January Weather in Greenfield, United States

Last updated: June 24, 2025

In Greenfield, United States, the average temperature in January hovers around 2°C (35°F), with the mercury occasionally dipping to a chilly -19°C (-1°F) or rising to a pleasant 21°C (70°F). Expect 74 mm (2.9 in) of precipitation over about 7 days, creating a humid atmosphere with an average humidity of 81%.

January Temperature in Greenfield

In January in Greenfield, the average temperature is 2°C (35°F). The maximum can reach 21°C (70°F), and the minimum can be as low as -19°C (-1°F). Travelers should be prepared for a wide range of temperatures and pack accordingly to enjoy their stay.

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

The chart illustrates January temperature patterns in Greenfield, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Greenfield, January typically has an average temperature of 2°C (35°F), with highs reaching up to 21°C (70°F) and lows dropping to around -19°C (-1°F).

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

January Precipitation in Greenfield

In Greenfield in January, the precipitation amount is 74 mm (2.9 in) over a period of 7 days.

January Precipitation Trends in Greenfield

The chart displays monthly precipitation patterns in Greenfield, 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 Greenfield, January typically receives around 74 mm (2.9 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 Greenfield

In Greenfield in January humidity is 81%. With an average temperature of 2°C (35°F), this humidity feels like a damp chill wrapping around you, making outdoor exploration quite uncomfortable and prompting you to seek warmth indoors rather than traveling extensively outside.

January Average Humidity in Greenfield

This chart illustrates the average monthly humidity levels in Greenfield, 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 Greenfield is approximately 81%, 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 Greenfield

In Greenfield 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 Greenfield, you can check the information here.

Maximum UV Index Levels in Greenfield for January

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

Data source: Greenfield 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 Greenfield Compares to Other Months

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

This table compares monthly weather conditions in Greenfield, 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)	74 mm (2.9 inches)	81%	moderate
February Weather	3°C (38°F)	67 mm (2.6 inches)	78%	high
March Weather	10°C (50°F)	133 mm (5.2 inches)	76%	high
April Weather	13°C (56°F)	132 mm (5.2 inches)	78%	very high
May Weather	19°C (67°F)	175 mm (6.9 inches)	83%	very high
June Weather	25°C (77°F)	80 mm (3.1 inches)	83%	extreme
July Weather	27°C (80°F)	98 mm (3.9 inches)	78%	extreme
August Weather	25°C (77°F)	132 mm (5.2 inches)	68%	very high
September Weather	23°C (74°F)	64 mm (2.5 inches)	64%	very high
October Weather	15°C (59°F)	125 mm (4.9 inches)	70%	high
November Weather	8°C (47°F)	60 mm (2.3 inches)	83%	moderate
December Weather	5°C (42°F)	45 mm (1.8 inches)	87%	moderate