May Weather in Saint Stephen, United States

Last updated: June 24, 2025

In May, the average temperature in Saint Stephen, United States hovers around 23°C (74°F), offering a pleasant climate for outdoor activities. Expect minimum temperatures to dip to 7°C (46°F) while the maximum can soar up to 38°C (100°F). Rainfall is moderate, with an average precipitation of 93 mm (3.6 in) spread over 9 days. Coupled with an average humidity of 75%, it's a month that balances warmth with occasional refreshing showers.

May Temperature in Saint Stephen

In May in Saint Stephen, the average temperature is 23°C (74°F), with maximums reaching 38°C (100°F) and minimums dipping as low as 7°C (46°F). It's a great time to visit if you enjoy warm weather with a chance for cooler evenings!

May Weather in Saint Stephen: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Saint Stephen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Stephen, May typically has an average temperature of 23°C (74°F), with highs reaching up to 38°C (100°F) and lows dropping to around 7°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec495559667479818177705652
Data source: Temperature data for Saint Stephen 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 Saint Stephen

In Saint Stephen in May, the precipitation amount is 93 mm (3.6 in) during a span of 9 days.

May Precipitation Trends in Saint Stephen

The chart displays monthly precipitation patterns in Saint Stephen, 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 Saint Stephen, May typically receives around 93 mm (3.6 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec75927796931341711641355571144
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Saint Stephen

In Saint Stephen in May, humidity is 75%. With an average temperature of 23°C (74°F), this humidity feels like a warm, heavy blanket wrapping around you, making it feel more sweltering than it actually is, which can be quite uncomfortable for traveling.

May Average Humidity in Saint Stephen

This chart illustrates the average monthly humidity levels in Saint Stephen, 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 Saint Stephen is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%81%81%79%75%75%80%81%83%78%85%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Saint Stephen

In Saint Stephen 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 Saint Stephen.

Maximum UV Index Levels in Saint Stephen for May

The chart shows the monthly maximum UV Index (UVI) for Saint Stephen 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 Saint Stephen typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111109864
Data source: Saint Stephen 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 Saint Stephen Compares to Other Months

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

This table compares monthly weather conditions in Saint Stephen, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (50°F)75 mm (2.9 inches)86%moderate
February Weather13°C (55°F)92 mm (3.6 inches)81%high
March Weather15°C (59°F)77 mm (3.0 inches)81%very high
April Weather19°C (66°F)96 mm (3.8 inches)79%very high
May Weather23°C (74°F)93 mm (3.6 inches)75%extreme
June Weather26°C (79°F)134 mm (5.3 inches)75%extreme
July Weather27°C (82°F)171 mm (6.7 inches)80%extreme
August Weather27°C (81°F)164 mm (6.5 inches)81%very high
September Weather25°C (77°F)135 mm (5.3 inches)83%very high
October Weather21°C (70°F)55 mm (2.1 inches)78%very high
November Weather13°C (56°F)70 mm (2.8 inches)85%high
December Weather11°C (52°F)144 mm (5.7 inches)87%moderate

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