August weather forecast
Bristol, SD

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Weather in August

The last month of the summer, August, is another warm month in Bristol, South Dakota, with an average temperature varying between 80.1°F (26.7°C) and 58.8°F (14.9°C).

Temperature

The high-temperature average in August for Bristol is a still warm 80.1°F (26.7°C), staying closely aligned with July's conditions. Bristol experiences an average nighttime temperature of 58.8°F (14.9°C) in the month of August.

Humidity

In Bristol, the average relative humidity in August is 67%.

Rainfall

In Bristol, during August, the rain falls for 12.3 days and regularly aggregates up to 2.01" (51mm) of precipitation. Throughout the year, there are 112.9 rainfall days, and 22.09" (561mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Bristol, the average length of the day in August is 14h and 2min.
On the first day of August, sunrise is at 6:16 am and sunset at 8:58 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 8:09 pm CDT.

Sunshine

In Bristol, South Dakota, the average sunshine in August is 10.3h.

UV index

The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: An average maximum UV index of 5 in August leads to these recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures?

An average high-temperature, in August, in Bristol, is 80.1°F (26.7°C) and the average low-temperature is 58.8°F (14.9°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is estimated at 84.2°F (29°C).

What is the average humidity in August?

The average relative humidity in August is 67%.

How much does it rain in August?

In Bristol, during August, the rain falls for 12.3 days and regularly aggregates up to 2.01" (51mm) of precipitation.

When it does not snow?

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

How many hours of daylight does Bristol have in August?

The average day length in August is 14h and 2min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:16 am and sunset at 8:58 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 8:09 pm CDT.

How many hours of sunshine does Bristol have in August?

The average sunshine duration in August is 10.3h.

What is the UV index reading in August?

In August, the average daily maximum UV index in Bristol is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
Bristol, SD

Average temperature in August - Bristol, SD
  • Average high temperature in August: 80.1°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (18.9°F).

  • Average low temperature in August: 58.8°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (5°F).

Average pressure in August
Bristol, SD

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

The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in August
Bristol, SD

Average wind speed in August - Bristol, SD
  • Average wind speed in August: 8.8mph

The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is July (8.7mph).

Average humidity in August
Bristol, SD

Average humidity in August - Bristol, SD
  • Average humidity in August: 67%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is September (66%).

Average rainfall in August
Bristol, SD

Average rainfall in August - Bristol, SD
  • Average rainfall in August: 2.01"

The wettest month (with the highest rainfall) is July (3.58").
The driest month (with the least rainfall) is November (0.63").

Average rainfall days in August
Bristol, SD

Average rainfall days in August - Bristol, SD
  • Average rainfall days in August: 12.3 days

The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is February (2.3 days).

Average snowfall in August
Bristol, SD

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

The month with the highest snowfall is December (4.53").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Bristol, SD

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

The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Bristol, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

Average sunshine days in August
Bristol, SD

Average sunshine days in August - Bristol, SD
  • Average sunshine days in August: 16.5 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is June (10.4 days).

Average UV index in August
Bristol, SD

Average UV index in August - Bristol, SD
  • Average UV index in August: 5

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).

Average cloud cover in August
Bristol, SD

Average cloud cover in August - Bristol, SD
  • Average cloud cover in August: 27

The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 27).

Average visibility in August
Bristol, SD

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

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

Bristol, South Dakota, USA

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