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 is characterized by a noticeable reduction in the average high-temperature, falling from a pleasant 71.6°F (22°C) in September to a cool 53.8°F (12.1°C). Grenville records a consistent low-temperature of 38.7°F (3.7°C) during October nights.Humidity
In October, the average relative humidity is 68%.Rainfall
In Grenville, in October, during 8.8 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. Throughout the year, there are 112.9 rainfall days, and 22.09" (561mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Grenville. October is the first month it typically snows. Throughout October, in the average 2.6 snowfall days, it receives 2.17" (55mm) of snow. In Grenville, during the entire year, snow falls for 68.4 days and aggregates up to 23.74" (603mm) of snow.Daylight
In Grenville, South Dakota, the average length of the day in October is 10h and 56min.On the first day of the month, sunrise is at 7:28 am and sunset at 7:09 pm. On the last day of October, sunrise is at 8:08 am and sunset at 6:17 pm CDT.
Sunshine
The average sunshine in October is 5.9h.UV index
In October, the average daily maximum UV index in Grenville 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 the ordinary person.Note: A daily maximum UV index of 2 in October translates into the following instructions:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Frequently asked questions
What is the average October temperature in Grenville?
What is the average humidity in October in Grenville?
How many days does it rain in October in Grenville?
When does it start to snow in Grenville?
How many hours of daylight does Grenville have in October?
When is the sunrise / sunset in October in Grenville?
How long on average sun shines in October in Grenville?
How high is the UV index in October in Grenville?
Average temperature in October
Grenville, SD
- Average high temperature in October: 53.8°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (18.9°F).
- Average low temperature in October: 38.7°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (5°F).
Average pressure in October
Grenville, SD
- Average pressure in October: 29.98"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in October
Grenville, SD
- Average wind speed in October: 11.3mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is July (8.7mph).
Average humidity in October
Grenville, SD
- Average humidity in October: 68%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is September (66%).
Average rainfall in October
Grenville, SD
- Average rainfall in October: 2.52"
The wettest month (with the highest rainfall) is July (3.58").
The driest month (with the least rainfall) is November (0.63").
Average rainfall days in October
Grenville, SD
- Average rainfall days in October: 8.8 days
The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in October
Grenville, SD
- Average snowfall in October: 2.17"
The month with the highest snowfall is December (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Grenville, SD
- Average snowfall days in October: 2.6 days
The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Grenville, SD
- Average daylight in October: 10h and 5min
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 5min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in October
Grenville, SD
- Average sunshine days in October: 17.6 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in October
Grenville, 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, November and December (UV index 1).
Average cloud cover in October
Grenville, SD
- Average cloud cover in October: 38
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in October
Grenville, SD
- Average visibility in October: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Grenville, South Dakota, USA
Weather forecast for your location
2. Allow the app to use your location
