August weather forecast
Walnut Grove, CA

Share

Weather in August

The last month of the summer, August, is another hot month in Walnut Grove, California, with an average temperature fluctuating between 57.7°F (14.3°C) and 90.1°F (32.3°C).

Temperature

Walnut Grove notes an average high-temperature of a still tropical 90.1°F (32.3°C) in August, displaying minor variation from July. Walnut Grove encounters a significant temperature differential, with an average low-temperature of 57.7°F (14.3°C) during August nights.

Heat index

August's average heat index is computed to be a very hot 96.8°F (36°C). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
Heat index determinations are made taking into account the shade and light air movements. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gives an indication of how one might feel in terms of heat after considering humidity. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Walnut Grove, the average relative humidity in August is 53%.

Rainfall

August is the only month when rain does not fall.

Daylight

The average length of the day in August is 13h and 36min.
On the first day of the month, sunrise is at 6:09 am and sunset at 8:15 pm. On the last day of August, in Walnut Grove, sunrise is at 6:35 am and sunset at 7:36 pm PDT.

Sunshine

The average sunshine in August is 12h.

UV index

The months with the highest UV index in Walnut Grove are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: A daily maximum UV index of 6 in August translates into the following instructions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.

Frequently asked questions

How hot is it in Walnut Grove in August?

Walnut Grove in August has an average high-temperature of 90.1°F (32.3°C) and an average low-temperature of 57.7°F (14.3°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 96.8°F (36°C).

What is the average humidity in August in Walnut Grove?

The average relative humidity in August in Walnut Grove is 53%.

What is the driest month in Walnut Grove?

August is the only month when rain does not fall in Walnut Grove.

Does it rain in Walnut Grove in August?

In August, it doesn't rain. July is the latest month when it rains.

How many hours of daylight does Walnut Grove have in August?

In Walnut Grove, the average day length in August is 13h and 36min.

What time are sunrise and sunset in August in Walnut Grove?

On the first day of August, sunrise is at 6:09 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:36 pm PDT.

How long on average sun shines in August in Walnut Grove?

In Walnut Grove, the average sunshine duration in August is 12h.

When is the highest UV index in Walnut Grove?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Walnut Grove, California.

What is the UV index intensity in August in Walnut Grove?

The average daily maximum UV index in August in Walnut Grove is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Walnut Grove, CA

Average temperature in August - Walnut Grove, CA
  • Average high temperature in August: 90.1°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is December (55°F).

  • Average low temperature in August: 57.7°F

The month with the highest average low temperature is September (58.1°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).

Average pressure in August
Walnut Grove, CA

Average pressure in August - Walnut Grove, CA
  • Average pressure in August: 29.92"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in August
Walnut Grove, CA

Average wind speed in August - Walnut Grove, CA
  • Average wind speed in August: 7mph

The windiest month (with the highest average wind speed) is June (7.6mph).
The calmest month (with the lowest average wind speed) is November (4.7mph).

Average humidity in August
Walnut Grove, CA

Average humidity in August - Walnut Grove, CA
  • Average humidity in August: 53%

The months with the highest relative humidity are January and March (74%).
The month with the lowest relative humidity is September (49%).

Average rainfall in August
Walnut Grove, CA

Average rainfall in August - Walnut Grove, CA
  • Average rainfall in August: 0"

The wettest month (with the highest rainfall) is February (2.17").
The driest month (with the least rainfall) is August (0").

Average rainfall days in August
Walnut Grove, CA

Average rainfall days in August - Walnut Grove, CA
  • Average rainfall days in August: 0.7 days

The month with the highest number of rainy days is March (13 days).
The month with the least rainy days is August (0.7 days).

Average daylight in August /
Average sunshine in August
Walnut Grove, CA

Average daylight in August / Average sunshine in August - Walnut Grove, CA
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in August: 12h and 0min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

Average sunshine days in August
Walnut Grove, CA

Average sunshine days in August - Walnut Grove, CA
  • Average sunshine days in August: 29.9 days

The month with the most sunshine days is August (29.9 days).
The month with the least sunshine days is March (17.3 days).

Average UV index in August
Walnut Grove, CA

Average UV index in August - Walnut Grove, CA
  • Average UV index in August: 6

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in August
Walnut Grove, CA

Average cloud cover in August - Walnut Grove, CA
  • Average cloud cover in August: 6

The months with the most cloud cover are March and December (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 4).

Average visibility in August
Walnut Grove, CA

Average visibility in August - Walnut Grove, CA
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Walnut Grove, California, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location