January Weather in Melville, United States

Last updated: June 24, 2025

In January, the average temperature in Melville, United States hovers around 11°C (52°F). Expect a wide temperature range, with minimum lows dipping to -9°C (15°F) and maximum highs soaring to 28°C (83°F). This month also brings a precipitation average of 114 mm (4.5 in) over 9 days, contributing to a notably high average humidity of 83%.

January Temperature in Melville

In January in Melville, the average temperature is 11°C (52°F), with maximums reaching 28°C (83°F) and minimums dropping as low as -9°C (15°F). Travelers should be prepared for a wide range of temperatures, from warm days to potentially cold nights.

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

The chart illustrates January temperature patterns in Melville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Melville, January typically has an average temperature of 11°C (52°F), with highs reaching up to 28°C (83°F) and lows dropping to around -9°C (15°F).

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

January Precipitation in Melville

In Melville in January, the precipitation amount is 114 mm (4.5 in) over the course of 9 days.

January Precipitation Trends in Melville

The chart displays monthly precipitation patterns in Melville, 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 Melville, January typically receives around 114 mm (4.5 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 Melville

In Melville in January humidity is 83%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that can make outdoor activities uncomfortable, often leading travelers to seek shelter indoors or to dress in layered clothing to stay warm while exploring the area.

January Average Humidity in Melville

This chart illustrates the average monthly humidity levels in Melville, 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 Melville is approximately 83%, 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 Melville

In Melville 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 Melville.

Maximum UV Index Levels in Melville for January

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

Data source: Melville 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 Melville Compares to Other Months

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

This table compares monthly weather conditions in Melville, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (52°F)	114 mm (4.5 inches)	83%	moderate
February Weather	14°C (57°F)	110 mm (4.3 inches)	83%	very high
March Weather	18°C (64°F)	87 mm (3.4 inches)	80%	very high
April Weather	20°C (68°F)	167 mm (6.6 inches)	81%	extreme
May Weather	24°C (76°F)	172 mm (6.8 inches)	81%	extreme
June Weather	27°C (81°F)	149 mm (5.8 inches)	78%	extreme
July Weather	28°C (83°F)	165 mm (6.5 inches)	79%	extreme
August Weather	28°C (82°F)	131 mm (5.1 inches)	79%	extreme
September Weather	26°C (80°F)	115 mm (4.5 inches)	79%	very high
October Weather	22°C (72°F)	109 mm (4.3 inches)	77%	very high
November Weather	15°C (59°F)	77 mm (3.0 inches)	85%	high
December Weather	13°C (56°F)	117 mm (4.6 inches)	88%	moderate