January Weather in State Line, United States

Last updated: June 24, 2025

In January, the average temperature in State Line, United States hovers around 10°C (51°F), but expect a range from a chilling -9°C (16°F) to a warm 28°C (83°F). With 116 mm (4.6 in) of precipitation spread over 8 days, you may want to keep your umbrella handy. Additionally, the air can feel quite humid, with an average humidity level of 82%, making it essential to dress accordingly!

January Temperature in State Line

In January in State Line, the average temperature is 10°C (51°F). The maximum can reach 28°C (83°F), and the minimum can be as low as -9°C (16°F). This means travelers should be prepared for a wide range of weather conditions, making it essential to pack layers and versatile clothing.

January Weather in State Line: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in State Line, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In State Line, January typically has an average temperature of 10°C (51°F), with highs reaching up to 28°C (83°F) and lows dropping to around -9°C (16°F).

Data source: Temperature data for State Line generated using information from the Copernicus Climate Change Service.

January Precipitation in State Line

In State Line in January, the total precipitation amount is 116 mm (4.6 in) recorded over a span of 8 days.

January Precipitation Trends in State Line

The chart displays monthly precipitation patterns in State Line, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In State Line, January typically receives around 116 mm (4.6 inches) of precipitation spread over approximately 8 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in State Line

In State Line in January humidity is 82%. With an average temperature of 10°C (51°F), this humidity feels like a damp chill that clings to your skin, making outdoor adventures less appealing and prompting travelers to seek cozy indoor activities or warm drinks to counter the brisk air.

January Average Humidity in State Line

This chart illustrates the average monthly humidity levels in State Line, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in State Line is approximately 82%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in State Line

In State Line in January, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in State Line.

Maximum UV Index Levels in State Line for January

The chart shows the monthly maximum UV Index (UVI) for State Line in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in State Line typically reaches 5, which falls under the moderate exposure category.

Data source: State Line January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How January Weather in State Line Compares to Other Months

Weather in State Line varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in State Line, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in State Line, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	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