October weather forecast
Fort Pierre, SD

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Weather in October

October brings cool autumn breezes and a further dip in temperature to Fort Pierre, displaying vibrant fall foliage around the city. From the temperatures of 76.8°F (24.9°C) in September, it dwindles to lower highs of 58.5°F (14.7°C) in October. The onset of shorter days and longer nights are further indicators of the approaching winter season. Residents and visitors can enjoy the crisp air and stunning fall colors, typical of this month. The end of October might bring the first touch of the coming winter season with the first frost bouts.

Temperature

The shift into October in Fort Pierre is characterized by a noticeable reduction in the average high-temperature, decreasing from September's warm 76.8°F (24.9°C) to a moderate 58.5°F (14.7°C). Fort Pierre, during October, witnesses an average low-temperature of 42.8°F (6°C).

Humidity

In Fort Pierre, the average relative humidity in October is 59%.

Rainfall

In Fort Pierre, in October, during 7.5 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. Throughout the year, in Fort Pierre, there are 98.5 rainfall days, and 13.7" (348mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 1.5 snowfall days, it receives 0.31" (8mm) of snow. In Fort Pierre, South Dakota, during the entire year, snow falls for 41.4 days and aggregates up to 13.07" (332mm) of snow.

Daylight

The average length of the day in October in Fort Pierre is 10h and 58min.
On the first day of the month, sunrise is at 6:40 am and sunset at 6:21 pm. On the last day of October, in Fort Pierre, South Dakota, sunrise is at 7:18 am and sunset at 5:31 pm MDT.

Sunshine

In October, the average sunshine in Fort Pierre is 7h.

UV index

The average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: A maximum UV index of 3 in October translates into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
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Frequently asked questions

What is the average October temperature in Fort Pierre?

In Fort Pierre, 58.5°F (14.7°C) is the average high-temperature and 42.8°F (6°C) is the average low-temperature during October. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is computed to be 87.8°F (31°C).

What is the average humidity in October in Fort Pierre?

In Fort Pierre, South Dakota, the average relative humidity in October is 59%.

How many days does it rain in October in Fort Pierre?

In October, in Fort Pierre, South Dakota, the rain falls for 7.5 days. Throughout October, 0.98" (25mm) of precipitation is accumulated.

When does it start snowing in Fort Pierre?

October is the first month it typically snows. Throughout October, in the average 1.5 snowfall days, it receives 0.31" (8mm) of snow.

How many hours of daylight does Fort Pierre have in October?

In Fort Pierre, the average day length in October is 10h and 58min.

When are sunrise and sunset in October in Fort Pierre?

On the first day of October in Fort Pierre, South Dakota, sunrise is at 6:40 am and sunset at 6:21 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:31 pm MDT.

How many hours of sunshine does Fort Pierre have in October?

In October, the average sunshine duration in Fort Pierre is 7h.

How high is the UV index in October in Fort Pierre?

In Fort Pierre, South Dakota, the average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Fort Pierre, SD

Average temperature in October - Fort Pierre, SD
  • Average high temperature in October: 58.5°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (26.2°F).

  • Average low temperature in October: 42.8°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).

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Average pressure in October
Fort Pierre, SD

Average pressure in October - Fort Pierre, SD
  • Average pressure in October: 29.98"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).

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Average wind speed in October
Fort Pierre, SD

Average wind speed in October - Fort Pierre, SD
  • Average wind speed in October: 11.6mph

The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest months (with the lowest average wind speed) are February and August (9.9mph).

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Average humidity in October
Fort Pierre, SD

Average humidity in October - Fort Pierre, SD
  • Average humidity in October: 59%

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are August and September (52%).

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Average rainfall in October
Fort Pierre, SD

Average rainfall in October - Fort Pierre, SD
  • Average rainfall in October: 0.98"

The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is January (0.35").

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Average rainfall days in October
Fort Pierre, SD

Average rainfall days in October - Fort Pierre, SD
  • Average rainfall days in October: 7.5 days

The month with the highest number of rainy days is June (14.2 days).
The month with the least rainy days is February (2.4 days).

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Average snowfall in October
Fort Pierre, SD

Average snowfall in October - Fort Pierre, SD
  • Average snowfall in October: 0.31"

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

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Average snowfall days in October
Fort Pierre, SD

Average snowfall days in October - Fort Pierre, SD
  • Average snowfall days in October: 1.5 days

The month with the highest number of snowfall days is February (10 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in October /
Average sunshine in October
Fort Pierre, SD

Average daylight in October / Average sunshine in October - Fort Pierre, SD
  • Average daylight in October: 11h and 0min

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 October: 7h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

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Average sunshine days in October
Fort Pierre, SD

Average sunshine days in October - Fort Pierre, SD
  • Average sunshine days in October: 21.3 days

The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is June (13.7 days).

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Average UV index in October
Fort Pierre, SD

Average UV index in October - Fort Pierre, SD
  • Average UV index in October: 3

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

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Average cloud cover in October
Fort Pierre, SD

Average cloud cover in October - Fort Pierre, SD
  • Average cloud cover in October: 30

The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 19).

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Average visibility in October
Fort Pierre, SD

Average visibility in October - Fort Pierre, SD
  • Average visibility in October: 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).

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Fort Pierre, South Dakota, USA

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