October weather forecast
Mercer, TN

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Weather in October

October, like September, is another pleasant autumn month in Mercer, Tennessee, with an average temperature ranging between max 71.1°F (21.7°C) and min 51.8°F (11°C).

Temperature

The onset of October results in a decrease in the average high-temperature, receding from a warm 82.9°F (28.3°C) in September to a pleasant 71.1°F (21.7°C). Mercer experiences a mean low-temperature of 51.8°F (11°C) during October.

Humidity

The least humid month in Mercer is October, with an average relative humidity of 71%.

Rainfall

In Mercer, in October, during 8.8 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. In Mercer, during the entire year, the rain falls for 125.3 days and collects up to 15.47" (393mm) of precipitation.

Snowfall

In Mercer, Tennessee, snow does not fall in April through October.

Daylight

The average length of the day in October in Mercer is 11h and 17min.
On the first day of October, sunrise is at 6:51 am and sunset at 6:39 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 6:01 pm CDT.

Sunshine

In October, the average sunshine is 6.8h.

UV index

In Mercer, the average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In October, the maximum UV index of 3 transforms into these recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
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Frequently asked questions

What is the average October temperature in Mercer?

October temperatures in Mercer vary between a high-temperature of 71.1°F (21.7°C) and a low-temperature of 51.8°F (11°C). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, is appraised at 89.6°F (32°C).

What is the least humid month in Mercer?

October is the least humid month in Mercer, with an average relative humidity of 71%.

What is the average humidity in October in Mercer?

The average relative humidity in October in Mercer, Tennessee, is 71%.

How much does it rain in Mercer in October?

In Mercer, during October, the rain falls for 8.8 days and regularly aggregates up to 1.1" (28mm) of precipitation.

When it does not snow in Mercer?

In Mercer, Tennessee, snow does not fall in April through October.

Does it snow in Mercer in October?

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

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

The average day length in October is 11h and 17min.

What time are sunrise and sunset in October in Mercer?

In October, on the first day of the month, sunrise is at 6:51 am and sunset at 6:39 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 6:01 pm CDT.

How many hours of sunshine does Mercer have in October?

In Mercer, the average sunshine duration in October is 6.8h.

How high is the UV index in October in Mercer?

In October, the average daily maximum UV index in Mercer is 3. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Mercer, TN

Average temperature in October - Mercer, TN
  • Average high temperature in October: 71.1°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (45.7°F).

  • Average low temperature in October: 51.8°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (32°F).

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Average pressure in October
Mercer, TN

Average pressure in October - Mercer, TN
  • Average pressure in October: 30.05"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in October
Mercer, TN

Average wind speed in October - Mercer, TN
  • Average wind speed in October: 7.1mph

The windiest month (with the highest average wind speed) is February (9.1mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).

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Average humidity in October
Mercer, TN

Average humidity in October - Mercer, TN
  • Average humidity in October: 71%

The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in October
Mercer, TN

Average rainfall in October - Mercer, TN
  • Average rainfall in October: 1.1"

The wettest month (with the highest rainfall) is July (1.85").
The driest month (with the least rainfall) is September (0.67").

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Average rainfall days in October
Mercer, TN

Average rainfall days in October - Mercer, TN
  • Average rainfall days in October: 8.8 days

The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is November (7.1 days).

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Average snowfall in October
Mercer, TN

Average snowfall in October - Mercer, TN
  • Average snowfall in October: 0"

The month with the highest snowfall is December (0.31").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in October
Mercer, TN

Average snowfall days in October - Mercer, TN
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in October /
Average sunshine in October
Mercer, TN

Average daylight in October / Average sunshine in October - Mercer, TN
  • Average daylight in October: 11h and 2min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in October: 6h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in October
Mercer, TN

Average sunshine days in October - Mercer, TN
  • Average sunshine days in October: 20.8 days

The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is July (13.8 days).

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Average UV index in October
Mercer, TN

Average UV index in October - Mercer, TN
  • Average UV index in October: 3

The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in October
Mercer, TN

Average cloud cover in October - Mercer, TN
  • Average cloud cover in October: 31

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 26).

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Average visibility in October
Mercer, TN

Average visibility in October - Mercer, TN
  • 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).

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Mercer, Tennessee, USA

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