October weather forecast
Decatur, AL

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Weather in October

October brings profound autumn weather to Decatur, with temperatures taking a dip, registering between 52.7°F (11.5°C) and 72.1°F (22.3°C). The decrease in temperature from the previous month sets the tone for incoming chill. The landscape starts transforming, offering a riot of colors in reds, oranges, and yellows against the diminishing sunshine. Rainfall is scarce as nature prepares itself for the colder months. The winds pick up pace, sweeping away the last remnants of the summer heat.

Temperature

The arrival of October corresponds with a shift in temperature, down from a warm 83.1°F (28.4°C) in September to a pleasant 72.1°F (22.3°C). Throughout the month of October, Decatur witnesses an average temperature of 52.7°F (11.5°C).

Humidity

With an average relative humidity of 72%, October is the least humid month.

Rainfall

In Decatur, in October, during 11 rainfall days, 3.07" (78mm) of precipitation is typically accumulated. In Decatur, during the entire year, the rain falls for 177.6 days and collects up to 43.11" (1095mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Decatur, the average length of the day in October is 11h and 18min.
On the first day of the month, sunrise is at 6:43 am and sunset at 6:31 pm. On the last day of October, sunrise is at 7:08 am and sunset at 5:54 pm CDT.

Sunshine

The average sunshine in October is 7.1h.

UV index

In Decatur, the average daily maximum UV index in October is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 4 in October transforms into the following instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. To avoid the Sun's strongest rays, limit exposure around the mid-day period. To cut down UV radiation exposure by about half, sport a wide-brim hat.

Frequently asked questions

What are October temperatures?

The high-temperature during October is 72.1°F (22.3°C) and the low-temperature is 52.7°F (11.5°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is estimated at 89.6°F (32°C).

What is the least humid month?

With an average relative humidity of 72%, October is the least humid month.

What is the average humidity in October?

In Decatur, the average relative humidity in October is 72%.

How much does it rain in October?

In October, the rain falls for 11 days. Throughout October, 3.07" (78mm) of precipitation is accumulated.

When it does not snow?

April through October are months without snowfall.

Does it snow in October?

In Decatur, in October, it doesn't snow. In November, it regularly snows.

What is the average length of the day in October in Decatur?

In October, the average day length is 11h and 18min.

When are sunrise and sunset in October?

In October, on the first day of the month, sunrise is at 6:43 am and sunset at 6:31 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:54 pm CDT.

How many hours of sunshine does Decatur have in October?

In Decatur, the average sunshine duration in October is 7.1h.

What is the UV index intensity in October?

In October, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Decatur, AL

Average temperature in October - Decatur, AL
  • Average high temperature in October: 72.1°F

The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (47.5°F).

  • Average low temperature in October: 52.7°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (33.3°F).

Average pressure in October
Decatur, AL

Average pressure in October - Decatur, AL
  • Average pressure in October: 30.06"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in October
Decatur, AL

Average wind speed in October - Decatur, AL
  • Average wind speed in October: 6.8mph

The windiest month (with the highest average wind speed) is February (8.6mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).

Average humidity in October
Decatur, AL

Average humidity in October - Decatur, AL
  • Average humidity in October: 72%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (72%).

Average rainfall in October
Decatur, AL

Average rainfall in October - Decatur, AL
  • Average rainfall in October: 3.07"

The wettest month (with the highest rainfall) is December (4.45").
The driest months (with the least rainfall) are September and November (2.48").

Average rainfall days in October
Decatur, AL

Average rainfall days in October - Decatur, AL
  • Average rainfall days in October: 11 days

The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is November (10.4 days).

Average snowfall in October
Decatur, AL

Average snowfall in October - Decatur, AL
  • Average snowfall in October: 0"

The months with the highest snowfall are January and February (0.55").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in October
Decatur, AL

Average snowfall days in October - Decatur, AL
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in October /
Average sunshine in October
Decatur, AL

Average daylight in October / Average sunshine in October - Decatur, AL
  • Average daylight in October: 11h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in October: 7h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in October
Decatur, AL

Average sunshine days in October - Decatur, AL
  • Average sunshine days in October: 19.2 days

The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is July (8.8 days).

Average UV index in October
Decatur, AL

Average UV index in October - Decatur, AL
  • Average UV index in October: 4

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in October
Decatur, AL

Average cloud cover in October - Decatur, AL
  • Average cloud cover in October: 33

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in October
Decatur, AL

Average visibility in October - Decatur, AL
  • Average visibility in October: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Decatur, Alabama, USA

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