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's onset witnesses a marked shift in the average high-temperature, moving from a pleasant 71.6°F (22°C) in September to a fresh 53.8°F (12.1°C). During October nights, Grenville witnesses a consistent average temperature of 38.7°F (3.7°C).Humidity
In Grenville, the average relative humidity in October is 68%.Rainfall
In Grenville, South Dakota, in October, it is raining for 8.8 days, with typically 2.52" (64mm) of accumulated precipitation. 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, South Dakota. October is the first month it typically snows. Throughout October, in the average 2.6 snowfall days, it receives 2.17" (55mm) of snow. Throughout the year, there are 68.4 snowfall days, and 23.74" (603mm) of snow is accumulated.Daylight
In October, the average length of the day 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
In October, the average sunshine is 5.9h.UV index
In October, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: The UV index of 2 during October leads to these advisories:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in October?
What is the average humidity in October?
How much does it rain in October?
When does it start snowing?
What is the average length of the day in October in Grenville?
When are sunrise and sunset in October?
How many hours of sunshine does Grenville have in October?
What is the UV index intensity in October?
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
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