October weather forecast
Delmont, SD

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Weather in October

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

Temperature

As September transitions into October, Delmont sees a clear drop in the average high-temperature, declining from a moderately hot 76.3°F (24.6°C) to a moderate 59.4°F (15.2°C). The average low-temperature, in October, is a cold 42.4°F (5.8°C).

Humidity

With an average relative humidity of 63%, October is the least humid month in Delmont.

Rainfall

In Delmont, in October, during 7.6 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. Throughout the year, in Delmont, there are 106.8 rainfall days, and 19.29" (490mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Delmont, South Dakota, the average length of the day in October is 11h and 1min.
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.

Sunshine

In Delmont, the average sunshine in October 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 exposure to the Sun's UV rays for average individuals.
Note: A maximum high daily UV index of 3 during October translates into the following directions:
Put precautions into practice - Guidance to elude sunburn is provided. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
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Frequently asked questions

What is the usual temperature for Delmont in October?

During October, Delmont experiences an average high-temperature of 59.4°F (15.2°C) and a low-temperature of 42.4°F (5.8°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is appraised at 89.6°F (32°C).

What is the least humid month in Delmont?

October is the least humid month in Delmont, South Dakota, with an average relative humidity of 63%.

What is the average humidity in October in Delmont?

The average relative humidity in October in Delmont is 63%.

How many days does it rain in October in Delmont?

In Delmont, South Dakota, in October, it is raining for 7.6 days, with typically 1.5" (38mm) of accumulated precipitation.

When does it start to snow in Delmont?

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

How many hours of daylight does Delmont have in October?

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

When are sunrise and sunset in October in Delmont?

In October, on the first day of the month, 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 many hours of sunshine does Delmont have in October?

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

What is the UV index intensity in October in Delmont?

The average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe 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).

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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).

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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).

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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%).

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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").

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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).

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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").

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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).

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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).

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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).

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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).

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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).

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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).

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Delmont, South Dakota, USA

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