October weather forecast
Long Valley, SD

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Weather in October

October, like September, is a moderate autumn month in Long Valley, South Dakota, with an average temperature fluctuating between 59.2°F (15.1°C) and 43°F (6.1°C).

Temperature

Long Valley's transition into October marks a considerable drop in the average high-temperature, moving down from a warm 77.5°F (25.3°C) in September to a refreshing 59.2°F (15.1°C). Long Valley's nights in October experience an average temperature drop to a chilly 43°F (6.1°C).

Humidity

In October, the average relative humidity is 56%.

Rainfall

In Long Valley, during October, the rain falls for 7.2 days and regularly aggregates up to 1.14" (29mm) of precipitation. In Long Valley, during the entire year, the rain falls for 95.3 days and collects up to 13.74" (349mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 1.5 snowfall days, it receives 0.71" (18mm) of snow. In Long Valley, during the entire year, snow falls for 38.8 days and aggregates up to 16.1" (409mm) of snow.

Daylight

The average length of the day in October is 11h and 0min.
On the first day of October, sunrise is at 6:44 am and sunset at 6:26 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:38 pm MDT.

Sunshine

In Long Valley, the average sunshine in October is 7.2h.

UV index

In October, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: An average UV index of 3 in October transforms into this advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average October temperature?

The high-temperature, in October, in Long Valley, is 59.2°F (15.1°C), while the low-temperature averages to 43°F (6.1°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in August is appraised at 89.6°F (32°C).

What is the average humidity in October?

In Long Valley, the average relative humidity in October is 56%.

How many days does it rain in October?

In Long Valley, South Dakota, during October, the rain falls for 7.2 days and regularly aggregates up to 1.14" (29mm) of precipitation.

When does it start snowing?

October is the first month it typically snows. Throughout October, in the average 1.5 snowfall days, it receives 0.71" (18mm) of snow.

What is the average length of the day in October?

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

What time are sunrise and sunset in October?

In October, on the first day of the month, sunrise is at 6:44 am and sunset at 6:26 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:38 pm MDT.

How many hours of sunshine does Long Valley have in October?

In Long Valley, the average sunshine duration in October is 7.2h.

How high is the UV index in October in Long Valley?

In October, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium health risk 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
Long Valley, SD

Average temperature in October - Long Valley, SD
  • Average high temperature in October: 59.2°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in October: 43°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

Average pressure in October
Long Valley, SD

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in October
Long Valley, SD

Average wind speed in October - Long Valley, SD
  • Average wind speed in October: 11.5mph

The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is February (10.1mph).

Average humidity in October
Long Valley, SD

Average humidity in October - Long Valley, SD
  • Average humidity in October: 56%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is September (47%).

Average rainfall in October
Long Valley, SD

Average rainfall in October - Long Valley, SD
  • Average rainfall in October: 1.14"

The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is January (0.39").

Average rainfall days in October
Long Valley, SD

Average rainfall days in October - Long Valley, SD
  • Average rainfall days in October: 7.2 days

The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is February (2.6 days).

Average snowfall in October
Long Valley, SD

Average snowfall in October - Long Valley, SD
  • Average snowfall in October: 0.71"

The month with the highest snowfall is February (3.15").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in October
Long Valley, SD

Average snowfall days in October - Long Valley, SD
  • Average snowfall days in October: 1.5 days

The month with the highest number of snowfall days is February (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
Long Valley, SD

Average daylight in October / Average sunshine in October - Long Valley, 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: 7h and 1min

The month with the most sunshine is August (Average sunshine: 11h and 42min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).

Average sunshine days in October
Long Valley, SD

Average sunshine days in October - Long Valley, SD
  • Average sunshine days in October: 20.4 days

The month with the most sunshine days is December (21.1 days).
The months with the least sunshine days are April and June (14.1 days).

Average UV index in October
Long Valley, SD

Average UV index in October - Long Valley, SD
  • Average UV index in October: 3

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in October
Long Valley, SD

Average cloud cover in October - Long Valley, SD
  • Average cloud cover in October: 29

The month with the most cloud cover is January (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 18).

Average visibility in October
Long Valley, SD

Average visibility in October - Long Valley, 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).

Long Valley, South Dakota, USA

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