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August Weather in Jefferson, United States

Last updated: June 24, 2025

In Jefferson, United States, the average temperature in August hovers around 20°C (69°F). Expect a minimum of 10°C (51°F) and a maximum of 30°C (86°F). During this period, you can anticipate 133 mm (5.2 in) of precipitation spread over 14 days, with an average humidity level of 66%.

August Temperature in Jefferson

In August in Jefferson, the average temperature is 20°C (69°F). Maximums can reach 30°C (86°F) and minimums can be as low as 10°C (51°F). This pleasant climate makes Jefferson an ideal destination for outdoor activities and exploration during this time of year.

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

The chart illustrates August temperature patterns in Jefferson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jefferson, August typically has an average temperature of 20°C (69°F), with highs reaching up to 30°C (86°F) and lows dropping to around 10°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec344044526066706864564238
Data source: Temperature data for Jefferson 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 Jefferson

In Jefferson in August, the precipitation amount is 133 mm (5.2 in) occurring over the course of 14 days.

August Precipitation Trends in Jefferson

The chart displays monthly precipitation patterns in Jefferson, 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 Jefferson, August typically receives around 133 mm (5.2 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec8812911214314013210313312613076107
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Jefferson

In Jefferson in August humidity is 66%. With an average temperature of 20°C (69°F), this humidity feels like a gentle enveloping warmth, making it comfortable for traveling but with a slight stickiness that may encourage you to seek shade or refreshments frequently.

August Average Humidity in Jefferson

This chart illustrates the average monthly humidity levels in Jefferson, 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 Jefferson is approximately 66%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%86%84%83%83%79%66%68%78%89%86%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Jefferson

In Jefferson 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 Jefferson.

Maximum UV Index Levels in Jefferson for August

The chart shows the monthly maximum UV Index (UVI) for Jefferson 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 Jefferson typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468111111111110863
Data source: Jefferson 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 Jefferson Compares to Other Months

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

This table compares monthly weather conditions in Jefferson, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)88 mm (3.5 inches)87%moderate
February Weather4°C (40°F)129 mm (5.1 inches)87%high
March Weather7°C (44°F)112 mm (4.4 inches)86%very high
April Weather11°C (52°F)143 mm (5.6 inches)84%extreme
May Weather16°C (61°F)140 mm (5.5 inches)83%extreme
June Weather19°C (66°F)132 mm (5.2 inches)83%extreme
July Weather21°C (70°F)103 mm (4.0 inches)79%extreme
August Weather20°C (69°F)133 mm (5.2 inches)66%extreme
September Weather18°C (65°F)126 mm (5.0 inches)68%very high
October Weather13°C (56°F)130 mm (5.1 inches)78%very high
November Weather6°C (42°F)76 mm (3.0 inches)89%high
December Weather3°C (38°F)107 mm (4.2 inches)86%moderate

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