Last updated: June 24, 2025
In December, the average temperature in Jasper, United States hovers around 13°C (55°F), with extremes ranging from a chilly 0°C (32°F) to a warm 28°C (83°F). Expect 133 mm (5.3 in) of precipitation spread over approximately 10 days, contributing to a high average humidity of 88%. Prepare for a month that beautifully blends crisp air and occasional showers!
In December in Jasper, the average temperature is 13°C (55°F). The maximum can reach 28°C (83°F), while the minimum can drop as low as 0°C (32°F). This range of temperatures makes it advisable for travelers to pack layers to comfortably enjoy both warm and cooler moments during their visit.
In Jasper in December, the precipitation amount is 133 mm (5.3 in) over a span of 10 days.
In Jasper in December humidity is 88%. With an average temperature of 13°C (55°F), this humidity feels like a damp chill that clings to your skin, making it essential to dress in layers while exploring, as the moisture in the air can lead to a rather uncomfortable experience for traveling.
In Jasper 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 Jasper for better planning.
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 | 11°C (52°F) | 107 mm (4.2 inches) | 81% | moderate |
| February Weather | 13°C (55°F) | 114 mm (4.5 inches) | 81% | very high |
| March Weather | 17°C (64°F) | 101 mm (4.0 inches) | 79% | very high |
| April Weather | 20°C (68°F) | 132 mm (5.2 inches) | 80% | very high |
| May Weather | 24°C (76°F) | 184 mm (7.2 inches) | 81% | extreme |
| June Weather | 27°C (81°F) | 150 mm (5.9 inches) | 76% | extreme |
| July Weather | 28°C (83°F) | 98 mm (3.8 inches) | 73% | extreme |
| August Weather | 28°C (83°F) | 183 mm (7.2 inches) | 71% | extreme |
| September Weather | 26°C (80°F) | 160 mm (6.3 inches) | 72% | very high |
| October Weather | 21°C (71°F) | 144 mm (5.7 inches) | 73% | very high |
| November Weather | 15°C (59°F) | 68 mm (2.7 inches) | 83% | high |
| December Weather | 13°C (55°F) | 133 mm (5.3 inches) | 88% | moderate |