September weather forecast
Bryant, SD

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Weather in September

September, the first month of the autumn in Bryant, is still a pleasant month, with an average temperature varying between 51.3°F (10.7°C) and 71.6°F (22°C).

Temperature

September signifies a gentle decline in Bryant's average high-temperature, easing from a warm 80.1°F (26.7°C) in August to a pleasant 71.6°F (22°C). During September, Bryant observes a consistent average nighttime temperature of 51.3°F (10.7°C).

Humidity

September and October, with an average relative humidity of 68%, are the least humid months.

Rainfall

In Bryant, South Dakota, in September, it is raining for 10.4 days, with typically 1.57" (40mm) of accumulated precipitation. In Bryant, during the entire year, the rain falls for 112.3 days and collects up to 18.78" (477mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in September in Bryant is 12h and 30min.
On the first day of the month, sunrise is at 6:53 am and sunset at 8:05 pm. On the last day of September, in Bryant, sunrise is at 7:27 am and sunset at 7:11 pm CDT.

Sunshine

In September, the average sunshine in Bryant is 8.8h.

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 4 suggests these recommendations:
Ensure safety - Sun damage prevention is strongly urged. Minimize direct exposure to the Sun during midday when its radiation is at its peak. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September in Bryant?

In Bryant, 71.6°F (22°C) is the average high-temperature and 51.3°F (10.7°C) is the average low-temperature during September. In July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is estimated at 84.2°F (29°C).

What is the least humid month in Bryant?

September and October, with an average relative humidity of 68%, are the least humid months in Bryant, South Dakota.

What is the average humidity in September in Bryant?

In September, the average relative humidity in Bryant is 68%.

How many days does it rain in September in Bryant?

In Bryant, in September, during 10.4 rainfall days, 1.57" (40mm) of precipitation is typically accumulated.

When it does not snow in Bryant?

In Bryant, South Dakota, snow does not fall in June through September.

Does it snow in Bryant in September?

In Bryant, South Dakota, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Bryant have in September?

In September, the average day length is 12h and 30min.

When is the sunrise / sunset in September in Bryant?

In September, on the first day of the month, sunrise is at 6:53 am and sunset at 8:05 pm. On the last day of the month, in Bryant, South Dakota, sunrise is at 7:27 am and sunset at 7:11 pm CDT.

How long on average sun shines in September in Bryant?

In Bryant, the average sunshine duration in September is 8.8h.

How high is the UV index in September in Bryant?

The average daily maximum UV index in September in Bryant, South Dakota, is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from unsafe 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 September
Bryant, SD

Average temperature in September - Bryant, SD
  • Average high temperature in September: 71.6°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (19.4°F).

  • Average low temperature in September: 51.3°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (5.5°F).

Average pressure in September
Bryant, SD

Average pressure in September - Bryant, SD
  • Average pressure in September: 29.97"Hg

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

Average wind speed in September
Bryant, SD

Average wind speed in September - Bryant, SD
  • Average wind speed in September: 10mph

The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).

Average humidity in September
Bryant, SD

Average humidity in September - Bryant, SD
  • Average humidity in September: 68%

The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are September and October (68%).

Average rainfall in September
Bryant, SD

Average rainfall in September - Bryant, SD
  • Average rainfall in September: 1.57"

The wettest month (with the highest rainfall) is June (3.19").
The driest months (with the least rainfall) are January and February (0.59").

Average rainfall days in September
Bryant, SD

Average rainfall days in September - Bryant, SD
  • Average rainfall days in September: 10.4 days

The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (2.7 days).

Average snowfall in September
Bryant, SD

Average snowfall in September - Bryant, SD
  • Average snowfall in September: 0"

The months with the highest snowfall are January and December (3.74").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Bryant, SD

Average snowfall days in September - Bryant, SD
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in September /
Average sunshine in September
Bryant, SD

Average daylight in September / Average sunshine in September - Bryant, SD
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in September: 8h and 5min

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 36min).

Average sunshine days in September
Bryant, SD

Average sunshine days in September - Bryant, SD
  • Average sunshine days in September: 18.2 days

The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is June (10.3 days).

Average UV index in September
Bryant, SD

Average UV index in September - Bryant, SD
  • Average UV index in September: 4

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

Average cloud cover in September
Bryant, SD

Average cloud cover in September - Bryant, SD
  • Average cloud cover in September: 30

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in September
Bryant, SD

Average visibility in September - Bryant, SD
  • Average visibility in September: 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).

Bryant, South Dakota, USA

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