October weather forecast
Rio Vista, TN

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Weather in October

October, like September, is another pleasant autumn month in Rio Vista, Tennessee, with an average temperature ranging between max 69.1°F (20.6°C) and min 49.1°F (9.5°C).

Temperature

During the transition into October, Rio Vista observes a decrease in the average high-temperature, falling from a warm 80.8°F (27.1°C) in September to an agreeable 69.1°F (20.6°C). October witnesses an average low-temperature hovering around a chilly 49.1°F (9.5°C).

Humidity

In Rio Vista, the average relative humidity in October is 75%.

Rainfall

In October, the rain falls for 7.7 days. Throughout October, 0.75" (19mm) of precipitation is accumulated. Throughout the year, there are 117.7 rainfall days, and 11.34" (288mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, October through December. October is the first month it typically snows. Throughout October, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow. In Rio Vista, during the entire year, snow falls for 13.1 days and aggregates up to 1.38" (35mm) of snow.

Daylight

In Rio Vista, the average length of the day in October is 11h and 16min.
On the first day of October, sunrise is at 7:32 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 6:41 pm EDT.

Sunshine

The average sunshine in October is 7.2h.

UV index

In October, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In October, a regular UV index of 4 translates into these guidelines:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Rio Vista in October?

In October, in Rio Vista, the average high-temperature is 69.1°F (20.6°C), and the average low-temperature is 49.1°F (9.5°C). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is computed to be 84.2°F (29°C).

What is the average humidity in October?

The average relative humidity in October is 75%.

How much does it rain in October?

In Rio Vista, in October, during 7.7 rainfall days, 0.75" (19mm) of precipitation is typically accumulated.

When does it start snowing?

October is the first month it typically snows. Throughout October, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow.

What is the average length of the day in October?

The average day length in October is 11h and 16min.

When is the sunrise / sunset in October?

On the first day of October, sunrise is at 7:32 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 6:41 pm EDT.

How long on average sun shines in October?

In Rio Vista, the average sunshine duration in October is 7.2h.

What is the UV index intensity in October?

In Rio Vista, Tennessee, the average daily maximum UV index in October is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
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
Rio Vista, TN

Average temperature in October - Rio Vista, TN
  • Average high temperature in October: 69.1°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (44.8°F).

  • Average low temperature in October: 49.1°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (30°F).

Average pressure in October
Rio Vista, TN

Average pressure in October - Rio Vista, TN
  • Average pressure in October: 30.06"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in October
Rio Vista, TN

Average wind speed in October - Rio Vista, TN
  • Average wind speed in October: 4.6mph

The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

Average humidity in October
Rio Vista, TN

Average humidity in October - Rio Vista, TN
  • Average humidity in October: 75%

The months with the highest relative humidity are February and December (79%).
The months with the lowest relative humidity are July and August (74%).

Average rainfall in October
Rio Vista, TN

Average rainfall in October - Rio Vista, TN
  • Average rainfall in October: 0.75"

The wettest month (with the highest rainfall) is February (1.3").
The driest month (with the least rainfall) is September (0.47").

Average rainfall days in October
Rio Vista, TN

Average rainfall days in October - Rio Vista, TN
  • Average rainfall days in October: 7.7 days

The month with the highest number of rainy days is July (12.7 days).
The month with the least rainy days is November (7.5 days).

Average snowfall in October
Rio Vista, TN

Average snowfall in October - Rio Vista, TN
  • Average snowfall in October: 0.04"

The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days in October
Rio Vista, TN

Average snowfall days in October - Rio Vista, TN
  • Average snowfall days in October: 0.3 days

The months with the highest number of snowfall days are January and February (3.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
Rio Vista, TN

Average daylight in October / Average sunshine in October - Rio Vista, 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: 7h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

Average sunshine days in October
Rio Vista, TN

Average sunshine days in October - Rio Vista, TN
  • Average sunshine days in October: 21.5 days

The month with the most sunshine days is October (21.5 days).
The months with the least sunshine days are February and July (15.9 days).

Average UV index in October
Rio Vista, TN

Average UV index in October - Rio Vista, TN
  • 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, February and December (UV index 2).

Average cloud cover in October
Rio Vista, TN

Average cloud cover in October - Rio Vista, TN
  • Average cloud cover in October: 32

The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 28).

Average visibility in October
Rio Vista, TN

Average visibility in October - Rio Vista, TN
  • 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).

Rio Vista, Tennessee, USA

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