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 arrival witnesses a distinct temperature drop, receding from September's warm 74.5°F (23.6°C) to a moderate 55.9°F (13.3°C). Nighttime temperature experiences an average drop to a wintry 41.4°F (5.2°C) in October.Humidity
In Eureka, the average relative humidity in October is 60%.Rainfall
In Eureka, in October, it is raining for 7.5 days, with typically 1.38" (35mm) of accumulated precipitation. In Eureka, during the entire year, the rain falls for 89.4 days and collects up to 15.39" (391mm) of precipitation.Snowfall
Months with snowfall in Eureka are January through May, October through December. October is the first month it typically snows in Eureka, South Dakota. Throughout October, in the average 1.6 snowfall days, it receives 0.98" (25mm) of snow. In Eureka, during the entire year, snow falls for 49.4 days and aggregates up to 19.09" (485mm) of snow.Daylight
The average length of the day in October is 10h and 55min.On the first day of the month, sunrise is at 7:37 am and sunset at 7:17 pm. On the last day of October, sunrise is at 8:18 am and sunset at 6:25 pm CDT.
Sunshine
In Eureka, the average sunshine in October is 6.6h.UV index
In Eureka, the average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The average daily UV index of 3 in October transforms into the following instructions:
Ensure safety - Sun damage prevention is strongly urged. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average October temperature in Eureka?
What is the average humidity in October in Eureka?
How much does it rain in Eureka in October?
When does it start snowing in Eureka?
What is the average length of the day in October in Eureka?
What time are sunrise and sunset in October in Eureka?
How long on average sun shines in October in Eureka?
What is the UV index intensity in October in Eureka?
Average temperature in October
Eureka, SD
- Average high temperature in October: 55.9°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (23°F).
- Average low temperature in October: 41.4°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (9°F).
Average pressure in October
Eureka, SD
- Average pressure in October: 29.98"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in October
Eureka, SD
- Average wind speed in October: 11.4mph
The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is February (9.4mph).
Average humidity in October
Eureka, SD
- Average humidity in October: 60%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (52%).
Average rainfall in October
Eureka, SD
- Average rainfall in October: 1.38"
The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in October
Eureka, SD
- Average rainfall days in October: 7.5 days
The month with the highest number of rainy days is June (13.8 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in October
Eureka, SD
- Average snowfall in October: 0.98"
The month with the highest snowfall is February (3.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Eureka, SD
- Average snowfall days in October: 1.6 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Eureka, SD
- Average daylight in October: 10h and 5min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in October: 6h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in October
Eureka, SD
- Average sunshine days in October: 21 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (13.6 days).
Average UV index in October
Eureka, SD
- Average UV index in October: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in October
Eureka, SD
- Average cloud cover in October: 34
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 21).
Average visibility in October
Eureka, 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).
Eureka, South Dakota, USA
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