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
As September gives way to October, the average high-temperature displays a considerable decrease, falling from a warm 76.1°F (24.5°C) to a mild 59.7°F (15.4°C). Throughout the month of October, Vermillion expects an average low of 43°F (6.1°C).Humidity
October is the least humid month, with an average relative humidity of 65%.Rainfall
In Vermillion, during October, the rain falls for 8.8 days and regularly aggregates up to 1.69" (43mm) of precipitation. Throughout the year, in Vermillion, there are 116.6 rainfall days, and 21.26" (540mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 0.8 snowfall days, it receives 0.28" (7mm) of snow. Throughout the year, there are 30.7 snowfall days, and 13.9" (353mm) of snow is accumulated.Daylight
The average length of the day in October in Vermillion is 11h and 2min.On the first day of the month, sunrise is at 7:25 am and sunset at 7:08 pm. On the last day of October, in Vermillion, sunrise is at 8:01 am and sunset at 6:21 pm CDT.
Sunshine
In Vermillion, the average sunshine in October is 6.2h.UV index
In October, the average daily maximum UV index in Vermillion is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 3 in October translates into these instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Vermillion in October?
What is the least humid month?
What is the average humidity in October?
How much does it rain in October?
When does it start to snow?
What is the average length of the day in October?
When is the sunrise / sunset in October?
How many hours of sunshine does Vermillion have in October?
How high is the UV index in October?
Average temperature in October
Vermillion, SD
- Average high temperature in October: 59.7°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in October: 43°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (12.9°F).
Average pressure in October
Vermillion, SD
- Average pressure in October: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in October
Vermillion, SD
- Average wind speed in October: 10.3mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in October
Vermillion, SD
- Average humidity in October: 65%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (65%).
Average rainfall in October
Vermillion, SD
- Average rainfall in October: 1.69"
The wettest month (with the highest rainfall) is June (3.35").
The driest months (with the least rainfall) are January and February (0.63").
Average rainfall days in October
Vermillion, SD
- Average rainfall days in October: 8.8 days
The month with the highest number of rainy days is June (17.3 days).
The months with the least rainy days are January and February (2.8 days).
Average snowfall in October
Vermillion, SD
- Average snowfall in October: 0.28"
The months with the highest snowfall are January and February (2.83").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Vermillion, SD
- Average snowfall days in October: 0.8 days
The month with the highest number of snowfall days is February (7.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Vermillion, SD
- Average daylight in October: 11h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in October: 6h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in October
Vermillion, SD
- Average sunshine days in October: 19.8 days
The month with the most sunshine days is January (22.2 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in October
Vermillion, 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 January (UV index 1).
Average cloud cover in October
Vermillion, SD
- Average cloud cover in October: 32
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in October
Vermillion, 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).
Vermillion, South Dakota, USA
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