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May Weather in Greenfield, United States

Last updated: June 24, 2025

In May, the average temperature in Greenfield, United States hovers around 19°C (67°F), with a range spanning from a brisk 4°C (40°F) to a warm 34°C (93°F). However, brace yourself for rainy days—expect about 175 mm (6.9 in) of precipitation spread over 14 days. With an average humidity of 83%, you'll feel the moisture in the air, making it essential to stay hydrated and prepared!

May Temperature in Greenfield

In May in Greenfield, the average temperature is 19°C (67°F). Maximum temperatures can reach 34°C (93°F), while minimums can drop to as low as 4°C (40°F). Travelers should prepare for a wide range of temperatures and pack accordingly.

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 (67°F), with highs reaching up to 34°C (93°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec353749566777807773594741
Data source: Temperature data for Greenfield generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Greenfield

In Greenfield in May, the precipitation amount is 175 mm (6.9 in) 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 175 mm (6.9 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec74671331321758098132641256045
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Greenfield

In Greenfield in May humidity is 83%. With an average temperature of 19°C (67°F), this humidity feels like a warm, tropical blanket wrapping around you, making traveling feel a bit sluggish and sticky, yet still inviting as long as you stay hydrated and take breaks in the shade.

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 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%78%76%78%83%83%78%68%64%70%83%87%
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.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
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.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)74 mm (2.9 inches)81%moderate
February Weather3°C (38°F)67 mm (2.6 inches)78%high
March Weather10°C (50°F)133 mm (5.2 inches)76%high
April Weather13°C (56°F)132 mm (5.2 inches)78%very high
May Weather19°C (67°F)175 mm (6.9 inches)83%very high
June Weather25°C (77°F)80 mm (3.1 inches)83%extreme
July Weather27°C (80°F)98 mm (3.9 inches)78%extreme
August Weather25°C (77°F)132 mm (5.2 inches)68%very high
September Weather23°C (74°F)64 mm (2.5 inches)64%very high
October Weather15°C (59°F)125 mm (4.9 inches)70%high
November Weather8°C (47°F)60 mm (2.3 inches)83%moderate
December Weather5°C (42°F)45 mm (1.8 inches)87%moderate

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