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
Witnessing a clear drop in October, the average high-temperature declines from September's pleasant 71.4°F (21.9°C) to a fresh 54°F (12.2°C). Nightly temperatures drop to an average low of 36.7°F (2.6°C) in October.Humidity
The average relative humidity in October in Custer is 61%.Rainfall
In Custer, in October, it is raining for 9 days, with typically 1.14" (29mm) of accumulated precipitation. In Custer, during the entire year, the rain falls for 135.4 days and collects up to 20.39" (518mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. In October, in Custer, it is snowing for 5.3 days. Throughout October, 3.66" (93mm) of snow is accumulated. In Custer, during the entire year, snow falls for 75.1 days and aggregates up to 40.24" (1022mm) of snow.Daylight
In October, the average length of the day in Custer is 10h and 59min.On the first day of October, sunrise is at 6:52 am and sunset at 6:34 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:45 pm MDT.
Sunshine
In October, the average sunshine in Custer is 7.1h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: An average UV index of 2 in October transforms into this advice:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
What are October temperatures in Custer?
What is the average humidity in October in Custer?
How much does it rain in Custer in October?
How many days does it snow in October in Custer?
How many hours of daylight does Custer have in October?
When are sunrise and sunset in October in Custer?
How long on average sun shines in October in Custer?
What are the months with the lowest UV index in Custer?
How high is the UV index in October in Custer?
Average temperature in October
Custer, SD
- Average high temperature in October: 54°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (29.8°F).
- Average low temperature in October: 36.7°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is February (16.2°F).
Average pressure in October
Custer, SD
- Average pressure in October: 29.98"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in October
Custer, SD
- Average wind speed in October: 9.1mph
The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in October
Custer, SD
- Average humidity in October: 61%
The months with the highest relative humidity are January and February (77%).
The months with the lowest relative humidity are August and September (52%).
Average rainfall in October
Custer, SD
- Average rainfall in October: 1.14"
The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in October
Custer, SD
- Average rainfall days in October: 9 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is November (4.5 days).
Average snowfall in October
Custer, SD
- Average snowfall in October: 3.66"
The month with the highest snowfall is April (7.24").
The months with the least snowfall are June, July and August (0").
Average snowfall days in October
Custer, SD
- Average snowfall days in October: 5.3 days
The month with the highest number of snowfall days is February (12.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in October /
Average sunshine in October
Custer, SD
- Average daylight in October: 11h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in October: 7h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 0min).
Average sunshine days in October
Custer, SD
- Average sunshine days in October: 17.4 days
The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is May (7.8 days).
Average UV index in October
Custer, SD
- Average UV index in October: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in October
Custer, SD
- Average cloud cover in October: 27
The month with the most cloud cover is April (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in October
Custer, 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).
Custer, South Dakota, USA
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