Last updated: June 24, 2025
In December, the average temperature in Mount Gay-Shamrock, United States hovers around 5°C (41°F). Expect chilly days with temperatures dipping as low as -13°C (8°F), and the occasional warmth reaching up to 20°C (69°F). With 129 mm (5.1 in) of precipitation spread over 12 days, you'll want to be prepared for some rain. Not to mention, the average humidity sits at a high 86%, creating a crisp and damp atmosphere.
In December, in Mount Gay-Shamrock, the average temperature is 5°C (41°F). The maximum can reach 20°C (69°F), while the minimum can drop as low as -13°C (8°F). Be sure to pack for a range of temperatures if you plan to travel during this time.
In Mount Gay-Shamrock in December, the total precipitation amount is 129 mm (5.1 in) over the course of 12 days.
In Mount Gay-Shamrock in December humidity is 86%. With an average temperature of 5°C (41°F), this humidity feels like a heavy, damp blanket wrapping around you, making outdoor activities uncomfortable and travel quite challenging due to the chill combined with the stickiness in the air.
In Mount Gay-Shamrock 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 Mount Gay-Shamrock, you can check the information here.
UV Risk Categories
Weather in Mount Gay-Shamrock varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Mount Gay-Shamrock, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (37°F) | 102 mm (4.0 inches) | 87% | moderate |
| February Weather | 5°C (42°F) | 175 mm (6.9 inches) | 87% | high |
| March Weather | 9°C (48°F) | 132 mm (5.2 inches) | 86% | very high |
| April Weather | 13°C (56°F) | 142 mm (5.6 inches) | 84% | very high |
| May Weather | 18°C (65°F) | 149 mm (5.9 inches) | 83% | very high |
| June Weather | 22°C (71°F) | 163 mm (6.4 inches) | 83% | extreme |
| July Weather | 24°C (76°F) | 125 mm (4.9 inches) | 79% | extreme |
| August Weather | 23°C (74°F) | 119 mm (4.7 inches) | 66% | very high |
| September Weather | 21°C (70°F) | 106 mm (4.2 inches) | 68% | very high |
| October Weather | 15°C (60°F) | 128 mm (5.0 inches) | 78% | high |
| November Weather | 7°C (46°F) | 84 mm (3.3 inches) | 89% | moderate |
| December Weather | 5°C (41°F) | 129 mm (5.1 inches) | 86% | moderate |