May Weather in New Boston, United States

Last updated: June 24, 2025

In New Boston, United States, the average temperature in May hovers around 19°C (66°F), creating a pleasant atmosphere for outdoor activities. However, temperatures can vary significantly, with minimums dropping to 1°C (34°F) and maximums soaring up to 32°C (90°F). Expect about 128 mm (5.0 in) of precipitation spread across 14 days, contributing to an average humidity of 81%—perfect for those who enjoy a lush, green environment!

May Temperature in New Boston

In May in New Boston, the average temperature is 19°C (66°F). Maximums can reach 32°C (90°F) and minimums can be as low as 1°C (34°F). This variation means that travelers should pack a range of clothing to accommodate both warm days and cooler nights.

May Weather in New Boston: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in New Boston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In New Boston, May typically has an average temperature of 19°C (66°F), with highs reaching up to 32°C (90°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec353946556673787570604540
Data source: Temperature data for New Boston 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 New Boston

In New Boston in May, the precipitation amount is 128 mm (5.0 in) over a span of 14 days.

May Precipitation Trends in New Boston

The chart displays monthly precipitation patterns in New Boston, 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 New Boston, May typically receives around 128 mm (5.0 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec8512410612812815710712011011677112
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in New Boston

In New Boston in May, humidity is 81%. With an average temperature of 19°C (66°F), this humidity feels like a warm, heavy blanket enveloping you, making travel feel both muggy and slightly stifling, often leading to a need for frequent breaks in the shade.

May Average Humidity in New Boston

This chart illustrates the average monthly humidity levels in New Boston, 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 New Boston is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%87%85%81%82%81%73%73%78%89%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in New Boston

In New Boston 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 New Boston.

Maximum UV Index Levels in New Boston for May

The chart shows the monthly maximum UV Index (UVI) for New Boston 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 New Boston typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098653
Data source: New Boston 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 New Boston Compares to Other Months

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

This table compares monthly weather conditions in New Boston, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)85 mm (3.3 inches)88%moderate
February Weather4°C (39°F)124 mm (4.9 inches)88%moderate
March Weather8°C (47°F)106 mm (4.2 inches)87%high
April Weather13°C (55°F)128 mm (5.0 inches)85%very high
May Weather19°C (66°F)128 mm (5.0 inches)81%very high
June Weather23°C (73°F)157 mm (6.2 inches)82%very high
July Weather25°C (78°F)107 mm (4.2 inches)81%very high
August Weather24°C (75°F)120 mm (4.7 inches)73%very high
September Weather21°C (71°F)109 mm (4.3 inches)73%very high
October Weather15°C (60°F)116 mm (4.5 inches)78%high
November Weather7°C (45°F)77 mm (3.0 inches)89%moderate
December Weather4°C (40°F)112 mm (4.4 inches)87%moderate

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