Last updated: June 24, 2025
In December, the average temperature in Roberts, United States hovers around -3°C (27°F), with the mercury dipping as low as -17°C (1°F) and occasionally peaking at 10°C (51°F). Expect about 30 mm (1.2 in) of precipitation spread over 8 rainy days, while humidity remains high at an average of 91%. Prepare for a chilly and damp month!
In December in Roberts, the average temperature is -3°C (27°F). Maximums can reach 10°C (51°F) and minimums can drop as low as -17°C (1°F). Travelers should prepare for chilly conditions and be ready for a mix of temperatures during their visit.
In Roberts in December, the precipitation amount is 30 mm (1.2 in) over the course of 8 days.
In Roberts in December humidity is 91%. With an average temperature of -3°C (27°F), this humidity feels like a thick, icy blanket wrapping around you, making travel quite uncomfortable as every breath is a mix of frigid air and moisture, and the cold dampness clings to your skin, turning even short outings into a test of endurance.
In Roberts 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 Roberts, you can check the information here.
UV Risk Categories
Weather in Roberts varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Roberts, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (24°F) | 30 mm (1.2 inches) | 95% | moderate |
| February Weather | -2°C (28°F) | 33 mm (1.3 inches) | 95% | moderate |
| March Weather | 4°C (39°F) | 39 mm (1.6 inches) | 90% | high |
| April Weather | 8°C (47°F) | 40 mm (1.6 inches) | 81% | very high |
| May Weather | 13°C (56°F) | 52 mm (2.1 inches) | 71% | very high |
| June Weather | 19°C (67°F) | 29 mm (1.1 inches) | 64% | extreme |
| July Weather | 24°C (76°F) | 9 mm (0.4 inches) | 59% | extreme |
| August Weather | 22°C (72°F) | 15 mm (0.6 inches) | 49% | very high |
| September Weather | 17°C (63°F) | 23 mm (0.9 inches) | 52% | very high |
| October Weather | 7°C (45°F) | 34 mm (1.3 inches) | 69% | high |
| November Weather | 2°C (36°F) | 23 mm (0.9 inches) | 86% | moderate |
| December Weather | -3°C (27°F) | 30 mm (1.2 inches) | 91% | moderate |