Last updated: June 24, 2025
In December, the average temperature in Thomson, United States hovers around 10°C (51°F), with fluctuations ranging from a chilly -5°C (24°F) to a warm 27°C (80°F). Visitors can expect 118 mm (4.7 in) of precipitation over approximately 10 days, contributing to a notably high average humidity of 89%. Prepare for a dynamic climate that holds surprises!
In December in Thomson, the average temperature is 10°C (51°F). Maximum temperatures can reach 27°C (80°F), while minimums can drop as low as -5°C (24°F). This range makes it essential for travelers to pack accordingly for both warm days and chilly nights.
In Thomson in December, the precipitation amount is 118 mm (4.7 in) over a span of 10 days.
In Thomson in December humidity is 89%. With an average temperature of 10°C (51°F), this humidity feels like traveling through a thick fog, where the damp air clings to your skin, making the coolness feel even chillier and adding an element of discomfort to your adventures.
In Thomson 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 Thomson for better planning.
UV Risk Categories
Weather in Thomson varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Thomson, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 9°C (49°F) | 94 mm (3.7 inches) | 86% | moderate |
| February Weather | 12°C (54°F) | 117 mm (4.6 inches) | 84% | high |
| March Weather | 15°C (59°F) | 82 mm (3.2 inches) | 83% | very high |
| April Weather | 18°C (65°F) | 105 mm (4.1 inches) | 81% | very high |
| May Weather | 23°C (74°F) | 104 mm (4.1 inches) | 81% | extreme |
| June Weather | 26°C (79°F) | 105 mm (4.1 inches) | 81% | extreme |
| July Weather | 28°C (82°F) | 110 mm (4.3 inches) | 83% | extreme |
| August Weather | 27°C (81°F) | 135 mm (5.3 inches) | 81% | very high |
| September Weather | 25°C (78°F) | 88 mm (3.5 inches) | 82% | very high |
| October Weather | 20°C (69°F) | 106 mm (4.2 inches) | 78% | very high |
| November Weather | 13°C (55°F) | 75 mm (3.0 inches) | 86% | high |
| December Weather | 10°C (51°F) | 118 mm (4.7 inches) | 89% | moderate |