October weather forecast
White River, SD

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Weather in October

October, the same as September, in White River, South Dakota, is another refreshing autumn month, with an average temperature ranging between max 59.2°F (15.1°C) and min 42.8°F (6°C).

Temperature

October indicates a noticeable reduction in the average high-temperature, moving down from a moderately hot 76.6°F (24.8°C) in September to a moderate 59.2°F (15.1°C). October nights are marked by an average temperature drop to a frosty 42.8°F (6°C).

Humidity

In October, the average relative humidity is 59%.

Rainfall

In White River, during October, the rain falls for 8 days and regularly aggregates up to 1.3" (33mm) of precipitation. In White River, during the entire year, the rain falls for 103.9 days and collects up to 16.85" (428mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 1.6 snowfall days, it receives 0.63" (16mm) of snow. In White River, during the entire year, snow falls for 39.7 days and aggregates up to 14.45" (367mm) of snow.

Daylight

In White River, the average length of the day in October is 11h and 0min.
On the first day of October, sunrise is at 7:41 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 8:18 am and sunset at 6:34 pm CDT.

Sunshine

In October, the average sunshine is 7h.

UV index

The average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 3 in October interprets into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Updated: Jul 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average October temperature?

The average high-temperature, in October, in White River, is 59.2°F (15.1°C), while the average low-temperature is 42.8°F (6°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in August is calculated to be 89.6°F (32°C).

What is the average humidity in October?

The average relative humidity in October is 59%.

How many days does it rain in October?

In White River, in October, it is raining for 8 days, with typically 1.3" (33mm) of accumulated precipitation.

When does it start to snow?

October is the first month it typically snows. Throughout October, in the average 1.6 snowfall days, it receives 0.63" (16mm) of snow.

What is the average length of the day in October in White River?

In White River, the average day length in October is 11h and 0min.

When are sunrise and sunset in October?

In October, on the first day of the month, sunrise is at 7:41 am and sunset at 7:23 pm. On the last day of the month, in White River, sunrise is at 8:18 am and sunset at 6:34 pm CDT.

How many hours of sunshine does White River have in October?

In White River, South Dakota, the average sunshine duration in October is 7h.

What is the UV index reading in October?

In White River, South Dakota, the average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to 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
White River, SD

Average temperature in October - White River, SD
  • Average high temperature in October: 59.2°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in October: 42.8°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).

Average pressure in October
White River, SD

Average pressure in October - White River, 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
White River, SD

Average wind speed in October - White River, SD
  • Average wind speed in October: 11.6mph

The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest month (with the lowest average wind speed) is August (9.8mph).

Average humidity in October
White River, SD

Average humidity in October - White River, SD
  • Average humidity in October: 59%

The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are August and September (57%).

Average rainfall in October
White River, SD

Average rainfall in October - White River, SD
  • Average rainfall in October: 1.3"

The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in October
White River, SD

Average rainfall days in October - White River, SD
  • Average rainfall days in October: 8 days

The month with the highest number of rainy days is June (15.3 days).
The months with the least rainy days are January and February (2.7 days).

Average snowfall in October
White River, SD

Average snowfall in October - White River, SD
  • Average snowfall in October: 0.63"

The month with the highest snowfall is December (3.19").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in October
White River, SD

Average snowfall days in October - White River, SD
  • Average snowfall days in October: 1.6 days

The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
White River, SD

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

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 October: 7h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

Average sunshine days in October
White River, SD

Average sunshine days in October - White River, SD
  • Average sunshine days in October: 20 days

The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is June (11.2 days).

Average UV index in October
White River, SD

Average UV index in October - White River, SD
  • Average UV index in October: 3

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in October
White River, SD

Average cloud cover in October - White River, SD
  • Average cloud cover in October: 29

The month with the most cloud cover is January (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 20).

Average visibility in October
White River, SD

Average visibility in October - White River, 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).

White River, South Dakota, USA

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