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 signals a considerable drop in Stephan's average high-temperature, reducing from a moderately hot 75.4°F (24.1°C) in September to a moderate 56.8°F (13.8°C). Stephan witnesses a consistent average low-temperature of 41.2°F (5.1°C) throughout October.Humidity
In October, the average relative humidity in Stephan 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
Months with snowfall are January through May, October through December. October is the first month it typically snows. 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
The average length of the day in October 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
In Stephan, the average sunshine in October is 6.4h.UV index
In October, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In October, the UV index of 2 transforms into the following advice:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Stephan in October?
What is the average humidity in October?
How many days does it rain in October?
When does it start snowing?
What is the average length of the day in October?
When is the sunrise / sunset in October?
How long on average sun shines in October?
How high is the UV index in October?
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
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