October weather forecast
Summit, SD

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Weather in October

October, the same as September, is a cool autumn month in Summit, South Dakota, with temperature in the range of an average high of 55.2°F (12.9°C) and an average low of 40.1°F (4.5°C).

Temperature

October's arrival witnesses a distinct temperature drop, receding from September's agreeable 72.5°F (22.5°C) to a fresh 55.2°F (12.9°C). Summit experiences a steady low-temperature of 40.1°F (4.5°C) throughout October.

Humidity

The least humid month in Summit is October, with an average relative humidity of 66%.

Rainfall

In October, in Summit, the rain falls for 8.8 days. Throughout October, 1.77" (45mm) of precipitation is accumulated. In Summit, during the entire year, the rain falls for 115.2 days and collects up to 19.88" (505mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Summit, South Dakota. October is the first month it typically snows. Throughout October, in the average 1.6 snowfall days, it receives 0.31" (8mm) of snow. In Summit, during the entire year, snow falls for 58.8 days and aggregates up to 20.39" (518mm) of snow.

Daylight

In Summit, the average length of the day in October is 10h and 56min.
On the first day of October, sunrise is at 7:27 am and sunset at 7:07 pm. On the last day of the month, sunrise is at 8:06 am and sunset at 6:16 pm CDT.

Sunshine

In October, the average sunshine is 5.9h.

UV index

In October, the average daily maximum UV index in Summit is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 2 in October transforms into the following instructions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
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Frequently asked questions

What is the temperature in October in Summit?

The average high-temperature and low-temperature in Summit during October are 55.2°F (12.9°C) and 40.1°F (4.5°C) respectively. In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is computed to be 84.2°F (29°C).

What is the least humid month in Summit?

With an average relative humidity of 66%, October is the least humid month in Summit.

What is the average humidity in October in Summit?

The average relative humidity in October in Summit is 66%.

How many days does it rain in October in Summit?

In Summit, South Dakota, during October, the rain falls for 8.8 days and regularly aggregates up to 1.77" (45mm) of precipitation.

When does it start snowing in Summit?

October is the first month it typically snows. Throughout October, in the average 1.6 snowfall days, it receives 0.31" (8mm) of snow.

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

The average day length in October in Summit is 10h and 56min.

What time are sunrise and sunset in October in Summit?

On the first day of October in Summit, sunrise is at 7:27 am and sunset at 7:07 pm. On the last day of the month, sunrise is at 8:06 am and sunset at 6:16 pm CDT.

How many hours of sunshine does Summit have in October?

In October, the average sunshine duration in Summit, South Dakota, is 5.9h.

What is the UV index reading in October in Summit?

The average daily maximum UV index in October in Summit is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to 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
Summit, SD

Average temperature in October - Summit, SD
  • Average high temperature in October: 55.2°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (19.6°F).

  • Average low temperature in October: 40.1°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (6.1°F).

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Average pressure in October
Summit, SD

Average pressure in October - Summit, 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 (29.86"Hg).

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Average wind speed in October
Summit, SD

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

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (8mph).

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Average humidity in October
Summit, SD

Average humidity in October - Summit, SD
  • Average humidity in October: 66%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (66%).

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Average rainfall in October
Summit, SD

Average rainfall in October - Summit, SD
  • Average rainfall in October: 1.77"

The wettest month (with the highest rainfall) is June (3.11").
The driest months (with the least rainfall) are January and February (0.63").

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Average rainfall days in October
Summit, SD

Average rainfall days in October - Summit, SD
  • Average rainfall days in October: 8.8 days

The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is February (2.3 days).

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Average snowfall in October
Summit, SD

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

The month with the highest snowfall is December (4.49").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in October
Summit, SD

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

The month with the highest number of snowfall days is January (13.1 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
Summit, SD

Average daylight in October / Average sunshine in October - Summit, 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: 5h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in October
Summit, SD

Average sunshine days in October - Summit, SD
  • Average sunshine days in October: 18.5 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is June (9.6 days).

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Average UV index in October
Summit, SD

Average UV index in October - Summit, SD
  • Average UV index in October: 2

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in October
Summit, SD

Average cloud cover in October - Summit, SD
  • Average cloud cover in October: 36

The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 25).

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Average visibility in October
Summit, SD

Average visibility in October - Summit, 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).

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Summit, South Dakota, USA

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