May Weather in Greenfield, United States

Last updated: June 24, 2025

In May, the average temperature in Greenfield, United States hovers around 19°C (66°F), making it a pleasant time to visit. However, temperatures can vary significantly, with minimums dipping to 3°C (37°F) and maximums soaring to 34°C (94°F). Be prepared for some rain, as precipitation amounts to about 150 mm (5.9 in) over 14 days. With an average humidity of 82%, you might want to pack accordingly for a comfortable stay!

May Temperature in Greenfield

In May in Greenfield, the average temperature is 19°C (66°F). Maximum temperatures can reach up to 34°C (94°F), while minimums can drop as low as 3°C (37°F). It's a great time to visit for a mix of warm days and cool 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 19°C (66°F), with highs reaching up to 34°C (94°F) and lows dropping to around 3°C (37°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 total precipitation amount is 150 mm (5.9 in), occurring over a span of 14 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 150 mm (5.9 inches) of precipitation spread over approximately 14 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 82%. With an average temperature of 19°C (66°F), this humidity feels like a warm blanket wrapping around you, making it slightly uncomfortable for traveling as you might find yourself constantly seeking shade or a cool breeze.

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 82%, 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 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, 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 10, which falls under the very high 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	-1°C (31°F)	68 mm (2.7 inches)	82%	moderate
February Weather	1°C (34°F)	74 mm (2.9 inches)	80%	moderate
March Weather	7°C (45°F)	135 mm (5.3 inches)	80%	high
April Weather	12°C (54°F)	123 mm (4.8 inches)	80%	very high
May Weather	19°C (66°F)	150 mm (5.9 inches)	82%	very high
June Weather	24°C (76°F)	107 mm (4.2 inches)	83%	extreme
July Weather	26°C (79°F)	89 mm (3.5 inches)	81%	extreme
August Weather	24°C (75°F)	113 mm (4.5 inches)	80%	very high
September Weather	22°C (71°F)	76 mm (3.0 inches)	76%	very high
October Weather	14°C (58°F)	97 mm (3.8 inches)	76%	high
November Weather	6°C (43°F)	67 mm (2.6 inches)	85%	moderate
December Weather	3°C (37°F)	51 mm (2.0 inches)	86%	moderate