Last updated: June 24, 2025
In December, the average temperature in State Line, United States hovers around 12°C (54°F), presenting a diverse climate with a potential minimum of -4°C (25°F) and a maximum reaching 27°C (81°F). Visitors can expect 139 mm (5.5 in) of precipitation spread over 12 days, contributing to the average humidity of a brisk 87%. Whether you're enjoying crisp mornings or warmer afternoons, be prepared for a varied weather experience!
In December in State Line, the average temperature is 12°C (54°F). The maximum can reach 27°C (81°F), while the minimum can be as low as -4°C (25°F). Travelers should be prepared for a range of temperatures, so it's advisable to pack layers to enjoy all that State Line has to offer.
In State Line, in December, the precipitation amount is 139 mm (5.5 in) over a span of 12 days.
In State Line in December humidity is 87%. With an average temperature of 12°C (54°F), this humidity feels like a damp embrace, making it quite uncomfortable for traveling, as the air feels heavy and can quickly sap your energy as you explore the sights.
In State Line 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 State Line for better planning.
UV Risk Categories
Weather in State Line varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in State Line, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 10°C (51°F) | 116 mm (4.6 inches) | 82% | moderate |
| February Weather | 14°C (57°F) | 114 mm (4.5 inches) | 80% | very high |
| March Weather | 17°C (62°F) | 112 mm (4.4 inches) | 80% | very high |
| April Weather | 19°C (67°F) | 125 mm (4.9 inches) | 78% | extreme |
| May Weather | 24°C (75°F) | 121 mm (4.7 inches) | 73% | extreme |
| June Weather | 26°C (80°F) | 185 mm (7.3 inches) | 71% | extreme |
| July Weather | 27°C (82°F) | 125 mm (4.9 inches) | 79% | extreme |
| August Weather | 27°C (82°F) | 138 mm (5.4 inches) | 78% | extreme |
| September Weather | 26°C (79°F) | 119 mm (4.7 inches) | 80% | very high |
| October Weather | 22°C (71°F) | 102 mm (4.0 inches) | 76% | very high |
| November Weather | 14°C (58°F) | 74 mm (2.9 inches) | 83% | high |
| December Weather | 12°C (54°F) | 139 mm (5.5 inches) | 87% | moderate |