October weather forecast
Ethan, SD

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Weather in October

October, like September, is a moderate autumn month in Ethan, South Dakota, with temperature in the range of an average high of 58.5°F (14.7°C) and an average low of 42.1°F (5.6°C).

Temperature

The drop of average high-temperatures is noticeable in October, with a decrease from a warm 76.1°F (24.5°C) in September to a mild 58.5°F (14.7°C). Throughout October, Ethan witnesses a nighttime temperature average of 42.1°F (5.6°C).

Humidity

September and October, with an average relative humidity of 63%, are the least humid months.

Rainfall

In Ethan, during October, the rain falls for 6.8 days and regularly aggregates up to 0.79" (20mm) of precipitation. Throughout the year, there are 93.2 rainfall days, and 11.3" (287mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 0.9 snowfall days, it receives 0.31" (8mm) of snow. In Ethan, during the entire year, snow falls for 35.3 days and aggregates up to 7.17" (182mm) of snow.

Daylight

The average length of the day in October is 11h and 0min.
On the first day of October, sunrise is at 7:30 am and sunset at 7:12 pm. On the last day of the month, sunrise is at 8:07 am and sunset at 6:23 pm CDT.

Sunshine

In October, the average sunshine is 6.5h.

UV index

In Ethan, the average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum UV index of 3 in October translates into the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. During bright days, sunglasses that offer UVA and UVB defense are recommended. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average October temperature?

An average high-temperature, in October, in Ethan, is 58.5°F (14.7°C) and the average low-temperature is 42.1°F (5.6°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 89.6°F (32°C).

What are the least humid months?

September and October, with an average relative humidity of 63%, are the least humid months.

What is the average humidity in October?

In Ethan, the average relative humidity in October is 63%.

How much does it rain in October?

In Ethan, during October, the rain falls for 6.8 days and regularly aggregates up to 0.79" (20mm) of precipitation.

When does it start to snow?

October is the first month it typically snows in Ethan, South Dakota. Throughout October, in the average 0.9 snowfall days, it receives 0.31" (8mm) of snow.

What is the average length of the day in October?

The average day length in October is 11h and 0min.

When are sunrise and sunset in October?

On the first day of October, sunrise is at 7:30 am and sunset at 7:12 pm. On the last day of the month, sunrise is at 8:07 am and sunset at 6:23 pm CDT.

How many hours of sunshine does Ethan have in October?

In Ethan, the average sunshine duration in October is 6.5h.

How high is the UV index in October?

In October, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Ethan, SD

Average temperature in October - Ethan, SD
  • Average high temperature in October: 58.5°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 (24.4°F).

  • Average low temperature in October: 42.1°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (10.2°F).

Average pressure in October
Ethan, SD

Average pressure in October - Ethan, 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 (29.85"Hg).

Average wind speed in October
Ethan, SD

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

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (8.6mph).

Average humidity in October
Ethan, SD

Average humidity in October - Ethan, SD
  • Average humidity in October: 63%

The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are September and October (63%).

Average rainfall in October
Ethan, SD

Average rainfall in October - Ethan, SD
  • Average rainfall in October: 0.79"

The wettest month (with the highest rainfall) is May (1.65").
The driest months (with the least rainfall) are February and November (0.28").

Average rainfall days in October
Ethan, SD

Average rainfall days in October - Ethan, SD
  • Average rainfall days in October: 6.8 days

The month with the highest number of rainy days is June (13.6 days).
The month with the least rainy days is February (1.9 days).

Average snowfall in October
Ethan, SD

Average snowfall in October - Ethan, SD
  • Average snowfall in October: 0.31"

The month with the highest snowfall is February (1.42").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in October
Ethan, SD

Average snowfall days in October - Ethan, SD
  • Average snowfall days in October: 0.9 days

The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in October
Ethan, SD

Average sunshine days in October - Ethan, SD
  • Average sunshine days in October: 22 days

The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is June (12.8 days).

Average UV index in October
Ethan, SD

Average UV index in October - Ethan, 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 January (UV index 1).

Average cloud cover in October
Ethan, SD

Average cloud cover in October - Ethan, SD
  • Average cloud cover in October: 32

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 22).

Average visibility in October
Ethan, SD

Average visibility in October - Ethan, 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).

Ethan, South Dakota, USA

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