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
With the onset of October, Alpena experiences a noticeable temperature shift, with the average high-temperature receding from a warm 75.7°F (24.3°C) in September to a moderate 57.9°F (14.4°C). In October, Alpena experiences an average nighttime temperature of 41.5°F (5.3°C).Humidity
In October, the average relative humidity is 63%.Rainfall
In Alpena, South Dakota, in October, during 8.1 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. In Alpena, during the entire year, the rain falls for 101.8 days and collects up to 18.19" (462mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. October is the first month it typically snows in Alpena. Throughout October, in the average 1.4 snowfall days, it receives 0.51" (13mm) of snow. Throughout the year, there are 42.3 snowfall days, and 16.54" (420mm) of snow is accumulated.Daylight
The average length of the day in October is 10h and 59min.On the first day of October, sunrise is at 7:32 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 8:09 am and sunset at 6:24 pm CDT.
Sunshine
The average sunshine in October is 6.5h.UV index
In October, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 2 in October interprets into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in October?
What is the average humidity in October?
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 is the sunrise / sunset in October?
How many hours of sunshine does Alpena have in October?
What is the UV index reading in October in Alpena?
Average temperature in October
Alpena, SD
- Average high temperature in October: 57.9°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (23.2°F).
- Average low temperature in October: 41.5°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).
Average pressure in October
Alpena, 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
Alpena, SD
- Average wind speed in October: 10.6mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (8.6mph).
Average humidity in October
Alpena, SD
- Average humidity in October: 63%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is September (62%).
Average rainfall in October
Alpena, SD
- Average rainfall in October: 1.57"
The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in October
Alpena, SD
- Average rainfall days in October: 8.1 days
The month with the highest number of rainy days is June (15.2 days).
The month with the least rainy days is February (1.8 days).
Average snowfall in October
Alpena, SD
- Average snowfall in October: 0.51"
The month with the highest snowfall is February (3.54").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in October
Alpena, SD
- Average snowfall days in October: 1.4 days
The month with the highest number of snowfall days is December (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Alpena, SD
- Average daylight in October: 11h and 0min
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 3min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in October
Alpena, SD
- Average sunshine days in October: 20.3 days
The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in October
Alpena, 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 and November (UV index 1).
Average cloud cover in October
Alpena, SD
- Average cloud cover in October: 32
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 22).
Average visibility in October
Alpena, 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).
Alpena, South Dakota, USA
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