October weather forecast
Selby, SD

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Weather in October

October, like September, is another mild autumn month in Selby, South Dakota, with an average temperature ranging between max 55.9°F (13.3°C) and min 41.4°F (5.2°C).

Temperature

Selby's weather in October is characterized by a distinct drop in the average high-temperature, reducing from a moderately hot 74.5°F (23.6°C) in September to a moderate 55.9°F (13.3°C). October generally records an average low-temperature of 41.4°F (5.2°C).

Humidity

In Selby, the average relative humidity in October is 60%.

Rainfall

In Selby, in October, during 7.5 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. In Selby, during the entire year, the rain falls for 89.4 days and collects up to 15.39" (391mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. October is the first month it typically snows in Selby. Throughout October, in the average 1.6 snowfall days, it receives 0.98" (25mm) of snow. Throughout the year, there are 49.4 snowfall days, and 19.09" (485mm) of snow is accumulated.

Daylight

In October, the average length of the day in Selby is 10h and 55min.
On the first day of October, sunrise is at 7:39 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 8:19 am and sunset at 6:28 pm CDT.

Sunshine

In Selby, the average sunshine in October is 6.6h.

UV index

In Selby, the average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: In October, an average UV index of 3 transforms into the following instructions:
Be vigilant - Preventing sunburn is recommended. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in October in Selby?

The average high-temperature and low-temperature in Selby, South Dakota, during October are 55.9°F (13.3°C) and 41.4°F (5.2°C) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 86°F (30°C).

What is the average humidity in October in Selby?

The average relative humidity in October in Selby is 60%.

How many days does it rain in October in Selby?

In Selby, in October, during 7.5 rainfall days, 1.38" (35mm) of precipitation is typically accumulated.

When does it start snowing in Selby?

October is the first month it typically snows in Selby. Throughout October, in the average 1.6 snowfall days, it receives 0.98" (25mm) of snow.

What is the average length of the day in October in Selby?

In Selby, South Dakota, the average day length in October is 10h and 55min.

When is the sunrise / sunset in October in Selby?

On the first day of October, sunrise is at 7:39 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 8:19 am and sunset at 6:28 pm CDT.

How long on average sun shines in October in Selby?

In Selby, South Dakota, the average sunshine duration in October is 6.6h.

How high is the UV index in October in Selby?

In Selby, 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 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
Selby, SD

Average temperature in October - Selby, SD
  • Average high temperature in October: 55.9°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (23°F).

  • Average low temperature in October: 41.4°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (9°F).

Average pressure in October
Selby, SD

Average pressure in October - Selby, SD
  • Average pressure in October: 29.98"Hg

The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in October
Selby, SD

Average wind speed in October - Selby, SD
  • Average wind speed in October: 11.4mph

The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is February (9.4mph).

Average humidity in October
Selby, SD

Average humidity in October - Selby, SD
  • Average humidity in October: 60%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (52%).

Average rainfall in October
Selby, SD

Average rainfall in October - Selby, SD
  • Average rainfall in October: 1.38"

The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in October
Selby, SD

Average rainfall days in October - Selby, SD
  • Average rainfall days in October: 7.5 days

The month with the highest number of rainy days is June (13.8 days).
The month with the least rainy days is February (1.3 days).

Average snowfall in October
Selby, SD

Average snowfall in October - Selby, SD
  • Average snowfall in October: 0.98"

The month with the highest snowfall is February (3.98").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in October
Selby, SD

Average snowfall days in October - Selby, SD
  • Average snowfall days in October: 1.6 days

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
Selby, SD

Average daylight in October / Average sunshine in October - Selby, SD
  • Average daylight in October: 10h and 5min

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 October: 6h and 4min

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 6min).

Average sunshine days in October
Selby, SD

Average sunshine days in October - Selby, SD
  • Average sunshine days in October: 21 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (13.6 days).

Average UV index in October
Selby, SD

Average UV index in October - Selby, SD
  • Average UV index in October: 3

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

Average cloud cover in October
Selby, SD

Average cloud cover in October - Selby, SD
  • Average cloud cover in October: 34

The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 21).

Average visibility in October
Selby, SD

Average visibility in October - Selby, SD
  • Average visibility in October: 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).

Selby, South Dakota, USA

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