August weather forecast
Geddes, SD

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Weather in August

August, the last month of the summer in Geddes, is another warm month, with an average temperature fluctuating between 62.8°F (17.1°C) and 85.1°F (29.5°C).

Temperature

The arrival of August sees a recorded average high-temperature of a moderately hot 85.1°F (29.5°C), showing little divergence from the previous month's conditions. Contrasted against daytime highs, Geddes records an average nighttime low of 62.8°F (17.1°C) in August.

Heat index

For most parts of August, the heat index is calculated to be a hot 91.4°F (33°C). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values remain especially vital for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.

Humidity

In Geddes, the average relative humidity in August is 65%.

Rainfall

In Geddes, in August, during 11.3 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. In Geddes, during the entire year, the rain falls for 104.1 days and collects up to 14.29" (363mm) of precipitation.

Snowfall

In Geddes, snow does not fall in May through September.

Daylight

The average length of the day in August is 13h and 54min.
On the first day of August, sunrise is at 6:25 am and sunset at 8:56 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 8:10 pm CDT.

Sunshine

The average sunshine in August is 10.5h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 6 in August interprets into the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Experience reduced UV exposure by about half when donning a wide-brim hat.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during August?

In August, the average high-temperature and low-temperature are 85.1°F (29.5°C) and 62.8°F (17.1°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, in August is calculated to be 91.4°F (33°C).

What is the average humidity in August?

The average relative humidity in August is 65%.

How many days does it rain in August?

In Geddes, South Dakota, in August, during 11.3 rainfall days, 1.46" (37mm) of precipitation is typically accumulated.

When it does not snow?

In Geddes, snow does not fall in May through September.

What is the average length of the day in August?

The average day length in August is 13h and 54min.

When are sunrise and sunset in August?

On the first day of August in Geddes, sunrise is at 6:25 am and sunset at 8:56 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 8:10 pm CDT.

How long on average sun shines in August?

In Geddes, the average sunshine duration in August is 10.5h.

What are the months with the highest UV index?

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

What is the UV index reading in August?

In Geddes, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health threat from unprotected exposure to 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
Geddes, SD

Average temperature in August - Geddes, SD
  • Average high temperature in August: 85.1°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in August: 62.8°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).

Average pressure in August
Geddes, SD

Average pressure in August - Geddes, SD
  • Average pressure in August: 29.92"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in August
Geddes, SD

Average wind speed in August - Geddes, SD
  • Average wind speed in August: 8.5mph

The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).

Average humidity in August
Geddes, SD

Average humidity in August - Geddes, SD
  • Average humidity in August: 65%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (62%).

Average rainfall in August
Geddes, SD

Average rainfall in August - Geddes, SD
  • Average rainfall in August: 1.46"

The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is February (0.31").

Average rainfall days in August
Geddes, SD

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

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (2.9 days).

Average snowfall in August
Geddes, SD

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

The months with the highest snowfall are January and March (1.93").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Geddes, SD

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

The month with the highest number of snowfall days is January (8.2 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
Geddes, SD

Average daylight in August / Average sunshine in August - Geddes, SD
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in August: 10h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in August
Geddes, SD

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

The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is June (12.3 days).

Average UV index in August
Geddes, SD

Average UV index in August - Geddes, 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 2).

Average cloud cover in August
Geddes, SD

Average cloud cover in August - Geddes, SD
  • Average cloud cover in August: 24

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 23).

Average visibility in August
Geddes, SD

Average visibility in August - Geddes, SD
  • 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).

Geddes, South Dakota, USA

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