January Weather in Copiague, United States

Last updated: June 24, 2025

In January, the average temperature in Copiague, United States hovers around 2°C (35°F). Expect chilly days, with minimum temperatures plummeting to -15°C (5°F), while the mercury can rise to a comfortable 16°C (60°F). Be prepared for a bit of rain, as 82 mm (3.2 in) of precipitation is likely over 9 days, accompanied by a high average humidity of 84%—perfect for cozy indoor activities!

January Temperature in Copiague

In January in Copiague, the average temperature is 2°C (35°F), with maximums reaching 16°C (60°F) and minimums dropping as low as -15°C (5°F). Be prepared for a wide range of temperatures, making it essential to dress in layers for your travels.

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

The chart illustrates January temperature patterns in Copiague, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Copiague, January typically has an average temperature of 2°C (35°F), with highs reaching up to 16°C (60°F) and lows dropping to around -15°C (5°F).

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

January Precipitation in Copiague

In Copiague in January, the total precipitation amount is 82 mm (3.2 in), occurring over a span of 9 days.

January Precipitation Trends in Copiague

The chart displays monthly precipitation patterns in Copiague, 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 Copiague, January typically receives around 82 mm (3.2 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 Copiague

In Copiague in January, humidity is 84%. With an average temperature of 2°C (35°F), this humidity feels like an uncomfortable chill that penetrates your bones, making outdoor travel quite brisk and uninviting.

January Average Humidity in Copiague

This chart illustrates the average monthly humidity levels in Copiague, 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 Copiague is approximately 84%, 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 Copiague

In Copiague 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 Copiague, you can check the information here.

Maximum UV Index Levels in Copiague for January

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

Data source: Copiague 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 Copiague Compares to Other Months

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

This table compares monthly weather conditions in Copiague, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (35°F)	82 mm (3.2 inches)	84%	moderate
February Weather	2°C (36°F)	120 mm (4.7 inches)	82%	moderate
March Weather	5°C (41°F)	105 mm (4.1 inches)	81%	high
April Weather	9°C (49°F)	129 mm (5.1 inches)	78%	very high
May Weather	14°C (58°F)	125 mm (4.9 inches)	69%	very high
June Weather	20°C (69°F)	90 mm (3.6 inches)	69%	very high
July Weather	24°C (76°F)	137 mm (5.4 inches)	62%	very high
August Weather	24°C (75°F)	118 mm (4.7 inches)	65%	very high
September Weather	21°C (70°F)	96 mm (3.8 inches)	68%	very high
October Weather	16°C (61°F)	145 mm (5.7 inches)	74%	high
November Weather	9°C (48°F)	102 mm (4.0 inches)	82%	moderate
December Weather	5°C (40°F)	134 mm (5.3 inches)	80%	low