October weather forecast
De Smet, SD

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Weather in October

October, the same as September, in De Smet, South Dakota, is a moderate autumn month, with temperature in the range of an average high of 57.9°F (14.4°C) and an average low of 41.5°F (5.3°C).

Temperature

De Smet's transition into October is marked by a clear drop in the average high-temperature, receding from a moderately hot 75.7°F (24.3°C) in September to a moderate 57.9°F (14.4°C). During the month of October, the temperature falls to an average of 41.5°F (5.3°C).

Humidity

The average relative humidity in October is 63%.

Rainfall

In De Smet, in October, during 8.1 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. In De Smet, during the entire year, the rain falls for 101.8 days and collects up to 18.19" (462mm) of precipitation.

Snowfall

Months with snowfall in De Smet are January through April, October through December. October is the first month it typically snows in De Smet. Throughout October, in the average 1.4 snowfall days, it receives 0.51" (13mm) of snow. Throughout the year, there are 42.3 snowfall days, and 16.54" (420mm) of snow is accumulated.

Daylight

In October, the average length of the day is 10h and 58min.
On the first day of October in De Smet, South Dakota, sunrise is at 7:28 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 8:07 am and sunset at 6:20 pm CDT.

Sunshine

In De Smet, South Dakota, the average sunshine in October is 6.5h.

UV index

In De Smet, the average daily maximum UV index in October is 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 2 in October transforms into the following instructions:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Always opt for UVA and UVB-resistant sunglasses on radiant days. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in De Smet in October?

The average high-temperature and low-temperature during October are 57.9°F (14.4°C) and 41.5°F (5.3°C) respectively. In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, is appraised at 89.6°F (32°C).

What is the average humidity in October in De Smet?

In De Smet, South Dakota, the average relative humidity in October is 63%.

How many days does it rain in October in De Smet?

In De Smet, South Dakota, in October, during 8.1 rainfall days, 1.57" (40mm) of precipitation is typically accumulated.

When does it start snowing in De Smet?

October is the first month it typically snows in De Smet, South Dakota. Throughout October, in the average 1.4 snowfall days, it receives 0.51" (13mm) of snow.

What is the average length of the day in October in De Smet?

The average day length in October in De Smet is 10h and 58min.

When are sunrise and sunset in October in De Smet?

In October, on the first day of the month, sunrise is at 7:28 am and sunset at 7:10 pm. On the last day of the month, in De Smet, sunrise is at 8:07 am and sunset at 6:20 pm CDT.

How long on average sun shines in October in De Smet?

In October, the average sunshine duration is 6.5h.

What is the UV index intensity in October in De Smet?

In October, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from unsafe 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
De Smet, SD

Average temperature in October - De Smet, SD
  • Average high temperature in October: 57.9°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (23.2°F).

  • Average low temperature in October: 41.5°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).

Average pressure in October
De Smet, SD

Average pressure in October - De Smet, 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
De Smet, SD

Average wind speed in October - De Smet, SD
  • Average wind speed in October: 10.6mph

The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (8.6mph).

Average humidity in October
De Smet, SD

Average humidity in October - De Smet, SD
  • Average humidity in October: 63%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is September (62%).

Average rainfall in October
De Smet, SD

Average rainfall in October - De Smet, SD
  • Average rainfall in October: 1.57"

The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.55").

Average rainfall days in October
De Smet, SD

Average rainfall days in October - De Smet, SD
  • Average rainfall days in October: 8.1 days

The month with the highest number of rainy days is June (15.2 days).
The month with the least rainy days is February (1.8 days).

Average snowfall in October
De Smet, SD

Average snowfall in October - De Smet, SD
  • Average snowfall in October: 0.51"

The month with the highest snowfall is February (3.54").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in October
De Smet, SD

Average snowfall days in October - De Smet, SD
  • Average snowfall days in October: 1.4 days

The month with the highest number of snowfall days is December (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
De Smet, SD

Average daylight in October / Average sunshine in October - De Smet, 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: 6h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in October
De Smet, SD

Average sunshine days in October - De Smet, SD
  • Average sunshine days in October: 20.3 days

The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is June (12.3 days).

Average UV index in October
De Smet, SD

Average UV index in October - De Smet, SD
  • Average UV index in October: 2

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 November (UV index 1).

Average cloud cover in October
De Smet, SD

Average cloud cover in October - De Smet, SD
  • Average cloud cover in October: 32

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 22).

Average visibility in October
De Smet, SD

Average visibility in October - De Smet, 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).

De Smet, South Dakota, USA

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