October weather forecastBig Stone City, SD
October
Weather in October
October, the same as September, in Big Stone City, South Dakota, is a moderate autumn month, with an average temperature fluctuating between 41°F (5°C) and 55.8°F (13.2°C).Temperature
The transition from September to October brings a clear temperature drop, with average high-temperatures decreasing from an agreeable 73°F (22.8°C) to a refreshing 55.8°F (13.2°C). Big Stone City's temperature drops to an average low of 41°F (5°C) during the nights of October.Humidity
With an average relative humidity of 66%, October is the least humid month.Rainfall
In Big Stone City, South Dakota, in October, during 8.6 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. In Big Stone City, during the entire year, the rain falls for 106.9 days and collects up to 19.84" (504mm) 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 1.2 snowfall days, it receives 0.24" (6mm) of snow. Throughout the year, there are 53.5 snowfall days, and 20.31" (516mm) of snow is accumulated.Daylight
In October, the average length of the day is 10h and 56min.On the first day of October, sunrise is at 7:24 am and sunset at 7:05 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 6:14 pm CDT.
Sunshine
The average sunshine in October is 5.8h.UV index
The average daily maximum UV index in October is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 2 in October converts into the following recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Big Stone City, SD
- Average high temperature in October: 55.8°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: 41°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (5.5°F).
Average pressure in October
Big Stone City, 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).
Average wind speed in October
Big Stone City, SD
- Average wind speed in October: 10.3mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in October
Big Stone City, 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%).
Average rainfall in October
Big Stone City, SD
- Average rainfall in October: 1.85"
The wettest month (with the highest rainfall) is June (3.07").
The driest month (with the least rainfall) is February (0.55").
Average rainfall days in October
Big Stone City, SD
- Average rainfall days in October: 8.6 days
The month with the highest number of rainy days is June (16.1 days).
The month with the least rainy days is February (1.8 days).
Average snowfall in October
Big Stone City, SD
- Average snowfall in October: 0.24"
The month with the highest snowfall is December (4.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Big Stone City, SD
- Average snowfall days in October: 1.2 days
The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Big Stone City, SD
- Average daylight in October: 10h and 54min
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 48min
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 42min).
Average sunshine days in October
Big Stone City, SD
- Average sunshine days in October: 18.7 days
The months with the most sunshine days are October and November (18.7 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in October
Big Stone City, SD
- Average UV index in October: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in October
Big Stone City, SD
- Average cloud cover in October: 37
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 25).
Average visibility in October
Big Stone City, 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).





