August weather forecast
Chamberlain, SD

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Weather in August

August sees a slight dip in temperatures, but it remains unmistakably summer in Chamberlain, South Dakota. The month continues the pattern of scarce rainfall and long, sunny days. Even though the temperature drops slightly from the July highs, the weather remains noticeably hot and dry. As the month draws to an end, there is an anticipation of cooler temperatures with the transition to autumn around the corner. The dipping average maximum wind speed to 9.9mph (15.9km/h) ensures a calmer atmosphere during the high summer temperatures.

Temperature

August's advent presents an average high-temperature of a moderately hot 85.8°F (29.9°C), indicating a slight variation from the conditions of the previous month. Chamberlain's temperature in August declines substantially from daytime highs, settling at a consistent average of 63.7°F (17.6°C) during the nights.

Heat index

The heat index value during August is evaluated at a tropical 89.6°F (32°C). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.
The heat index's values are generally associated with conditions in shade and light breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful 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 Chamberlain, the average relative humidity in August is 59%.

Rainfall

In August, the rain falls for 11 days. Throughout August, 1.5" (38mm) of precipitation is accumulated. In Chamberlain, during the entire year, the rain falls for 107.6 days and collects up to 17.83" (453mm) of precipitation.

Snowfall

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

Daylight

In August, the average length of the day in Chamberlain is 13h and 56min.
On the first day of August, sunrise is at 6:26 am and sunset at 9:00 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 8:14 pm CDT.

Sunshine

In August, the average sunshine is 11h.

UV index

The months with the highest UV index in Chamberlain are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 6 during August translates into the following directions:
Inhibit overexposure. Warding off sun damage is of utmost importance. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot in Chamberlain during August?

In August, in Chamberlain, the average high-temperature is 85.8°F (29.9°C), and the average low-temperature is 63.7°F (17.6°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, is evaluated at 89.6°F (32°C).

What is the average humidity in August in Chamberlain?

In Chamberlain, the average relative humidity in August is 59%.

How many days does it rain in August in Chamberlain?

In Chamberlain, South Dakota, during August, the rain falls for 11 days and regularly aggregates up to 1.5" (38mm) of precipitation.

When it does not snow in Chamberlain?

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

How many hours of daylight does Chamberlain have in August?

In August, the average day length in Chamberlain, South Dakota, is 13h and 56min.

When are sunrise and sunset in August in Chamberlain?

On the first day of August in Chamberlain, South Dakota, sunrise is at 6:26 am and sunset at 9:00 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 8:14 pm CDT.

How long on average sun shines in August in Chamberlain?

In Chamberlain, the average sunshine duration in August is 11h.

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

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

What is the UV index intensity in August in Chamberlain?

In Chamberlain, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health threat 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
Chamberlain, SD

Average temperature in August - Chamberlain, SD
  • Average high temperature in August: 85.8°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (26.1°F).

  • Average low temperature in August: 63.7°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).

Average pressure in August
Chamberlain, SD

Average pressure in August - Chamberlain, SD
  • Average pressure in August: 29.91"Hg

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

Average wind speed in August
Chamberlain, SD

Average wind speed in August - Chamberlain, SD
  • Average wind speed in August: 9.1mph

The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is August (9.1mph).

Average humidity in August
Chamberlain, SD

Average humidity in August - Chamberlain, SD
  • Average humidity in August: 59%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is September (58%).

Average rainfall in August
Chamberlain, SD

Average rainfall in August - Chamberlain, SD
  • Average rainfall in August: 1.5"

The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is November (0.55").

Average rainfall days in August
Chamberlain, SD

Average rainfall days in August - Chamberlain, SD
  • Average rainfall days in August: 11 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (3.3 days).

Average snowfall in August
Chamberlain, SD

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

The month with the highest snowfall is February (3.66").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Chamberlain, SD

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

The months with the highest number of snowfall days are January and February (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

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

  • Average sunshine in August: 11h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in August
Chamberlain, SD

Average sunshine days in August - Chamberlain, SD
  • Average sunshine days in August: 17.2 days

The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is April (11.8 days).

Average UV index in August
Chamberlain, SD

Average UV index in August - Chamberlain, SD
  • Average UV index in August: 6

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is February (UV index 1).

Average cloud cover in August
Chamberlain, SD

Average cloud cover in August - Chamberlain, SD
  • Average cloud cover in August: 20

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 20).

Average visibility in August
Chamberlain, SD

Average visibility in August - Chamberlain, 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).

Chamberlain, South Dakota, USA

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