October weather forecastMellette, SD
October
Weather in October
October, like September, is a moderate autumn month in Mellette, South Dakota, with an average temperature ranging between max 56.3°F (13.5°C) and min 40.1°F (4.5°C).Temperature
As Mellette steps into October, the average high-temperature decreases significantly from the a warm 74.3°F (23.5°C) of September to a refreshing 56.3°F (13.5°C). Mellette records an average nighttime low-temperature of 40.1°F (4.5°C) throughout October.Humidity
In October, the average relative humidity in Mellette, South Dakota, is 64%.Rainfall
In Mellette, South Dakota, in October, during 7.8 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. In Mellette, South Dakota, during the entire year, the rain falls for 97.2 days and collects up to 18.35" (466mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. October is the first month it typically snows in Mellette, South Dakota. Throughout October, in the average 2.1 snowfall days, it receives 0.51" (13mm) of snow. In Mellette, during the entire year, snow falls for 54.8 days and aggregates up to 19.13" (486mm) of snow.Daylight
In Mellette, the average length of the day in October is 10h and 56min.On the first day of October, sunrise is at 7:33 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 8:12 am and sunset at 6:22 pm CDT.
Sunshine
The average sunshine in October in Mellette is 6.4h.UV index
In Mellette, the average daily maximum UV index in October is 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: A typical high UV index of 2 in October suggests the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Mellette, SD
- Average high temperature in October: 56.3°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (20.7°F).
- Average low temperature in October: 40.1°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (6.3°F).
Average pressure in October
Mellette, 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
Mellette, SD
- Average wind speed in October: 10.4mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).
Average humidity in October
Mellette, SD
- Average humidity in October: 64%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are August and September (60%).
Average rainfall in October
Mellette, SD
- Average rainfall in October: 1.61"
The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in October
Mellette, SD
- Average rainfall days in October: 7.8 days
The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is February (2 days).
Average snowfall in October
Mellette, SD
- Average snowfall in October: 0.51"
The month with the highest snowfall is January (3.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Mellette, SD
- Average snowfall days in October: 2.1 days
The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Mellette, 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: 6h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in October
Mellette, SD
- Average sunshine days in October: 19.8 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is June (12.7 days).
Average UV index in October
Mellette, SD
- Average UV index in October: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover in October
Mellette, SD
- Average cloud cover in October: 35
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and August (Cloud cover 23).
Average visibility in October
Mellette, 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).
