August weather forecast
La Grange, MO

Share

Weather in August

The last month of the summer, August, is another warm month in La Grange, Missouri, with an average temperature fluctuating between 64.9°F (18.3°C) and 83.7°F (28.7°C).

Temperature

With the advent of August, La Grange's high-temperatures adjust to a still warm 83.7°F (28.7°C), closely aligning with the preceding month. Throughout the month of August, La Grange witnesses an average low-temperature of 64.9°F (18.3°C).

Heat index

August's heat index is computed to be a tropical 91.4°F (33°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.

Humidity

In La Grange, the average relative humidity in August is 77%.

Rainfall

In La Grange, in August, it is raining for 12.9 days, with typically 2.32" (59mm) of accumulated precipitation. Throughout the year, in La Grange, there are 137.5 rainfall days, and 27.68" (703mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in August in La Grange is 13h and 42min.
On the first day of August in La Grange, sunrise is at 6:05 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 7:38 pm CDT.

Sunshine

In August, the average sunshine in La Grange is 10.1h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 6 during August leads to these advisories:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot in La Grange during August?

The average high-temperature, in August, in La Grange, is 83.7°F (28.7°C), while the average low-temperature is 64.9°F (18.3°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, in August is computed to be 91.4°F (33°C).

What is the average humidity in August in La Grange?

In La Grange, Missouri, the average relative humidity in August is 77%.

How much does it rain in La Grange in August?

In La Grange, during August, the rain falls for 12.9 days and regularly aggregates up to 2.32" (59mm) of precipitation.

When it does not snow in La Grange?

In La Grange, snow does not fall in May through September.

What is the average length of the day in August in La Grange?

In La Grange, Missouri, the average day length in August is 13h and 42min.

What time are sunrise and sunset in August in La Grange?

On the first day of August, sunrise is at 6:05 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 7:38 pm CDT.

How long on average sun shines in August in La Grange?

In August, the average sunshine duration in La Grange is 10.1h.

What is the month with the highest UV index in La Grange?

June through August, with an average maximum UV index of 6, are months with the highest UV index in La Grange.

What is the UV index intensity in August in La Grange?

In August, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
La Grange, MO

Average temperature in August - La Grange, MO
  • Average high temperature in August: 83.7°F

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in August: 64.9°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

Average pressure in August
La Grange, MO

Average pressure in August - La Grange, MO
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in August
La Grange, MO

Average wind speed in August - La Grange, MO
  • Average wind speed in August: 6.6mph

The windiest months (with the highest average wind speed) are January and February (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).

Average humidity in August
La Grange, MO

Average humidity in August - La Grange, MO
  • Average humidity in August: 77%

The months with the highest relative humidity are May, June and July (80%).
The month with the lowest relative humidity is October (70%).

Average rainfall in August
La Grange, MO

Average rainfall in August - La Grange, MO
  • Average rainfall in August: 2.32"

The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is January (1.26").

Average rainfall days in August
La Grange, MO

Average rainfall days in August - La Grange, MO
  • Average rainfall days in August: 12.9 days

The months with the highest number of rainy days are May and June (17.3 days).
The month with the least rainy days is January (5.3 days).

Average snowfall in August
La Grange, MO

Average snowfall in August - La Grange, MO
  • Average snowfall in August: 0"

The month with the highest snowfall is January (4.21").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
La Grange, MO

Average snowfall days in August - La Grange, MO
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
La Grange, MO

Average daylight in August / Average sunshine in August - La Grange, MO
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in August
La Grange, MO

Average sunshine days in August - La Grange, MO
  • Average sunshine days in August: 15.2 days

The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is June (10.1 days).

Average UV index in August
La Grange, MO

Average UV index in August - La Grange, MO
  • 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 2).

Average cloud cover in August
La Grange, MO

Average cloud cover in August - La Grange, MO
  • Average cloud cover in August: 29

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in August
La Grange, MO

Average visibility in August - La Grange, MO
  • 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).

La Grange, Missouri, USA

Weather forecast for your location

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