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August Weather in Mount Washington, United States

Last updated: June 24, 2025

In August, the average temperature in Mount Washington, United States is a comfortable 25°C (77°F), making it an ideal time to explore this destination. However, be prepared for a range, as temperatures can dip to a minimum of 13°C (56°F) and rise to a maximum of 35°C (95°F). You might encounter 95 mm (3.8 in) of precipitation spread over 12 days, so pack an umbrella just in case! The average humidity hovers around 74%, contributing to a warm, tropical feel.

August Temperature in Mount Washington

In August in Mount Washington, the average temperature is 25°C (77°F). Maximums can reach 35°C (95°F), and minimums can be as low as 13°C (56°F). This climate makes it an ideal time for travelers to enjoy outdoor activities while being prepared for varying temperatures.

August Weather in Mount Washington: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Mount Washington, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mount Washington, August typically has an average temperature of 25°C (77°F), with highs reaching up to 35°C (95°F) and lows dropping to around 13°C (56°F).
JanFebMarAprMayJunJulAugSepOctNovDec364048566874787672614541
Data source: Temperature data for Mount Washington 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 Mount Washington

In Mount Washington in August, the precipitation amount is 95 mm (3.8 in) spread over 12 days.

August Precipitation Trends in Mount Washington

The chart displays monthly precipitation patterns in Mount Washington, 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 Mount Washington, August typically receives around 95 mm (3.8 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec931421371421211611019611910288115
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Mount Washington

In Mount Washington in August humidity is 74%. With an average temperature of 25°C (77°F), this humidity feels like a warm, muggy blanket wrapping around you, making travel a bit more challenging as you find yourself sticky and in need of frequent breaks to hydrate and cool down.

August Average Humidity in Mount Washington

This chart illustrates the average monthly humidity levels in Mount Washington, 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 Mount Washington is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%82%83%83%80%74%71%78%88%88%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Mount Washington

In Mount Washington in August, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Mount Washington.

Maximum UV Index Levels in Mount Washington for August

The chart shows the monthly maximum UV Index (UVI) for Mount Washington 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 Mount Washington typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101110109753
Data source: Mount Washington 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 Mount Washington Compares to Other Months

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

This table compares monthly weather conditions in Mount Washington, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)93 mm (3.7 inches)87%moderate
February Weather5°C (41°F)142 mm (5.6 inches)86%moderate
March Weather9°C (48°F)137 mm (5.4 inches)86%high
April Weather13°C (56°F)142 mm (5.6 inches)82%very high
May Weather20°C (68°F)121 mm (4.7 inches)82%very high
June Weather24°C (75°F)161 mm (6.3 inches)83%extreme
July Weather26°C (79°F)101 mm (4.0 inches)80%very high
August Weather25°C (77°F)95 mm (3.8 inches)74%very high
September Weather22°C (72°F)119 mm (4.7 inches)71%very high
October Weather16°C (61°F)102 mm (4.0 inches)78%high
November Weather7°C (46°F)88 mm (3.5 inches)88%moderate
December Weather5°C (42°F)115 mm (4.5 inches)88%moderate

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