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August Weather in Fort Defiance, United States

Last updated: June 24, 2025

In Fort Defiance, United States, the average temperature in August hovers around 22°C (72°F), with lows dipping to 9°C (48°F) and highs reaching up to 33°C (93°F). Expect 24 mm (0.9 in) of precipitation over the course of 7 days, creating a welcoming, humid environment with an average humidity level of 46%.

August Temperature in Fort Defiance

In August in Fort Defiance, the average temperature is 22°C (72°F). The maximum can reach 33°C (93°F), while the minimum can drop as low as 9°C (48°F). This pleasant climate makes Fort Defiance an ideal destination for travelers looking to enjoy both warm and cool moments.

August Weather in Fort Defiance: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Fort Defiance, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fort Defiance, August typically has an average temperature of 22°C (72°F), with highs reaching up to 33°C (93°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec293240515971737265524130
Data source: Temperature data for Fort Defiance 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 Fort Defiance

In Fort Defiance in August, the precipitation amount is 24 mm (0.9 in) over the course of 7 days.

August Precipitation Trends in Fort Defiance

The chart displays monthly precipitation patterns in Fort Defiance, 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 Fort Defiance, August typically receives around 24 mm (0.9 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec31364316216482433271929
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Fort Defiance

In Fort Defiance in August humidity is 46%. With an average temperature of 22°C (72°F), this humidity feels like a comfortable and pleasant atmosphere for traveling, allowing you to explore and enjoy the sights without feeling too sticky or overwhelmed by heat.

August Average Humidity in Fort Defiance

This chart illustrates the average monthly humidity levels in Fort Defiance, 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 Fort Defiance is approximately 46%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%83%71%61%48%36%37%46%62%74%82%82%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Fort Defiance

In Fort Defiance in August, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Fort Defiance.

Maximum UV Index Levels in Fort Defiance for August

The chart shows the monthly maximum UV Index (UVI) for Fort Defiance 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 Fort Defiance typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589111213131211864
Data source: Fort Defiance 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 Fort Defiance Compares to Other Months

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

This table compares monthly weather conditions in Fort Defiance, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)31 mm (1.2 inches)81%moderate
February Weather0°C (33°F)36 mm (1.4 inches)83%very high
March Weather5°C (40°F)43 mm (1.7 inches)71%very high
April Weather10°C (51°F)16 mm (0.6 inches)61%extreme
May Weather15°C (59°F)21 mm (0.8 inches)48%extreme
June Weather22°C (71°F)6 mm (0.2 inches)36%extreme
July Weather23°C (73°F)48 mm (1.9 inches)37%extreme
August Weather22°C (72°F)24 mm (0.9 inches)46%extreme
September Weather18°C (65°F)33 mm (1.3 inches)62%extreme
October Weather11°C (52°F)26 mm (1.0 inches)74%very high
November Weather5°C (42°F)19 mm (0.7 inches)82%high
December Weather-1°C (31°F)29 mm (1.2 inches)82%moderate

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