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May Weather in Westfield, United States

Last updated: June 24, 2025

In May, the average temperature in Westfield, United States hovers around 11°C (52°F). Expect a range of conditions, with minimums dipping to -4°C (25°F) and maximums soaring to 32°C (90°F). Be prepared for about 108 mm (4.2 in) of precipitation over 13 days, accompanied by an average humidity of 82%. Stay adaptable for both the chill and warmth this month brings!

May Temperature in Westfield

In May in Westfield, the average temperature is 11°C (52°F). The maximum can reach 32°C (90°F), while the minimum can drop as low as -4°C (25°F). Be sure to pack for a wide range of temperatures to ensure a comfortable and enjoyable travel experience.

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

The chart illustrates May temperature patterns in Westfield, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Westfield, May typically has an average temperature of 11°C (52°F), with highs reaching up to 32°C (90°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec151725385161676557463220
Data source: Temperature data for Westfield 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 Westfield

In Westfield in May, the precipitation amount is 108 mm (4.2 in), spread across 13 days.

May Precipitation Trends in Westfield

The chart displays monthly precipitation patterns in Westfield, 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 Westfield, May typically receives around 108 mm (4.2 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec937976111108911179097112114103
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Westfield

In Westfield in May, humidity is 82%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that seeps into your bones, making it essential to dress in layers and stay prepared for the moisture-laden air as you explore your surroundings.

May Average Humidity in Westfield

This chart illustrates the average monthly humidity levels in Westfield, 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 Westfield is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%90%87%82%77%82%83%85%87%88%90%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Westfield

In Westfield in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Westfield.

Maximum UV Index Levels in Westfield for May

The chart shows the monthly maximum UV Index (UVI) for Westfield 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 Westfield typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2357810887532
Data source: Westfield 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 Westfield Compares to Other Months

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

This table compares monthly weather conditions in Westfield, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (16°F)93 mm (3.7 inches)93%low
February Weather-8°C (18°F)79 mm (3.1 inches)92%moderate
March Weather-4°C (26°F)76 mm (3.0 inches)90%moderate
April Weather3°C (39°F)111 mm (4.4 inches)87%high
May Weather11°C (52°F)108 mm (4.2 inches)82%very high
June Weather16°C (61°F)91 mm (3.6 inches)77%very high
July Weather19°C (67°F)117 mm (4.6 inches)81%very high
August Weather19°C (66°F)90 mm (3.5 inches)83%very high
September Weather14°C (57°F)97 mm (3.8 inches)85%high
October Weather8°C (46°F)112 mm (4.4 inches)87%moderate
November Weather0°C (32°F)113 mm (4.5 inches)87%moderate
December Weather-7°C (20°F)103 mm (4.1 inches)90%low

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