October weather forecast
Delmont, SD

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Weather in October

October, like September, is a moderate autumn month in Delmont, South Dakota, with an average temperature fluctuating between 42.4°F (5.8°C) and 59.4°F (15.2°C).

Temperature

A noticeable downshift in temperatures is seen as September gives way to October, with average highs moving from a moderately hot 76.3°F (24.6°C) to a refreshing 59.4°F (15.2°C). October nights cool down to an average low-temperature of 42.4°F (5.8°C).

Humidity

The least humid month is October, with an average relative humidity of 63%.

Rainfall

In Delmont, in October, it is raining for 7.6 days, with typically 1.5" (38mm) of accumulated precipitation. In Delmont, during the entire year, the rain falls for 106.8 days and collects up to 19.29" (490mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 1.1 snowfall days, it receives 0.31" (8mm) of snow. In Delmont, during the entire year, snow falls for 33.1 days and aggregates up to 12.91" (328mm) of snow.

Daylight

The average length of the day in October is 11h and 1min.
On the first day of the month, sunrise is at 7:30 am and sunset at 7:13 pm. On the last day of October, sunrise is at 8:07 am and sunset at 6:25 pm CDT.

Sunshine

In October, the average sunshine is 6.5h.

UV index

In Delmont, the average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index, 3 in October, converts into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Delmont in October?

In October, the average high-temperature and low-temperature are 59.4°F (15.2°C) and 42.4°F (5.8°C) respectively. In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, is estimated at 89.6°F (32°C).

What is the least humid month?

The least humid month is October, with an average relative humidity of 63%.

What is the average humidity in October?

The average relative humidity in October is 63%.

How many days does it rain in October?

In Delmont, in October, during 7.6 rainfall days, 1.5" (38mm) of precipitation is typically accumulated.

When does it start to snow?

October is the first month it typically snows. Throughout October, in the average 1.1 snowfall days, it receives 0.31" (8mm) of snow.

What is the average length of the day in October?

In October, the average day length is 11h and 1min.

When is the sunrise / sunset in October?

On the first day of October in Delmont, sunrise is at 7:30 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 8:07 am and sunset at 6:25 pm CDT.

How long on average sun shines in October?

In October, the average sunshine duration is 6.5h.

How high is the UV index in October?

In Delmont, the average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Delmont, SD

Average temperature in October - Delmont, SD
  • Average high temperature in October: 59.4°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 (26.2°F).

  • Average low temperature in October: 42.4°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).

Average pressure in October
Delmont, SD

Average pressure in October - Delmont, SD
  • Average pressure in October: 29.99"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in October
Delmont, SD

Average wind speed in October - Delmont, 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 (8.5mph).

Average humidity in October
Delmont, SD

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

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (63%).

Average rainfall in October
Delmont, SD

Average rainfall in October - Delmont, SD
  • Average rainfall in October: 1.5"

The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is February (0.51").

Average rainfall days in October
Delmont, SD

Average rainfall days in October - Delmont, SD
  • Average rainfall days in October: 7.6 days

The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is January (2.5 days).

Average snowfall in October
Delmont, SD

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

The month with the highest snowfall is December (2.56").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in October
Delmont, SD

Average snowfall days in October - Delmont, SD
  • Average snowfall days in October: 1.1 days

The month with the highest number of snowfall days is December (7.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 18min).
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 0min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in October
Delmont, SD

Average sunshine days in October - Delmont, SD
  • Average sunshine days in October: 20.8 days

The month with the most sunshine days is November (22.8 days).
The month with the least sunshine days is June (11.8 days).

Average UV index in October
Delmont, SD

Average UV index in October - Delmont, 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, February, November and December (UV index 2).

Average cloud cover in October
Delmont, SD

Average cloud cover in October - Delmont, SD
  • Average cloud cover in October: 31

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 23).

Average visibility in October
Delmont, SD

Average visibility in October - Delmont, 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).

Delmont, South Dakota, USA

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