January Weather in Deerfield, United States

Last updated: June 24, 2025

In Deerfield, United States, the average temperature in January hovers around -6°C (22°F), with extremes dipping to a chilling -32°C (-25°F) and peaking at a relatively mild 12°C (53°F). During this month, expect 54 mm (2.1 in) of precipitation spread over 7 days, while humidity remains high at an average of 85%. Stay warm and dry!

January Temperature in Deerfield

In January in Deerfield, the average temperature is -6°C (22°F). The maximum can reach 12°C (53°F), while the minimum can plummet to as low as -32°C (-25°F). Be sure to pack warm clothing if you're planning to travel during this time.

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

The chart illustrates January temperature patterns in Deerfield, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Deerfield, January typically has an average temperature of -6°C (22°F), with highs reaching up to 12°C (53°F) and lows dropping to around -32°C (-25°F).

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

January Precipitation in Deerfield

In Deerfield in January, the precipitation amount is 54 mm (2.1 in) over a duration of 7 days.

January Precipitation Trends in Deerfield

The chart displays monthly precipitation patterns in Deerfield, 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 Deerfield, January typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 7 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 Deerfield

In Deerfield in January humidity is 85%. With an average temperature of -6°C (22°F), this humidity feels like an icy mist clinging to your skin, making outdoor activities uncomfortably chilly and causing your breath to cloud in the cold air, leaving you yearning for warmth and cozy indoor retreats while traveling.

January Average Humidity in Deerfield

This chart illustrates the average monthly humidity levels in Deerfield, 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 Deerfield is approximately 85%, 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 Deerfield

In Deerfield 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 Deerfield, you can check the information here.

Maximum UV Index Levels in Deerfield for January

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

Data source: Deerfield 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 Deerfield Compares to Other Months

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

This table compares monthly weather conditions in Deerfield, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (22°F)	54 mm (2.1 inches)	85%	moderate
February Weather	-5°C (23°F)	52 mm (2.0 inches)	85%	moderate
March Weather	2°C (36°F)	58 mm (2.3 inches)	85%	moderate
April Weather	8°C (46°F)	101 mm (4.0 inches)	85%	very high
May Weather	15°C (60°F)	127 mm (5.0 inches)	78%	very high
June Weather	21°C (71°F)	116 mm (4.6 inches)	80%	very high
July Weather	24°C (75°F)	92 mm (3.6 inches)	78%	very high
August Weather	22°C (72°F)	97 mm (3.8 inches)	76%	very high
September Weather	18°C (65°F)	109 mm (4.3 inches)	79%	very high
October Weather	11°C (52°F)	114 mm (4.5 inches)	83%	moderate
November Weather	3°C (37°F)	43 mm (1.7 inches)	88%	moderate
December Weather	-1°C (30°F)	47 mm (1.9 inches)	81%	low