Last updated: June 24, 2025
In December, the average temperature in Saint Joseph, United States hovers around 2°C (36°F), providing a chilly backdrop for the season. Temperatures can fluctuate dramatically, with a minimum of -20°C (-4°F) and a maximum of 23°C (74°F). Expect a total precipitation of 37 mm (1.4 in) over 3 days, contributing to the region's average humidity of 86%. Whether you’re braving the cold or enjoying the warmth, Saint Joseph offers a unique experience this month!
In December in Saint Joseph, the average temperature is 2°C (36°F), with maximums reaching up to 23°C (74°F) and minimums dropping as low as -20°C (-4°F). Be prepared for a wide range of temperatures when traveling to Saint Joseph during this month.
In Saint Joseph in December, the precipitation amount is 37 mm (1.4 in) over a span of 3 days.
In Saint Joseph in December, humidity is 86%. With an average temperature of 2°C (36°F), this humidity feels like a biting chill that clings to your skin, making outdoor exploration uncomfortable and dampening any enthusiasm for travel.
In Saint Joseph 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 Saint Joseph, you can check the information here.
UV Risk Categories
Weather in Saint Joseph varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Saint Joseph, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (29°F) | 46 mm (1.8 inches) | 80% | moderate |
| February Weather | -1°C (31°F) | 34 mm (1.3 inches) | 78% | moderate |
| March Weather | 7°C (45°F) | 91 mm (3.6 inches) | 75% | high |
| April Weather | 12°C (53°F) | 82 mm (3.2 inches) | 77% | very high |
| May Weather | 18°C (65°F) | 180 mm (7.1 inches) | 82% | very high |
| June Weather | 25°C (77°F) | 129 mm (5.1 inches) | 83% | extreme |
| July Weather | 26°C (79°F) | 97 mm (3.8 inches) | 81% | extreme |
| August Weather | 25°C (76°F) | 106 mm (4.2 inches) | 78% | very high |
| September Weather | 22°C (71°F) | 85 mm (3.4 inches) | 72% | very high |
| October Weather | 13°C (56°F) | 132 mm (5.2 inches) | 72% | high |
| November Weather | 6°C (43°F) | 47 mm (1.8 inches) | 84% | moderate |
| December Weather | 2°C (36°F) | 37 mm (1.4 inches) | 86% | moderate |