August weather forecast
Gettysburg, SD

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Weather in August

August, the last month of the summer in Gettysburg, is another warm month, with temperature in the range of an average high of 83.8°F (28.8°C) and an average low of 63°F (17.2°C).

Temperature

August's advent denotes a minor fluctuation in the average high-temperature to a still warm 83.8°F (28.8°C) from July's 85.8°F (29.9°C). Gettysburg encounters an average low-temperature of 63°F (17.2°C) during August nights.

Heat index

The heat index in August is estimated at a tropical 86°F (30°C). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.
Heat index readings emphasize conditions of light breezes and shaded spots. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', comes about by integrating the temperature readings with the humidity levels. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.

Humidity

The months with the lowest humidity are August and September, with an average relative humidity of 56%.

Rainfall

In Gettysburg, South Dakota, in August, during 11.3 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. In Gettysburg, during the entire year, the rain falls for 97.8 days and collects up to 16.65" (423mm) of precipitation.

Snowfall

In Gettysburg, snow does not fall in June through September.

Daylight

In August, the average length of the day in Gettysburg, South Dakota, is 14h and 1min.
On the first day of the month, sunrise is at 6:26 am and sunset at 9:06 pm. On the last day of August, in Gettysburg, sunrise is at 7:01 am and sunset at 8:18 pm CDT.

Sunshine

In August, the average sunshine is 10.7h.

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 unprotected exposure to Sun's UV rays for average individuals.
Note: A typical high UV index of 6 in August suggests the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. 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. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Gettysburg in August?

An average high-temperature, in August, in Gettysburg, is 83.8°F (28.8°C) and the average low-temperature is 63°F (17.2°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in August is estimated at 86°F (30°C).

What are the least humid months in Gettysburg?

The months with the lowest humidity in Gettysburg are August and September, with an average relative humidity of 56%.

What is the average humidity in August in Gettysburg?

The average relative humidity in August in Gettysburg, South Dakota, is 56%.

How many days does it rain in August in Gettysburg?

In Gettysburg, South Dakota, in August, during 11.3 rainfall days, 1.42" (36mm) of precipitation is typically accumulated.

When it does not snow in Gettysburg?

June through September are months without snowfall in Gettysburg, South Dakota.

How many hours of daylight does Gettysburg have in August?

The average day length in August is 14h and 1min.

What time are sunrise and sunset in August in Gettysburg?

On the first day of August in Gettysburg, sunrise is at 6:26 am and sunset at 9:06 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 8:18 pm CDT.

How long on average sun shines in August in Gettysburg?

In August, the average sunshine duration in Gettysburg, South Dakota, is 10.7h.

What is the month with the highest UV index in Gettysburg?

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

What is the UV index reading in August in Gettysburg?

In Gettysburg, South Dakota, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to Sun's UV rays.
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
Gettysburg, SD

Average temperature in August - Gettysburg, SD
  • Average high temperature in August: 83.8°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (22.6°F).

  • Average low temperature in August: 63°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (9.1°F).

Average pressure in August
Gettysburg, SD

Average pressure in August - Gettysburg, SD
  • Average pressure in August: 29.9"Hg

The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in August
Gettysburg, SD

Average wind speed in August - Gettysburg, SD
  • Average wind speed in August: 9.7mph

The windiest month (with the highest average wind speed) is April (11.8mph).
The calmest month (with the lowest average wind speed) is August (9.7mph).

Average humidity in August
Gettysburg, SD

Average humidity in August - Gettysburg, SD
  • Average humidity in August: 56%

The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are August and September (56%).

Average rainfall in August
Gettysburg, SD

Average rainfall in August - Gettysburg, SD
  • Average rainfall in August: 1.42"

The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.55").

Average rainfall days in August
Gettysburg, SD

Average rainfall days in August - Gettysburg, SD
  • Average rainfall days in August: 11.3 days

The month with the highest number of rainy days is June (14.4 days).
The month with the least rainy days is February (1.9 days).

Average snowfall in August
Gettysburg, SD

Average snowfall in August - Gettysburg, SD
  • Average snowfall in August: 0"

The month with the highest snowfall is February (5.04").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Gettysburg, SD

Average snowfall days in August - Gettysburg, SD
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Gettysburg, SD

Average daylight in August / Average sunshine in August - Gettysburg, SD
  • Average daylight in August: 14h and 0min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in August: 10h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in August
Gettysburg, SD

Average sunshine days in August - Gettysburg, SD
  • Average sunshine days in August: 16.7 days

The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is June (13.1 days).

Average UV index in August
Gettysburg, SD

Average UV index in August - Gettysburg, SD
  • 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 1).

Average cloud cover in August
Gettysburg, SD

Average cloud cover in August - Gettysburg, SD
  • Average cloud cover in August: 22

The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 22).

Average visibility in August
Gettysburg, SD

Average visibility in August - Gettysburg, SD
  • Average visibility in August: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

Gettysburg, South Dakota, USA

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