October weather forecast
South Lyon, MI

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Weather in October

October, the same as September, in South Lyon, Michigan, is a moderate autumn month, with an average temperature ranging between min 43.9°F (6.6°C) and max 58.6°F (14.8°C).

Temperature

The transition into October is accompanied by a temperature decrease, with the average high-temperature shifting from an agreeable 71.8°F (22.1°C) in September to a moderate 58.6°F (14.8°C). During October, the average low-temperature is recorded at a chilly 43.9°F (6.6°C).

Humidity

In October, the average relative humidity in South Lyon is 78%.

Rainfall

In South Lyon, during October, the rain falls for 9.7 days and regularly aggregates up to 0.94" (24mm) of precipitation. Throughout the year, there are 121.2 rainfall days, and 11.77" (299mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. October is the first month it typically snows in South Lyon. Throughout October, in the average 0.4 snowfall days, it receives 0.08" (2mm) of snow. In South Lyon, Michigan, during the entire year, snow falls for 46.7 days and aggregates up to 5.87" (149mm) of snow.

Daylight

The average length of the day in October in South Lyon, Michigan, is 11h and 2min.
On the first day of the month, sunrise is at 7:32 am and sunset at 7:15 pm. On the last day of October, in South Lyon, sunrise is at 8:07 am and sunset at 6:28 pm EDT.

Sunshine

In South Lyon, the average sunshine in October is 5.4h.

UV index

In October, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 2 during October translates into the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average October temperature in South Lyon?

South Lyon in October has an average high-temperature of 58.6°F (14.8°C) and an average low-temperature of 43.9°F (6.6°C).

What is the average humidity in October in South Lyon?

The average relative humidity in October is 78%.

How many days does it rain in October in South Lyon?

In South Lyon, during October, the rain falls for 9.7 days and regularly aggregates up to 0.94" (24mm) of precipitation.

When does it start to snow in South Lyon?

October is the first month it typically snows. Throughout October, in the average 0.4 snowfall days, it receives 0.08" (2mm) of snow.

How many hours of daylight does South Lyon have in October?

In South Lyon, Michigan, the average day length in October is 11h and 2min.

When are sunrise and sunset in October in South Lyon?

On the first day of October in South Lyon, sunrise is at 7:32 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 8:07 am and sunset at 6:28 pm EDT.

How long on average sun shines in October in South Lyon?

In October, the average sunshine duration in South Lyon is 5.4h.

How high is the UV index in October in South Lyon?

In South Lyon, the average daily maximum UV index in October is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
South Lyon, MI

Average temperature in October - South Lyon, MI
  • Average high temperature in October: 58.6°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in October: 43.9°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).

Average pressure in October
South Lyon, MI

Average pressure in October - South Lyon, MI
  • Average pressure in October: 30"Hg

The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in October
South Lyon, MI

Average wind speed in October - South Lyon, MI
  • Average wind speed in October: 8.9mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).

Average humidity in October
South Lyon, MI

Average humidity in October - South Lyon, MI
  • Average humidity in October: 78%

The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (76%).

Average rainfall in October
South Lyon, MI

Average rainfall in October - South Lyon, MI
  • Average rainfall in October: 0.94"

The wettest month (with the highest rainfall) is May (1.54").
The driest month (with the least rainfall) is February (0.51").

Average rainfall days in October
South Lyon, MI

Average rainfall days in October - South Lyon, MI
  • Average rainfall days in October: 9.7 days

The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is February (4.3 days).

Average snowfall in October
South Lyon, MI

Average snowfall in October - South Lyon, MI
  • Average snowfall in October: 0.08"

The month with the highest snowfall is February (1.61").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in October
South Lyon, MI

Average snowfall days in October - South Lyon, MI
  • Average snowfall days in October: 0.4 days

The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
South Lyon, MI

Average daylight in October / Average sunshine in October - South Lyon, MI
  • Average daylight in October: 11h and 0min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in October: 5h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).

Average sunshine days in October
South Lyon, MI

Average sunshine days in October - South Lyon, MI
  • Average sunshine days in October: 19.3 days

The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is May (12.8 days).

Average UV index in October
South Lyon, MI

Average UV index in October - South Lyon, MI
  • Average UV index in October: 2

The months with the highest UV index are 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
South Lyon, MI

Average cloud cover in October - South Lyon, MI
  • Average cloud cover in October: 47

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in October
South Lyon, MI

Average visibility in October - South Lyon, MI
  • 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).

South Lyon, Michigan, USA

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