May Weather in Harper, United States

Last updated: June 24, 2025

In May, the average temperature in Harper, United States hovers around 23°C (74°F), perfect for outdoor adventures. However, be prepared for a range: temperatures can dip to a brisk 7°C (44°F) or soar to a sizzling 37°C (98°F). With 143 mm (5.6 in) of precipitation spread over 12 days, you might want to carry an umbrella. Plus, with an average humidity of 82%, it’s wise to stay hydrated and enjoy the vibrant atmosphere!

May Temperature in Harper

In May in Harper, the average temperature is 23°C (74°F). Maximums can reach 37°C (98°F), while minimums can drop to as low as 7°C (44°F). Be sure to pack layers to comfortably enjoy the diverse weather during your travels!

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

The chart illustrates May temperature patterns in Harper, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harper, May typically has an average temperature of 23°C (74°F), with highs reaching up to 37°C (98°F) and lows dropping to around 7°C (44°F).

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

May Precipitation in Harper

In Harper in May, the total precipitation amount is 143 mm (5.6 in) over the course of 12 days.

May Precipitation Trends in Harper

The chart displays monthly precipitation patterns in Harper, 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 Harper, May typically receives around 143 mm (5.6 inches) of precipitation spread over approximately 12 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 Harper

In Harper in May, humidity is 82%. With an average temperature of 23°C (74°F), this humidity feels like you are walking through a warm, damp blanket, making travel a bit uncomfortable and sticky as you navigate the air thick with moisture.

May Average Humidity in Harper

This chart illustrates the average monthly humidity levels in Harper, 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 Harper is approximately 82%, 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 Harper

In Harper 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 Harper.

Maximum UV Index Levels in Harper for May

The chart shows the monthly maximum UV Index (UVI) for Harper 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 Harper typically reaches 11, which falls under the extreme exposure category.

Data source: Harper 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 Harper Compares to Other Months

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

This table compares monthly weather conditions in Harper, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (49°F)	39 mm (1.5 inches)	78%	moderate
February Weather	11°C (52°F)	46 mm (1.8 inches)	78%	very high
March Weather	16°C (61°F)	61 mm (2.4 inches)	77%	very high
April Weather	19°C (66°F)	80 mm (3.2 inches)	78%	extreme
May Weather	23°C (74°F)	143 mm (5.6 inches)	82%	extreme
June Weather	26°C (79°F)	54 mm (2.1 inches)	78%	extreme
July Weather	28°C (82°F)	43 mm (1.7 inches)	69%	extreme
August Weather	28°C (82°F)	47 mm (1.9 inches)	63%	extreme
September Weather	25°C (77°F)	95 mm (3.8 inches)	66%	extreme
October Weather	20°C (68°F)	76 mm (3.0 inches)	73%	very high
November Weather	14°C (58°F)	25 mm (1.0 inches)	84%	high
December Weather	11°C (53°F)	34 mm (1.3 inches)	87%	moderate