January Weather in Newmarket, United States

Last updated: June 24, 2025

In January, the average temperature in Newmarket, United States hovers around -2°C (29°F). Expect a chilly range with minimums plummeting to -21°C (-6°F) and maximums reaching up to 19°C (67°F). With an average humidity of 86% and 72 mm (2.8 in) of precipitation spread over 8 days, prepare for a damp and brisk atmosphere.

January Temperature in Newmarket

In January in Newmarket, the average temperature is -2°C (29°F), with maximums reaching up to 19°C (67°F) and minimums plummeting as low as -21°C (-6°F). Be sure to pack accordingly to experience the full range of temperatures during your travels.

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

The chart illustrates January temperature patterns in Newmarket, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Newmarket, January typically has an average temperature of -2°C (29°F), with highs reaching up to 19°C (67°F) and lows dropping to around -21°C (-6°F).

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

January Precipitation in Newmarket

In Newmarket in January, the precipitation amount is 72 mm (2.8 in) over the course of 8 days.

January Precipitation Trends in Newmarket

The chart displays monthly precipitation patterns in Newmarket, 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 Newmarket, January typically receives around 72 mm (2.8 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 Newmarket

In Newmarket in January humidity is 86%. With an average temperature of -2°C (29°F), this humidity feels like a damp chill that seeps through layers of clothing, making outdoor activities uncomfortable and travel plans challenging.

January Average Humidity in Newmarket

This chart illustrates the average monthly humidity levels in Newmarket, 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 Newmarket is approximately 86%, 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 Newmarket

In Newmarket 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 Newmarket, you can check the information here.

Maximum UV Index Levels in Newmarket for January

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

Data source: Newmarket 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 Newmarket Compares to Other Months

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

This table compares monthly weather conditions in Newmarket, 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 (29°F)	72 mm (2.8 inches)	86%	moderate
February Weather	-1°C (31°F)	90 mm (3.5 inches)	84%	moderate
March Weather	2°C (36°F)	86 mm (3.4 inches)	82%	moderate
April Weather	8°C (47°F)	131 mm (5.2 inches)	80%	very high
May Weather	14°C (58°F)	78 mm (3.1 inches)	72%	very high
June Weather	20°C (68°F)	91 mm (3.6 inches)	72%	very high
July Weather	23°C (73°F)	135 mm (5.3 inches)	67%	very high
August Weather	22°C (73°F)	78 mm (3.1 inches)	66%	very high
September Weather	19°C (66°F)	73 mm (2.9 inches)	71%	high
October Weather	13°C (55°F)	131 mm (5.2 inches)	78%	moderate
November Weather	5°C (41°F)	102 mm (4.0 inches)	84%	moderate
December Weather	0°C (32°F)	126 mm (5.0 inches)	81%	low