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
Henry witnesses a significant decrease in the average high-temperature with the arrival of October, falling from September's pleasant 71.6°F (22°C) to a fresh 54.3°F (12.4°C). October nights in Henry, South Dakota, observe an average temperature dip to a wintry 39°F (3.9°C).Humidity
September and October, with an average relative humidity of 68%, are the least humid months in Henry, South Dakota.Rainfall
In Henry, in October, it is raining for 8.3 days, with typically 1.73" (44mm) of accumulated precipitation. Throughout the year, in Henry, there are 112.3 rainfall days, and 18.78" (477mm) of precipitation is accumulated.Snowfall
Months with snowfall in Henry are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 2.3 snowfall days, it receives 0.94" (24mm) of snow. Throughout the year, there are 64.3 snowfall days, and 17.56" (446mm) of snow is accumulated.Daylight
In Henry, the average length of the day in October is 10h and 57min.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, in Henry, sunrise is at 8:07 am and sunset at 6:19 pm CDT.
Sunshine
In October, the average sunshine in Henry is 6h.UV index
In October, the average daily maximum UV index in Henry is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The average daily UV index of 2 in October transforms into the following instructions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are October temperatures in Henry?
What are the least humid months in Henry?
What is the average humidity in October in Henry?
How many days does it rain in October in Henry?
When does it start to snow in Henry?
What is the average length of the day in October in Henry?
When are sunrise and sunset in October in Henry?
How many hours of sunshine does Henry have in October?
How high is the UV index in October in Henry?
Average temperature in October
Henry, SD
- Average high temperature in October: 54.3°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (19.4°F).
- Average low temperature in October: 39°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (5.5°F).
Average pressure in October
Henry, 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 (29.85"Hg).
Average wind speed in October
Henry, SD
- Average wind speed in October: 11.2mph
The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).
Average humidity in October
Henry, SD
- Average humidity in October: 68%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are September and October (68%).
Average rainfall in October
Henry, SD
- Average rainfall in October: 1.73"
The wettest month (with the highest rainfall) is June (3.19").
The driest months (with the least rainfall) are January and February (0.59").
Average rainfall days in October
Henry, SD
- Average rainfall days in October: 8.3 days
The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in October
Henry, SD
- Average snowfall in October: 0.94"
The months with the highest snowfall are January and December (3.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Henry, SD
- Average snowfall days in October: 2.3 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in October /
Average sunshine in October
Henry, SD
- Average daylight in October: 10h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in October: 6h and 0min
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 36min).
Average sunshine days in October
Henry, SD
- Average sunshine days in October: 19.1 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in October
Henry, 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 and December (UV index 1).
Average cloud cover in October
Henry, SD
- Average cloud cover in October: 37
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in October
Henry, 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).
Henry, South Dakota, USA
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