May Weather in Greenfield, United States

Last updated: June 24, 2025

In May, the average temperature in Greenfield, United States hovers around 16°C (62°F). Expect a temperature range with a minimum of 4°C (39°F) and a maximum reaching up to 35°C (96°F). Prepare for a bit of moisture, as 15 mm (0.6 in) of precipitation is likely over the course of 3 days. With an average humidity of 71%, be ready for a blend of warmth and slight dampness in the air!

May Temperature in Greenfield

In May in Greenfield, the average temperature is 16°C (62°F). Maximum temperatures can reach as high as 35°C (96°F), while minimums can drop to around 4°C (39°F). When traveling during this month, be sure to pack both light clothing for the warmth and layers for the cooler evenings.

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

The chart illustrates May 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, May typically has an average temperature of 16°C (62°F), with highs reaching up to 35°C (96°F) and lows dropping to around 4°C (39°F).

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

May Precipitation in Greenfield

In Greenfield in May, the precipitation amount is 15 mm (0.6 in) over the course of 3 days.

May Precipitation Trends in Greenfield

The chart displays monthly precipitation patterns in Greenfield, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Greenfield, May typically receives around 15 mm (0.6 inches) of precipitation spread over approximately 3 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Greenfield

In Greenfield in May, humidity is 71%. With an average temperature of 16°C (62°F), this humidity feels like a warm, damp embrace, making it a bit uncomfortable for traveling unless you're accustomed to such conditions.

May Average Humidity in Greenfield

This chart illustrates the average monthly humidity levels in Greenfield, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Greenfield is approximately 71%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Greenfield

In Greenfield in May, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Greenfield.

Maximum UV Index Levels in Greenfield for May

The chart shows the monthly maximum UV Index (UVI) for Greenfield in May, 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 May, the maximum UV index in Greenfield typically reaches 11, which falls under the extreme exposure category.

Data source: Greenfield May 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 May 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 May’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 May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (50°F)	112 mm (4.4 inches)	82%	moderate
February Weather	10°C (50°F)	75 mm (2.9 inches)	84%	moderate
March Weather	11°C (52°F)	74 mm (2.9 inches)	82%	very high
April Weather	14°C (57°F)	21 mm (0.8 inches)	78%	very high
May Weather	16°C (62°F)	15 mm (0.6 inches)	71%	extreme
June Weather	21°C (69°F)	1 mm (0.0 inches)	64%	extreme
July Weather	23°C (75°F)	0 mm (0.0 inches)	58%	extreme
August Weather	24°C (75°F)	0 mm (0.0 inches)	54%	extreme
September Weather	21°C (71°F)	1 mm (0.0 inches)	55%	very high
October Weather	18°C (64°F)	10 mm (0.4 inches)	62%	high
November Weather	13°C (56°F)	27 mm (1.0 inches)	78%	moderate
December Weather	10°C (50°F)	76 mm (3.0 inches)	80%	moderate