January Weather in Carrollton, United States

Last updated: June 24, 2025

In January, the average temperature in Carrollton, United States hovers around -1°C (30°F). However, temperatures can fluctuate significantly, with minimums plummeting to -22°C (-8°F) and maximums reaching up to 21°C (70°F). Expect 93 mm (3.7 in) of precipitation over approximately 11 days, coupled with an average humidity of 88%, creating a chilly yet captivating atmosphere.

January Temperature in Carrollton

In January in Carrollton, the average temperature is -1°C (30°F). Maximums can reach 21°C (70°F) and minimums can be as low as -22°C (-8°F). Travelers should be prepared for a wide range of temperatures and dress accordingly for their trip.

January Weather in Carrollton: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Carrollton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Carrollton, January typically has an average temperature of -1°C (30°F), with highs reaching up to 21°C (70°F) and lows dropping to around -22°C (-8°F).

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

January Precipitation in Carrollton

In Carrollton in January, the precipitation amount is 93 mm (3.7 in) over the course of 11 days, indicating that rain is expected to be fairly frequent during that time.

January Precipitation Trends in Carrollton

The chart displays monthly precipitation patterns in Carrollton, 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 Carrollton, January typically receives around 93 mm (3.7 inches) of precipitation spread over approximately 11 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 Carrollton

In Carrollton in January humidity is 88%. With an average temperature of -1°C (30°F), this humidity feels like a biting chill that penetrates through your layers, making travel uncomfortable as every gust of wind becomes a sharp reminder of the cold and damp air surrounding you.

January Average Humidity in Carrollton

This chart illustrates the average monthly humidity levels in Carrollton, 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 Carrollton is approximately 88%, 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 Carrollton

In Carrollton in January, 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 Carrollton, you can check the information here.

Maximum UV Index Levels in Carrollton for January

The chart shows the monthly maximum UV Index (UVI) for Carrollton 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 Carrollton typically reaches 3, which falls under the moderate exposure category.

Data source: Carrollton 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 Carrollton Compares to Other Months

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

This table compares monthly weather conditions in Carrollton, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (30°F)	93 mm (3.7 inches)	88%	moderate
February Weather	1°C (34°F)	112 mm (4.4 inches)	88%	moderate
March Weather	5°C (41°F)	101 mm (4.0 inches)	87%	high
April Weather	10°C (51°F)	133 mm (5.3 inches)	87%	very high
May Weather	17°C (62°F)	127 mm (5.0 inches)	81%	very high
June Weather	21°C (70°F)	133 mm (5.3 inches)	83%	very high
July Weather	24°C (75°F)	128 mm (5.0 inches)	82%	very high
August Weather	22°C (73°F)	105 mm (4.1 inches)	76%	very high
September Weather	20°C (68°F)	114 mm (4.5 inches)	77%	very high
October Weather	14°C (57°F)	120 mm (4.7 inches)	82%	high
November Weather	5°C (42°F)	96 mm (3.8 inches)	89%	moderate
December Weather	2°C (36°F)	100 mm (3.9 inches)	86%	low