Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
October marks a distinct drop in the average high-temperature, descending from September's moderately hot 75.4°F (24.1°C) to a mild 56.8°F (13.8°C). During October, the temperature in Stephan is averaged to a low of 41.2°F (5.1°C) at night.Humidity
In Stephan, South Dakota, the average relative humidity in October is 63%.Rainfall
In Stephan, during October, the rain falls for 7.7 days and regularly aggregates up to 1.1" (28mm) of precipitation. In Stephan, during the entire year, the rain falls for 97.3 days and collects up to 16.73" (425mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. October is the first month it typically snows in Stephan. Throughout October, in the average 1.9 snowfall days, it receives 0.87" (22mm) of snow. In Stephan, during the entire year, snow falls for 47.1 days and aggregates up to 16.06" (408mm) of snow.Daylight
In October, the average length of the day is 10h and 58min.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
The average sunshine in October in Stephan is 6.4h.UV index
In October, the average daily maximum UV index in Stephan is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: In October, a daily maximum UV index of 2 leads to the following instructions:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Frequently asked questions
What are October temperatures in Stephan?
What is the average humidity in October in Stephan?
How many days does it rain in October in Stephan?
When does it start to snow in Stephan?
How many hours of daylight does Stephan have in October?
When is the sunrise / sunset in October in Stephan?
How many hours of sunshine does Stephan have in October?
What is the UV index intensity in October in Stephan?
Average temperature in October
Stephan, SD
- Average high temperature in October: 56.8°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in October: 41.2°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (9.1°F).
Average pressure in October
Stephan, 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 (29.84"Hg).
Average wind speed in October
Stephan, SD
- Average wind speed in October: 11.1mph
The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).
Average humidity in October
Stephan, SD
- Average humidity in October: 63%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is September (60%).
Average rainfall in October
Stephan, SD
- Average rainfall in October: 1.1"
The wettest month (with the highest rainfall) is July (3.07").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in October
Stephan, SD
- Average rainfall days in October: 7.7 days
The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in October
Stephan, SD
- Average snowfall in October: 0.87"
The month with the highest snowfall is February (4.21").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Stephan, SD
- Average snowfall days in October: 1.9 days
The months with the highest number of snowfall days are January and February (10.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in October /
Average sunshine in October
Stephan, SD
- Average daylight in October: 11h and 0min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in October: 6h and 2min
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 6min).
Average sunshine days in October
Stephan, SD
- Average sunshine days in October: 21.2 days
The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in October
Stephan, SD
- Average UV index in October: 2
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
Stephan, SD
- Average cloud cover in October: 34
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 24).
Average visibility in October
Stephan, 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).
Stephan, South Dakota, USA
Weather forecast for your location
2. Allow the app to use your location
