Last updated: June 24, 2025
In December, the average temperature in Shady Grove, United States hovers around 7°C (45°F), with a notable temperature range from a brisk -8°C (19°F) to a warm 24°C (75°F). During this month, expect an average precipitation of 78 mm (3.1 in) spread across 7 days, and keep in mind that humidity can be quite high at 87%. Embrace the variability and prepare accordingly!
In December in Shady Grove, the average temperature is 7°C (45°F), with maximums reaching 24°C (75°F) and minimums dipping as low as -8°C (19°F). Be prepared for a diverse range of temperatures when traveling during this month.
In Shady Grove in December, the total precipitation amount is 78 mm (3.1 in) over a duration of 7 days.
In Shady Grove in December, humidity is 87%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making outdoor adventures somewhat uncomfortable and urging travelers to seek refuge in cozy cafes or warm indoor activities.
In Shady Grove 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 Shady Grove, you can check the information here.
UV Risk Categories
Weather in Shady Grove varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Shady Grove, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (39°F) | 86 mm (3.4 inches) | 79% | moderate |
| February Weather | 5°C (42°F) | 97 mm (3.8 inches) | 78% | high |
| March Weather | 12°C (53°F) | 137 mm (5.4 inches) | 75% | high |
| April Weather | 15°C (59°F) | 174 mm (6.9 inches) | 75% | very high |
| May Weather | 20°C (69°F) | 202 mm (7.9 inches) | 83% | very high |
| June Weather | 25°C (78°F) | 83 mm (3.3 inches) | 81% | extreme |
| July Weather | 27°C (81°F) | 105 mm (4.1 inches) | 78% | extreme |
| August Weather | 26°C (79°F) | 135 mm (5.3 inches) | 68% | very high |
| September Weather | 24°C (75°F) | 75 mm (3.0 inches) | 64% | very high |
| October Weather | 16°C (62°F) | 151 mm (5.9 inches) | 71% | high |
| November Weather | 10°C (50°F) | 67 mm (2.7 inches) | 82% | moderate |
| December Weather | 7°C (45°F) | 78 mm (3.1 inches) | 87% | moderate |