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August Weather in Denville, United States

Last updated: June 24, 2025

In August, the average temperature in Denville, United States hovers around 23°C (74°F), providing a pleasant climate for outdoor activities. Expect minimum temperatures to dip to 12°C (53°F) and maximums to reach a warm 34°C (94°F). With an average precipitation of 136 mm (5.4 in) spread over 13 days, it’s wise to keep an umbrella handy. The average humidity stands at 65%, adding a touch of tropical feel to the air.

August Temperature in Denville

In August in Denville, the weather is generally pleasant, making it an ideal time for travelers to explore and enjoy outdoor activities.

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

The chart illustrates August temperature patterns in Denville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Denville, August typically has an average temperature of 23°C (74°F), with highs reaching up to 34°C (94°F) and lows dropping to around 12°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec313439506069757367574235
Data source: Temperature data for Denville 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 Denville

In Denville in August, the precipitation amount reaches 136 mm (5.4 in) over a span of 13 days.

August Precipitation Trends in Denville

The chart displays monthly precipitation patterns in Denville, 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 Denville, August typically receives around 136 mm (5.4 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec721019711713710214213611114390112
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Denville

In Denville in August, humidity is 65%. With an average temperature of 23°C (74°F), this humidity feels like a warm, sticky embrace, making outdoor activities somewhat challenging but still enjoyable with the right planning.

August Average Humidity in Denville

This chart illustrates the average monthly humidity levels in Denville, 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 Denville is approximately 65%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Denville

In Denville 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 Denville.

Maximum UV Index Levels in Denville for August

The chart shows the monthly maximum UV Index (UVI) for Denville 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 Denville typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356810101098642
Data source: Denville 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 Denville Compares to Other Months

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

This table compares monthly weather conditions in Denville, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)72 mm (2.8 inches)84%moderate
February Weather1°C (34°F)101 mm (4.0 inches)82%moderate
March Weather4°C (39°F)97 mm (3.8 inches)81%high
April Weather10°C (50°F)117 mm (4.6 inches)78%very high
May Weather16°C (60°F)137 mm (5.4 inches)69%very high
June Weather21°C (70°F)102 mm (4.0 inches)69%very high
July Weather24°C (76°F)142 mm (5.6 inches)62%very high
August Weather23°C (74°F)136 mm (5.4 inches)65%very high
September Weather19°C (67°F)111 mm (4.4 inches)68%very high
October Weather14°C (57°F)143 mm (5.6 inches)74%high
November Weather6°C (43°F)90 mm (3.5 inches)82%moderate
December Weather2°C (35°F)112 mm (4.4 inches)80%low

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