August Weather in Monticello, United States

Last updated: June 24, 2025

In August, the average temperature in Monticello, United States hovers around 23°C (74°F), providing a pleasant climate for outdoor activities. However, be prepared for temperature fluctuations, as the minimum can drop to 11°C (53°F) while the maximum may reach up to 34°C (93°F). With 101 mm (4.0 in) of precipitation spread over 10 days, it's wise to pack an umbrella. The air is quite humid, with an average humidity level of 82%, adding a touch of mugginess to the warm days. Enjoy your stay!

August Temperature in Monticello

In August in Monticello, the average temperature is 23°C (74°F). The maximum can reach 34°C (93°F), and the minimum can be as low as 11°C (53°F). This makes it an ideal time for travelers to enjoy a pleasant climate while exploring the attractions of Monticello.

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

The chart illustrates August 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, August typically has an average temperature of 23°C (74°F), with highs reaching up to 34°C (93°F) and lows dropping to around 11°C (53°F).

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

August Precipitation in Monticello

In Monticello in August, the precipitation amount is 101 mm (4.0 in) spread over the course of 10 days.

August Precipitation Trends in Monticello

The chart displays monthly precipitation patterns in Monticello, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Monticello, August typically receives around 101 mm (4.0 inches) of precipitation spread over approximately 10 days.

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

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Millimeters (mm) Inches (in)

August Humidity in Monticello

In Monticello in August, 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.

August Average Humidity in Monticello

This chart illustrates the average monthly humidity levels in Monticello, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Monticello is approximately 82%, offering insight into how humid the weather typically is during this month.

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

August UV Index in Monticello

In Monticello in August, 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 Monticello.

Maximum UV Index Levels in Monticello for August

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

Data source: Monticello August 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 August 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 August’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 August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (29°F)	77 mm (3.0 inches)	84%	moderate
February Weather	0°C (32°F)	76 mm (3.0 inches)	82%	moderate
March Weather	6°C (43°F)	118 mm (4.7 inches)	84%	high
April Weather	11°C (52°F)	124 mm (4.9 inches)	83%	very high
May Weather	18°C (65°F)	144 mm (5.7 inches)	80%	very high
June Weather	24°C (75°F)	105 mm (4.1 inches)	83%	extreme
July Weather	25°C (78°F)	92 mm (3.6 inches)	82%	very high
August Weather	23°C (74°F)	101 mm (4.0 inches)	82%	very high
September Weather	21°C (70°F)	79 mm (3.1 inches)	79%	very high
October Weather	14°C (57°F)	118 mm (4.7 inches)	79%	high
November Weather	5°C (42°F)	74 mm (2.9 inches)	88%	moderate
December Weather	2°C (36°F)	54 mm (2.1 inches)	87%	moderate