January Weather in Deerfield, United States

Last updated: June 24, 2025

In January, the average temperature in Deerfield, United States hovers around 1°C (33°F). Expect temperatures to range from a chilly -19°C (-3°F) to a balmy 22°C (72°F). During this month, precipitation is minimal, with an average of just 16 mm (0.6 in) over 3 days, and the humidity remains relatively high at 74%. Prepare accordingly!

January Temperature in Deerfield

In January in Deerfield, the average temperature is 1°C (33°F). Maximum temperatures can reach 22°C (72°F), while the minimum can dip as low as -19°C (-3°F). Be prepared for a wide range of temperatures, making it a great time to experience the area's winter charm and warmer days.

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 1°C (33°F), with highs reaching up to 22°C (72°F) and lows dropping to around -19°C (-3°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 16 mm (0.6 in), spread over a duration of 3 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 16 mm (0.6 inches) of precipitation spread over approximately 3 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 74%. With an average temperature of 1°C (33°F), this humidity feels like a chilly, damp embrace that can make outdoor activities uncomfortable, often causing your clothes to cling to your skin and making you crave a warm, dry refuge.

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 74%, 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 reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Deerfield for better planning.

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 4, 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	1°C (33°F)	16 mm (0.6 inches)	74%	moderate
February Weather	1°C (34°F)	17 mm (0.7 inches)	77%	moderate
March Weather	8°C (46°F)	47 mm (1.9 inches)	65%	high
April Weather	12°C (54°F)	41 mm (1.6 inches)	67%	very high
May Weather	17°C (63°F)	112 mm (4.4 inches)	81%	extreme
June Weather	24°C (76°F)	50 mm (2.0 inches)	82%	extreme
July Weather	26°C (79°F)	46 mm (1.8 inches)	82%	extreme
August Weather	25°C (77°F)	67 mm (2.6 inches)	84%	extreme
September Weather	22°C (71°F)	42 mm (1.7 inches)	79%	very high
October Weather	13°C (55°F)	39 mm (1.6 inches)	75%	high
November Weather	7°C (45°F)	10 mm (0.4 inches)	79%	moderate
December Weather	3°C (37°F)	18 mm (0.7 inches)	83%	moderate