May Weather in Monticello, United States

Last updated: June 24, 2025

In Monticello, United States, the average temperature in May hovers around 24°C (76°F), with a minimum of 9°C (49°F) and a scorching maximum of 38°C (100°F). During this month, expect about 83 mm (3.3 in) of precipitation spread across 9 days, contributing to an average humidity level of 73%.

May Temperature in Monticello

In May in Monticello, the average temperature is 24°C (76°F). Maximum can reach 38°C (100°F) and minimum can be as low as 9°C (49°F). This makes it an ideal time to explore outdoor activities while being prepared for varying weather conditions.

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

The chart illustrates May temperature patterns in Monticello, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Monticello, May typically has an average temperature of 24°C (76°F), with highs reaching up to 38°C (100°F) and lows dropping to around 9°C (49°F).

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

May Precipitation in Monticello

In Monticello in May, the precipitation amount is 83 mm (3.3 in) over the course of 9 days.

May Precipitation Trends in Monticello

The chart displays monthly precipitation patterns in Monticello, 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 Monticello, May typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 9 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 Monticello

In Monticello in May humidity is 73%. With an average temperature of 24°C (76°F), this humidity feels like a warm and sticky embrace, making travel slightly uncomfortable as the air thickens around you, prompting you to seek shade and stay hydrated.

May Average Humidity in Monticello

This chart illustrates the average monthly humidity levels in Monticello, 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 Monticello is approximately 73%, 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 Monticello

In Monticello 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 Monticello.

Maximum UV Index Levels in Monticello for May

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

Data source: Monticello 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 Monticello Compares to Other Months

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

This table compares monthly weather conditions in Monticello, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (54°F)	70 mm (2.8 inches)	85%	moderate
February Weather	15°C (60°F)	91 mm (3.6 inches)	82%	very high
March Weather	17°C (64°F)	48 mm (1.9 inches)	80%	very high
April Weather	20°C (68°F)	87 mm (3.4 inches)	76%	very high
May Weather	24°C (76°F)	83 mm (3.3 inches)	73%	extreme
June Weather	26°C (80°F)	172 mm (6.8 inches)	74%	extreme
July Weather	27°C (81°F)	181 mm (7.1 inches)	80%	extreme
August Weather	27°C (81°F)	156 mm (6.1 inches)	79%	extreme
September Weather	26°C (80°F)	112 mm (4.4 inches)	83%	very high
October Weather	23°C (74°F)	77 mm (3.0 inches)	77%	very high
November Weather	16°C (61°F)	53 mm (2.1 inches)	84%	high
December Weather	14°C (57°F)	111 mm (4.4 inches)	88%	moderate