January Weather in Sulphur, United States

Last updated: June 24, 2025

In Sulphur, United States, the average temperature in January hovers around 12°C (53°F). Expect a wide temperature range, with lows dipping to -7°C (19°F) and highs soaring to 27°C (81°F). During this month, you can anticipate 115 mm (4.5 in) of precipitation spread over 8 days, contributing to high average humidity levels of 81%.

January Temperature in Sulphur

In January in Sulphur, the average temperature is 12°C (53°F), with maximums reaching up to 27°C (81°F) and minimums plummeting as low as -7°C (19°F). Be sure to pack for a range of temperatures when traveling to Sulphur during this time!

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

The chart illustrates January temperature patterns in Sulphur, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sulphur, January typically has an average temperature of 12°C (53°F), with highs reaching up to 27°C (81°F) and lows dropping to around -7°C (19°F).

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

January Precipitation in Sulphur

In Sulphur in January, the precipitation amount is 115 mm (4.5 in) over the course of 8 days.

January Precipitation Trends in Sulphur

The chart displays monthly precipitation patterns in Sulphur, 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 Sulphur, January typically receives around 115 mm (4.5 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 Sulphur

In Sulphur in January, humidity is 81%. With an average temperature of 12°C (53°F), this humidity feels like a chilly dampness enveloping you, making outdoor activities uncomfortable and requiring layers to stay warm while you explore.

January Average Humidity in Sulphur

This chart illustrates the average monthly humidity levels in Sulphur, 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 Sulphur is approximately 81%, 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 Sulphur

In Sulphur 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 Sulphur.

Maximum UV Index Levels in Sulphur for January

The chart shows the monthly maximum UV Index (UVI) for Sulphur 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 Sulphur typically reaches 5, which falls under the moderate exposure category.

Data source: Sulphur 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 Sulphur Compares to Other Months

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

This table compares monthly weather conditions in Sulphur, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (53°F)	115 mm (4.5 inches)	81%	moderate
February Weather	14°C (58°F)	110 mm (4.3 inches)	81%	very high
March Weather	18°C (65°F)	81 mm (3.2 inches)	79%	very high
April Weather	20°C (69°F)	148 mm (5.8 inches)	80%	very high
May Weather	25°C (77°F)	222 mm (8.7 inches)	81%	extreme
June Weather	27°C (81°F)	178 mm (7.0 inches)	76%	extreme
July Weather	28°C (83°F)	159 mm (6.3 inches)	73%	extreme
August Weather	28°C (83°F)	199 mm (7.9 inches)	71%	extreme
September Weather	26°C (79°F)	179 mm (7.1 inches)	72%	very high
October Weather	22°C (72°F)	130 mm (5.1 inches)	73%	very high
November Weather	16°C (60°F)	69 mm (2.7 inches)	83%	high
December Weather	14°C (57°F)	137 mm (5.4 inches)	88%	moderate