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May Weather in Sisseton, United States

Last updated: June 24, 2025

In May, the average temperature in Sisseton, United States hovers around 14°C (57°F). However, be prepared for a range of temperatures, with minimums dipping to -1°C (30°F) and maximums reaching 34°C (94°F). During this month, expect about 77 mm (3.0 in) of precipitation over approximately 10 days, and keep in mind that the average humidity will be around 76%.

May Temperature in Sisseton

In May in Sisseton, the average temperature is 14°C (57°F). The maximum can reach 34°C (94°F), and the minimum can be as low as -1°C (30°F). This variability makes Sisseton an exciting destination for travelers who enjoy experiencing a range of weather conditions.

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

The chart illustrates May temperature patterns in Sisseton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sisseton, May typically has an average temperature of 14°C (57°F), with highs reaching up to 34°C (94°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec141330405770736962463222
Data source: Temperature data for Sisseton 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 Sisseton

In Sisseton in May, the total precipitation amount is 77 mm (3.0 in) spread over a duration of 10 days.

May Precipitation Trends in Sisseton

The chart displays monthly precipitation patterns in Sisseton, 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 Sisseton, May typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec2018375877818813081792338
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Sisseton

In Sisseton in May humidity is 76%. With an average temperature of 14°C (57°F), this humidity feels like a warm blanket wrapped around you, creating a heavy atmosphere that can make outdoor activities feel sluggish and stifling, urging travelers to seek shade and refreshment more frequently.

May Average Humidity in Sisseton

This chart illustrates the average monthly humidity levels in Sisseton, 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 Sisseton is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%89%81%82%76%81%82%83%82%82%87%84%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Sisseton

In Sisseton in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Sisseton.

Maximum UV Index Levels in Sisseton for May

The chart shows the monthly maximum UV Index (UVI) for Sisseton 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 Sisseton typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3567910997532
Data source: Sisseton 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 Sisseton Compares to Other Months

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

This table compares monthly weather conditions in Sisseton, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-10°C (14°F)20 mm (0.8 inches)85%moderate
February Weather-10°C (13°F)18 mm (0.7 inches)89%moderate
March Weather-1°C (30°F)37 mm (1.4 inches)81%high
April Weather5°C (41°F)57 mm (2.3 inches)82%high
May Weather14°C (57°F)77 mm (3.0 inches)76%very high
June Weather21°C (70°F)81 mm (3.2 inches)81%very high
July Weather23°C (74°F)88 mm (3.5 inches)82%very high
August Weather21°C (70°F)129 mm (5.1 inches)83%very high
September Weather17°C (62°F)81 mm (3.2 inches)82%high
October Weather8°C (46°F)79 mm (3.1 inches)82%moderate
November Weather0°C (32°F)22 mm (0.9 inches)87%moderate
December Weather-5°C (23°F)38 mm (1.5 inches)84%low

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