Last updated: June 24, 2025
In December, the average temperature in North Rock Springs, United States hovers around -6°C (21°F), with drastic fluctuations possible—minimums can plummet to -24°C (-10°F), while maximums may reach a mild 13°C (55°F). Expect 22 mm (0.8 in) of precipitation spread over 7 days, contributing to an average humidity level of 90%.
In December in North Rock Springs, the average temperature is -6°C (21°F). Maximum temperatures can reach up to 13°C (55°F), while minimums can plunge as low as -24°C (-10°F). Be sure to pack accordingly, as the weather can vary significantly during this time of year.
In North Rock Springs in December, the total precipitation amount is 22 mm (0.8 in), spread over a duration of 7 days.
In North Rock Springs in December humidity is 90%. With an average temperature of -6°C (21°F), this humidity feels like a heavy, icy mist that clings to your skin, making every breath feel sharp and cold, which can be quite challenging for traveling.
In North Rock Springs 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 North Rock Springs, you can check the information here.
UV Risk Categories
Weather in North Rock Springs varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in North Rock Springs, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -8°C (18°F) | 24 mm (0.9 inches) | 92% | moderate |
| February Weather | -7°C (21°F) | 27 mm (1.1 inches) | 93% | high |
| March Weather | -1°C (31°F) | 38 mm (1.5 inches) | 85% | high |
| April Weather | 5°C (41°F) | 41 mm (1.6 inches) | 73% | very high |
| May Weather | 11°C (51°F) | 46 mm (1.8 inches) | 64% | extreme |
| June Weather | 18°C (65°F) | 18 mm (0.7 inches) | 57% | extreme |
| July Weather | 23°C (73°F) | 9 mm (0.4 inches) | 45% | extreme |
| August Weather | 21°C (70°F) | 9 mm (0.4 inches) | 41% | extreme |
| September Weather | 16°C (60°F) | 21 mm (0.8 inches) | 50% | very high |
| October Weather | 6°C (43°F) | 22 mm (0.9 inches) | 70% | high |
| November Weather | 1°C (33°F) | 25 mm (1.0 inches) | 84% | moderate |
| December Weather | -6°C (21°F) | 22 mm (0.8 inches) | 90% | moderate |