January Weather in Groton Long Point, United States

Last updated: June 24, 2025

In January, the average temperature in Groton Long Point, United States hovers around 2°C (35°F). Expect chilly days, with temperatures ranging from a minimum of -16°C (4°F) to a maximum of 14°C (58°F). This month brings about 83 mm (3.3 in) of precipitation spread over approximately 8 days, alongside an average humidity level of 84%. Prepare for a wet and cool experience!

January Temperature in Groton Long Point

In January in Groton Long Point, the average temperature is 2°C (35°F), with maximums reaching 14°C (58°F) and minimums dropping as low as -16°C (4°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack both warm and mild-weather clothing.

January Weather in Groton Long Point: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Groton Long Point, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Groton Long Point, January typically has an average temperature of 2°C (35°F), with highs reaching up to 14°C (58°F) and lows dropping to around -16°C (4°F).

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

January Precipitation in Groton Long Point

In Groton Long Point in January, the precipitation amount reaches 83 mm (3.3 in) over the course of 8 days.

January Precipitation Trends in Groton Long Point

The chart displays monthly precipitation patterns in Groton Long Point, 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 Groton Long Point, January typically receives around 83 mm (3.3 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 Groton Long Point

In Groton Long Point 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 Groton Long Point

This chart illustrates the average monthly humidity levels in Groton Long Point, 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 Groton Long Point 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 Groton Long Point

In Groton Long Point 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 Groton Long Point, you can check the information here.

Maximum UV Index Levels in Groton Long Point for January

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

Data source: Groton Long Point 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 Groton Long Point Compares to Other Months

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

This table compares monthly weather conditions in Groton Long Point, 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)	83 mm (3.3 inches)	84%	moderate
February Weather	2°C (36°F)	109 mm (4.3 inches)	84%	moderate
March Weather	4°C (39°F)	108 mm (4.3 inches)	82%	high
April Weather	8°C (47°F)	136 mm (5.3 inches)	79%	very high
May Weather	13°C (55°F)	119 mm (4.7 inches)	75%	very high
June Weather	18°C (64°F)	84 mm (3.3 inches)	78%	very high
July Weather	22°C (72°F)	115 mm (4.5 inches)	76%	very high
August Weather	22°C (73°F)	101 mm (4.0 inches)	76%	very high
September Weather	20°C (68°F)	101 mm (4.0 inches)	75%	very high
October Weather	16°C (60°F)	157 mm (6.2 inches)	75%	high
November Weather	9°C (49°F)	113 mm (4.4 inches)	80%	moderate
December Weather	4°C (40°F)	141 mm (5.6 inches)	80%	low