August weather forecast
Norris, SD

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Weather in August

August, the last month of the summer in Norris, is another hot month, with temperature in the range of an average low of 66.9°F (19.4°C) and an average high of 87.1°F (30.6°C).

Temperature

Norris experiences a minor change to a still hot 87.1°F (30.6°C) in average high-temperature during August, closely reflecting July. During August, Norris experiences a consistent low-temperature average of 66.9°F (19.4°C).

Heat index

August's average heat index is computed to be a hot 89.6°F (32°C). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.
Heat index data is primarily for areas with shade and subjected to light winds. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.

Humidity

In Norris, the average relative humidity in August is 48%.

Rainfall

In August, in Norris, the rain falls for 10.8 days. Throughout August, 1.18" (30mm) of precipitation is accumulated. In Norris, during the entire year, the rain falls for 95.3 days and collects up to 13.74" (349mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in August is 13h and 55min.
On the first day of the month, sunrise is at 6:35 am and sunset at 9:06 pm. On the last day of August, sunrise is at 7:08 am and sunset at 8:21 pm CDT.

Sunshine

August has the most sunshine of the year, with an average of 11.7h of sunshine.

UV index

The average daily maximum UV index in August in Norris is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.
Note: In August, the maximum UV index of 6 transforms into these recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
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 Norris in August?

In Norris, in August, the average high-temperature is 87.1°F (30.6°C), and the average low-temperature is 66.9°F (19.4°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is computed to be 89.6°F (32°C).

What is the average humidity in August in Norris?

In August, the average relative humidity is 48%.

How many days does it rain in August in Norris?

In Norris, in August, it is raining for 10.8 days, with typically 1.18" (30mm) of accumulated precipitation.

When it does not snow in Norris?

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

How many hours of daylight does Norris have in August?

In Norris, the average day length in August is 13h and 55min.

When are sunrise and sunset in August in Norris?

In August, on the first day of the month, sunrise is at 6:35 am and sunset at 9:06 pm. On the last day of the month, in Norris, sunrise is at 7:08 am and sunset at 8:21 pm CDT.

What month has the most sunshine in Norris?

The month with the most sunshine in Norris is August, with an average of 11.7h of sunshine.

How many hours of sunshine does Norris have in August?

The average sunshine duration in August in Norris, South Dakota, is 11.7h.

What is the UV index reading in August in Norris?

In Norris, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health risk 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
Norris, SD

Average temperature in August - Norris, SD
  • Average high temperature in August: 87.1°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in August: 66.9°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

Average pressure in August
Norris, SD

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in August
Norris, SD

Average wind speed in August - Norris, SD
  • Average wind speed in August: 10.2mph

The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is February (10.1mph).

Average humidity in August
Norris, SD

Average humidity in August - Norris, SD
  • Average humidity in August: 48%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is September (47%).

Average rainfall in August
Norris, SD

Average rainfall in August - Norris, SD
  • Average rainfall in August: 1.18"

The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is January (0.39").

Average rainfall days in August
Norris, SD

Average rainfall days in August - Norris, SD
  • Average rainfall days in August: 10.8 days

The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is February (2.6 days).

Average snowfall in August
Norris, SD

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

The month with the highest snowfall is February (3.15").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Norris, SD

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

The month with the highest number of snowfall days is February (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Norris, 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 4min

The month with the most sunshine is August (Average sunshine: 11h and 42min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).

Average sunshine days in August
Norris, SD

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

The month with the most sunshine days is December (21.1 days).
The months with the least sunshine days are April and June (14.1 days).

Average UV index in August
Norris, SD

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

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in August
Norris, SD

Average cloud cover in August - Norris, SD
  • Average cloud cover in August: 18

The month with the most cloud cover is January (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 18).

Average visibility in August
Norris, SD

Average visibility in August - Norris, 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).

Norris, South Dakota, USA

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