May Weather in O'Neill, United States

Last updated: June 24, 2025

In May, the average temperature in O'Neill, United States is a comfortable 15°C (59°F). However, be prepared for a range of conditions, as temperatures can dip as low as -2°C (29°F) and soar up to 35°C (96°F). With 134 mm (5.3 in) of precipitation expected over 14 days, and an average humidity level of 74%, visitors should pack accordingly to fully enjoy their experience!

May Temperature in O'Neill

In May in O'Neill, the average temperature is 15°C (59°F). Maximums can reach 35°C (96°F), and minimums can be as low as -2°C (29°F). Be sure to pack for both warmth and heat when traveling to O'Neill this month!

May Weather in O'Neill: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in O'Neill, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In O'Neill, May typically has an average temperature of 15°C (59°F), with highs reaching up to 35°C (96°F) and lows dropping to around -2°C (29°F).

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

May Precipitation in O'Neill

In O'Neill in May, the total precipitation amount is 134 mm (5.3 in) over the course of 14 days.

May Precipitation Trends in O'Neill

The chart displays monthly precipitation patterns in O'Neill, 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 O'Neill, May typically receives around 134 mm (5.3 inches) of precipitation spread over approximately 14 days.

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

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Millimeters (mm) Inches (in)

May Humidity in O'Neill

In O'Neill in May, humidity is 74%. With an average temperature of 15°C (59°F), this humidity feels like traveling through a warm, sticky blanket that clings to your skin, making outdoor activities a bit uncomfortable and prompting you to seek out shaded areas or cool breezes.

May Average Humidity in O'Neill

This chart illustrates the average monthly humidity levels in O'Neill, 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 O'Neill is approximately 74%, 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 O'Neill

In O'Neill 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 O'Neill.

Maximum UV Index Levels in O'Neill for May

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

Data source: O'Neill 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 O'Neill Compares to Other Months

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

This table compares monthly weather conditions in O'Neill, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (24°F)	23 mm (0.9 inches)	77%	moderate
February Weather	-5°C (23°F)	24 mm (0.9 inches)	81%	moderate
March Weather	3°C (37°F)	73 mm (2.9 inches)	71%	high
April Weather	7°C (46°F)	62 mm (2.4 inches)	75%	very high
May Weather	15°C (59°F)	134 mm (5.3 inches)	74%	very high
June Weather	23°C (73°F)	87 mm (3.4 inches)	82%	very high
July Weather	24°C (76°F)	95 mm (3.7 inches)	84%	very high
August Weather	22°C (73°F)	89 mm (3.5 inches)	82%	very high
September Weather	19°C (67°F)	65 mm (2.5 inches)	75%	very high
October Weather	9°C (49°F)	72 mm (2.8 inches)	72%	high
November Weather	3°C (38°F)	24 mm (0.9 inches)	81%	moderate
December Weather	-2°C (29°F)	44 mm (1.7 inches)	79%	low