximum UV Index (UVI) for Jasper 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 Jasper typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
Data source: Jasper 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 Jasper Compares to Other Months

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

This table compares monthly weather conditions in Jasper, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)78 mm (3.1 inches)81%moderate
February Weather3°C (38°F)67 mm (2.6 inches)78%high
March Weather10°C (50°F)138 mm (5.4 inches)76%high
April Weather14°C (57°F)132 mm (5.2 inches)78%very high
May Weather19°C (67°F)172 mm (6.8 inches)83%very high
June Weather25°C (77°F)87 mm (3.4 inches)83%extreme
July Weather27°C (80°F)89 mm (3.5 inches)78%extreme
August Weather25°C (78°F)114 mm (4.5 inches)68%very high
September Weather23°C (74°F)72 mm (2.8 inches)64%very high
October Weather15°C (60°F)137 mm (5.4 inches)70%high
November Weather8°C (47°F)57 mm (2.2 inches)83%moderate
December Weather5°C (42°F)46 mm (1.8 inches)87%moderate

Compare Jasper's Climate with Cities Worldwide