October weather forecast
Fort Thompson, SD

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Weather in October

October, the same as September, in Fort Thompson, South Dakota, is another refreshing autumn month, with an average temperature varying between 58.6°F (14.8°C) and 42.4°F (5.8°C).

Temperature

Fort Thompson's weather in October is characterized by a distinct drop in the average high-temperature, reducing from a moderately hot 76.3°F (24.6°C) in September to a mild 58.6°F (14.8°C). Throughout October, an average nighttime temperature of 42.4°F (5.8°C) is experienced.

Humidity

The average relative humidity in October is 62%.

Rainfall

In Fort Thompson, in October, during 7.8 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. In Fort Thompson, during the entire year, the rain falls for 107.6 days and collects up to 17.83" (453mm) 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 1.6 snowfall days, it receives 0.59" (15mm) of snow. In Fort Thompson, during the entire year, snow falls for 50.9 days and aggregates up to 17.87" (454mm) of snow.

Daylight

The average length of the day in October is 10h and 59min.
On the first day of October, sunrise is at 7:36 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 8:14 am and sunset at 6:28 pm CDT.

Sunshine

In October, the average sunshine is 6.8h.

UV index

The average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: The daily maximum UV index of 3 in October interprets into the following advice:
Exercise caution. Those with pale skin may experience burns in less than half an hour. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in October?

The high-temperature, in October, in Fort Thompson, is 58.6°F (14.8°C), while the low-temperature averages to 42.4°F (5.8°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, is appraised at 89.6°F (32°C).

What is the average humidity in October?

In Fort Thompson, the average relative humidity in October is 62%.

How much does it rain in Fort Thompson in October?

In Fort Thompson, in October, during 7.8 rainfall days, 1.14" (29mm) of precipitation is typically accumulated.

When does it start to snow?

October is the first month it typically snows. Throughout October, in the average 1.6 snowfall days, it receives 0.59" (15mm) of snow.

How many hours of daylight does Fort Thompson have in October?

In October, the average day length is 10h and 59min.

When is the sunrise / sunset in October?

On the first day of October, sunrise is at 7:36 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 8:14 am and sunset at 6:28 pm CDT.

How long on average sun shines in October?

In Fort Thompson, the average sunshine duration in October is 6.8h.

How high is the UV index in October?

The average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
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
Fort Thompson, SD

Average temperature in October - Fort Thompson, SD
  • Average high temperature in October: 58.6°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (26.1°F).

  • Average low temperature in October: 42.4°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).

Average pressure in October
Fort Thompson, SD

Average pressure in October - Fort Thompson, SD
  • Average pressure in October: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in October
Fort Thompson, SD

Average wind speed in October - Fort Thompson, SD
  • Average wind speed in October: 10.7mph

The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is August (9.1mph).

Average humidity in October
Fort Thompson, SD

Average humidity in October - Fort Thompson, SD
  • Average humidity in October: 62%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is September (58%).

Average rainfall in October
Fort Thompson, SD

Average rainfall in October - Fort Thompson, SD
  • Average rainfall in October: 1.14"

The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is November (0.55").

Average rainfall days in October
Fort Thompson, SD

Average rainfall days in October - Fort Thompson, SD
  • Average rainfall days in October: 7.8 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (3.3 days).

Average snowfall in October
Fort Thompson, SD

Average snowfall in October - Fort Thompson, SD
  • Average snowfall in October: 0.59"

The month with the highest snowfall is February (3.66").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in October
Fort Thompson, SD

Average snowfall days in October - Fort Thompson, SD
  • Average snowfall days in October: 1.6 days

The months with the highest number of snowfall days are January and February (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
Fort Thompson, SD

Average daylight in October / Average sunshine in October - Fort Thompson, 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: 8h and 54min).

  • Average sunshine in October: 6h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in October
Fort Thompson, SD

Average sunshine days in October - Fort Thompson, SD
  • Average sunshine days in October: 19.9 days

The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is April (11.8 days).

Average UV index in October
Fort Thompson, SD

Average UV index in October - Fort Thompson, 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 February (UV index 1).

Average cloud cover in October
Fort Thompson, SD

Average cloud cover in October - Fort Thompson, SD
  • Average cloud cover in October: 30

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 20).

Average visibility in October
Fort Thompson, SD

Average visibility in October - Fort Thompson, 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).

Fort Thompson, South Dakota, USA

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