Last updated: June 24, 2025
In Jasper, United States, the average temperature in December hovers around 14°C (57°F), with a range that can swing from a chilly -4°C (24°F) to a warm 28°C (83°F). Expect about 117 mm (4.6 in) of precipitation spread across 7 days, making the month quite wet. Plus, with an average humidity of 88%, you might want to prepare for a damp atmosphere!
In December in Jasper, the average temperature is 14°C (57°F), with maximums reaching up to 28°C (83°F) and minimums dropping as low as -4°C (24°F). This range indicates that travelers should be prepared for both warm and cool weather, making it essential to pack accordingly for their trip.
In Jasper in December, the precipitation amount is 117 mm (4.6 in) accumulated over a period of 7 days.
In Jasper in December humidity is 88%. With an average temperature of 14°C (57°F), this humidity feels like a thick blanket enveloping you, making every step feel heavier and giving a sense of stickiness that can drain your energy quickly while exploring.
In Jasper in December, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Jasper.
UV Risk Categories
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.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 12°C (54°F) | 59 mm (2.3 inches) | 85% | moderate |
| February Weather | 16°C (60°F) | 80 mm (3.1 inches) | 82% | very high |
| March Weather | 18°C (64°F) | 42 mm (1.6 inches) | 80% | very high |
| April Weather | 21°C (69°F) | 75 mm (2.9 inches) | 76% | very high |
| May Weather | 25°C (76°F) | 72 mm (2.8 inches) | 73% | extreme |
| June Weather | 27°C (80°F) | 147 mm (5.8 inches) | 74% | extreme |
| July Weather | 27°C (81°F) | 156 mm (6.2 inches) | 80% | extreme |
| August Weather | 27°C (81°F) | 154 mm (6.0 inches) | 79% | extreme |
| September Weather | 26°C (80°F) | 124 mm (4.9 inches) | 83% | very high |
| October Weather | 23°C (74°F) | 58 mm (2.3 inches) | 77% | very high |
| November Weather | 16°C (61°F) | 57 mm (2.3 inches) | 84% | high |
| December Weather | 14°C (57°F) | 117 mm (4.6 inches) | 88% | moderate |