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August Weather in Walnut Grove, United States

Last updated: June 24, 2025

In August, the average temperature in Walnut Grove, United States is a pleasant 20°C (69°F). Expect a range that can dip to a minimum of 8°C (47°F) and soar to a maximum of 39°C (103°F). Rainfall is modest, with about 13 mm (0.5 in) spread over 3 days, while the average humidity rests at a comfortable 74%.

August Temperature in Walnut Grove

In August in Walnut Grove, the average temperature is 20°C (69°F), with maximums reaching 39°C (103°F) and minimums dropping to as low as 8°C (47°F). Be prepared for warm days and cooler nights, making it a perfect time for exploring the outdoors while enjoying a comfortable climate.

August Weather in Walnut Grove: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Walnut Grove, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Walnut Grove, August typically has an average temperature of 20°C (69°F), with highs reaching up to 39°C (103°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec403945505762676963524540
Data source: Temperature data for Walnut Grove 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 Walnut Grove

In Walnut Grove in August, the precipitation amount is 13 mm (0.5 in) over a span of 3 days.

August Precipitation Trends in Walnut Grove

The chart displays monthly precipitation patterns in Walnut Grove, 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 Walnut Grove, August typically receives around 13 mm (0.5 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec24626018916686751013111199260273
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Walnut Grove

In Walnut Grove in August, humidity is 74%. With an average temperature of 20°C (69°F), this humidity feels like a warm blanket wrapping around you, making outdoor activities a bit sticky and requiring frequent breaks for hydration, but with the right pacing, you can still enjoy the sights and sounds of your surroundings.

August Average Humidity in Walnut Grove

This chart illustrates the average monthly humidity levels in Walnut Grove, 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 Walnut Grove is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%85%83%83%84%82%74%71%81%87%87%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Walnut Grove

In Walnut Grove in August, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Walnut Grove.

Maximum UV Index Levels in Walnut Grove for August

The chart shows the monthly maximum UV Index (UVI) for Walnut Grove 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 Walnut Grove typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2356991087532
Data source: Walnut Grove 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 Walnut Grove Compares to Other Months

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

This table compares monthly weather conditions in Walnut Grove, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)246 mm (9.7 inches)85%low
February Weather4°C (40°F)260 mm (10.2 inches)84%moderate
March Weather7°C (45°F)189 mm (7.4 inches)85%moderate
April Weather10°C (50°F)166 mm (6.5 inches)83%high
May Weather14°C (57°F)86 mm (3.4 inches)83%very high
June Weather17°C (63°F)75 mm (3.0 inches)83%very high
July Weather20°C (68°F)10 mm (0.4 inches)82%very high
August Weather20°C (69°F)13 mm (0.5 inches)74%very high
September Weather17°C (63°F)111 mm (4.4 inches)71%high
October Weather11°C (52°F)199 mm (7.8 inches)81%moderate
November Weather7°C (46°F)260 mm (10.2 inches)87%moderate
December Weather5°C (40°F)273 mm (10.7 inches)87%low

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