May Weather in Bison, United States

Last updated: June 24, 2025

In Bison, United States, the average temperature in May hovers around 13°C (55°F). During this time, you can expect a minimum chill of -3°C (27°F) and a refreshing maximum of 34°C (94°F). Be prepared for 80 mm (3.1 in) of precipitation spread over 11 days, contributing to an average humidity of 76%.

May Temperature in Bison

In May in Bison, the average temperature is 13°C (55°F). Maximums can reach 34°C (94°F), while minimums can drop as low as -3°C (27°F). It's advisable to pack layers to comfortably enjoy the diverse weather conditions during your travels.

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

The chart illustrates May temperature patterns in Bison, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bison, May typically has an average temperature of 13°C (55°F), with highs reaching up to 34°C (94°F) and lows dropping to around -3°C (27°F).

Data source: Temperature data for Bison generated using information from the Copernicus Climate Change Service.

May Precipitation in Bison

In Bison in May, the precipitation amount is 80 mm (3.1 in) spread over a duration of 11 days.

May Precipitation Trends in Bison

The chart displays monthly precipitation patterns in Bison, 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 Bison, May typically receives around 80 mm (3.1 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in Bison

In Bison in May humidity is 76%. With an average temperature of 13°C (55°F), this humidity feels like a damp, heavy blanket enveloping you, making it feel cooler than it actually is, which can be quite refreshing for short excursions but may also lead to discomfort during prolonged outdoor activities.

May Average Humidity in Bison

This chart illustrates the average monthly humidity levels in Bison, 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 Bison is approximately 76%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Bison

In Bison 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 Bison.

Maximum UV Index Levels in Bison for May

The chart shows the monthly maximum UV Index (UVI) for Bison 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 Bison typically reaches 9, which falls under the very high exposure category.

Data source: Bison 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 Bison Compares to Other Months

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

This table compares monthly weather conditions in Bison, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	11 mm (0.4 inches)	77%	low
February Weather	-8°C (17°F)	18 mm (0.7 inches)	80%	moderate
March Weather	0°C (33°F)	27 mm (1.1 inches)	70%	moderate
April Weather	5°C (42°F)	53 mm (2.1 inches)	70%	very high
May Weather	13°C (55°F)	80 mm (3.1 inches)	76%	very high
June Weather	21°C (69°F)	46 mm (1.8 inches)	84%	very high
July Weather	24°C (75°F)	64 mm (2.5 inches)	85%	very high
August Weather	22°C (71°F)	54 mm (2.1 inches)	84%	very high
September Weather	17°C (62°F)	38 mm (1.5 inches)	77%	very high
October Weather	7°C (45°F)	54 mm (2.1 inches)	73%	moderate
November Weather	1°C (35°F)	12 mm (0.5 inches)	74%	moderate
December Weather	-3°C (27°F)	21 mm (0.8 inches)	79%	low