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
A clear reduction in the average high-temperature marks the arrival of October, falling from a moderately hot 74.3°F (23.5°C) in September to a moderate 56.3°F (13.5°C). The average nighttime temperature lowers to a cold 40.1°F (4.5°C) throughout October.Humidity
The average relative humidity in October is 64%.Rainfall
In Richmond, during October, the rain falls for 7.8 days and regularly aggregates up to 1.61" (41mm) of precipitation. In Richmond, 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. Throughout October, in the average 2.1 snowfall days, it receives 0.51" (13mm) of snow. Throughout the year, there are 54.8 snowfall days, and 19.13" (486mm) of snow is accumulated.Daylight
The average length of the day in October is 10h and 55min.On the first day of the month, sunrise is at 7:33 am and sunset at 7:14 pm. On the last day of October, sunrise is at 8:13 am and sunset at 6:22 pm CDT.
Sunshine
The average sunshine in October is 6.4h.UV index
In Richmond, the average daily maximum UV index in October is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 2 in October translates into this advice:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are October temperatures?
What is the average humidity in October in Richmond?
How many days does it rain in October?
When does it start to snow?
What is the average length of the day in October?
When are sunrise and sunset in October?
How long on average sun shines in October in Richmond?
How high is the UV index in October?
Average temperature in October
Richmond, 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
Richmond, 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
Richmond, 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
Richmond, 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
Richmond, 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
Richmond, 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
Richmond, 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
Richmond, 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
Richmond, 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: 6h and 2min
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
Richmond, 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
Richmond, 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
Richmond, 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
Richmond, 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).
Richmond, South Dakota, USA
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