January Weather in Lafayette, United States

Last updated: June 24, 2025

In January, the average temperature in Lafayette, United States hovers around 9°C (48°F). Expect a chilly minimum of -12°C (11°F) while the thermometer can soar up to a pleasant 26°C (79°F). Be prepared for some wet days, as 108 mm (4.3 in) of precipitation typically falls over 9 days. Overall, the atmosphere is quite humid, with an average humidity of 85%.

January Temperature in Lafayette

In January in Lafayette, the average temperature is 9°C (48°F). The maximum can reach 26°C (79°F), while the minimum can dip as low as -12°C (11°F). Be sure to pack layers to stay comfortable amidst the varying temperatures during your travels.

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

The chart illustrates January temperature patterns in Lafayette, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lafayette, January typically has an average temperature of 9°C (48°F), with highs reaching up to 26°C (79°F) and lows dropping to around -12°C (11°F).

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

January Precipitation in Lafayette

In Lafayette in January, the precipitation amount is 108 mm (4.3 in) spread over 9 days.

January Precipitation Trends in Lafayette

The chart displays monthly precipitation patterns in Lafayette, 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 Lafayette, January typically receives around 108 mm (4.3 inches) of precipitation spread over approximately 9 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 Lafayette

In Lafayette in January humidity is 85%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill enveloping you, making outdoor activities less enjoyable and requiring extra layers to stay warm and comfortable while traveling.

January Average Humidity in Lafayette

This chart illustrates the average monthly humidity levels in Lafayette, 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 Lafayette is approximately 85%, 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 Lafayette

In Lafayette in January, 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 Lafayette for better planning.

Maximum UV Index Levels in Lafayette for January

The chart shows the monthly maximum UV Index (UVI) for Lafayette 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 Lafayette typically reaches 4, which falls under the moderate exposure category.

Data source: Lafayette 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 Lafayette Compares to Other Months

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

This table compares monthly weather conditions in Lafayette, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (48°F)	108 mm (4.3 inches)	85%	moderate
February Weather	12°C (54°F)	146 mm (5.7 inches)	84%	high
March Weather	15°C (59°F)	113 mm (4.4 inches)	82%	very high
April Weather	18°C (64°F)	128 mm (5.0 inches)	82%	very high
May Weather	22°C (72°F)	111 mm (4.4 inches)	81%	extreme
June Weather	25°C (78°F)	119 mm (4.7 inches)	77%	extreme
July Weather	27°C (80°F)	100 mm (3.9 inches)	77%	extreme
August Weather	26°C (80°F)	117 mm (4.6 inches)	72%	extreme
September Weather	25°C (77°F)	98 mm (3.8 inches)	73%	very high
October Weather	20°C (68°F)	108 mm (4.2 inches)	73%	very high
November Weather	12°C (54°F)	83 mm (3.3 inches)	85%	high
December Weather	10°C (50°F)	138 mm (5.5 inches)	88%	moderate