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

Fort Pierre's transition into October is marked by a clear drop in the average high-temperature, receding from a warm 76.8°F (24.9°C) in September to a moderate 58.5°F (14.7°C). During October, the average low-temperature is recorded at a frosty 42.8°F (6°C).

Humidity

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

Rainfall

In Fort Pierre, in October, it is raining for 7.5 days, with typically 0.98" (25mm) of accumulated precipitation. In Fort Pierre, during the entire year, the rain falls for 98.5 days and collects up to 13.7" (348mm) of precipitation.

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. Throughout the year, there are 41.4 snowfall days, and 13.07" (332mm) of snow is accumulated.

Daylight

In October, the average length of the day 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, sunrise is at 7:18 am and sunset at 5:31 pm MDT.

Sunshine

In October, the average sunshine is 7h.

UV index

In Fort Pierre, the average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: An average UV index of 3 in October transforms into this advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Fort Pierre in October?

Fort Pierre in October has an average high-temperature of 58.5°F (14.7°C) and an average low-temperature of 42.8°F (6°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 87.8°F (31°C).

What is the average humidity in October?

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

How many days does it rain in October?

In Fort Pierre, in October, it is raining for 7.5 days, with typically 0.98" (25mm) of accumulated precipitation.

When does it start to snow?

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

What is the average length of the day in October in Fort Pierre?

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

When is the sunrise / sunset in October?

In October, on the first day of the month, 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 long on average sun shines in October?

In October, the average sunshine duration is 7h.

What is the UV index intensity in October?

In October, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Fort Pierre, South Dakota, USA

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