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August Weather in Monticello, United States

Last updated: June 24, 2025

In Monticello, United States, the average temperature in August hovers around 23°C (74°F), making it quite pleasant. However, be prepared for temperature fluctuations, with minimums dipping to 8°C (46°F) and maximums soaring to 35°C (96°F). During the month, expect a modest 21 mm (0.8 in) of precipitation over 4 days, while the average humidity sits at a comfortable 44%.

August Temperature in Monticello

In August, in Monticello, the average temperature is 23°C (74°F). Maximums can reach 35°C (96°F) while minimums can drop to as low as 8°C (46°F). This weather makes Monticello an ideal destination for travelers, offering a pleasant climate for outdoor activities and exploration.

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 35°C (96°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec273140505971757365504028
Data source: Temperature data for Monticello generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Monticello

In Monticello in August, the precipitation amount is 21 mm (0.8 in) over a span of 4 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 21 mm (0.8 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec354353182811322126371934
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Monticello

In Monticello in August humidity is 44%. With an average temperature of 23°C (74°F), this humidity feels like a comfortable embrace, making it pleasant for traveling and exploring the sights without feeling overly hot or sticky.

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 44%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%76%69%53%40%36%44%59%74%83%86%
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 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 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 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478101212121110753
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.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)35 mm (1.4 inches)85%moderate
February Weather0°C (31°F)43 mm (1.7 inches)86%high
March Weather5°C (41°F)53 mm (2.1 inches)76%very high
April Weather10°C (50°F)18 mm (0.7 inches)69%very high
May Weather15°C (59°F)28 mm (1.1 inches)53%extreme
June Weather22°C (72°F)10 mm (0.4 inches)40%extreme
July Weather24°C (76°F)32 mm (1.3 inches)36%extreme
August Weather23°C (74°F)21 mm (0.8 inches)44%extreme
September Weather18°C (65°F)26 mm (1.0 inches)59%very high
October Weather10°C (50°F)37 mm (1.4 inches)74%high
November Weather4°C (40°F)19 mm (0.8 inches)83%moderate
December Weather-2°C (29°F)34 mm (1.3 inches)85%moderate

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