October weather forecast
Rio Vista, MD

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Weather in October

October, like September, in Rio Vista, Maryland, is another refreshing autumn month, with temperature in the range of an average low of 54.5°F (12.5°C) and an average high of 66.2°F (19°C).

Temperature

In Rio Vista, the beginning of October is marked by a lowered average high-temperature, shifting from September's moderately hot 76.8°F (24.9°C) to a refreshing 66.2°F (19°C). During October, Rio Vista's temperature averages to a fresh 54.5°F (12.5°C) at night.

Humidity

In October, the average relative humidity is 76%.

Rainfall

In Rio Vista, during October, the rain falls for 12.7 days and regularly aggregates up to 3.23" (82mm) of precipitation. In Rio Vista, during the entire year, the rain falls for 157 days and collects up to 32.91" (836mm) of precipitation.

Snowfall

In Rio Vista, snow does not fall in May through October.

Daylight

In Rio Vista, the average length of the day in October is 11h and 10min.
On the first day of October, sunrise is at 7:01 am and sunset at 6:47 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 6:05 pm EDT.

Sunshine

In Rio Vista, the average sunshine in October is 5.8h.

UV index

The average daily maximum UV index in October is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 4 in October converts into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in October?

In Rio Vista, in October, the average high-temperature is 66.2°F (19°C), and the average low-temperature is 54.5°F (12.5°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, in August is computed to be 89.6°F (32°C).

What is the average humidity in October?

In October, the average relative humidity is 76%.

How many days does it rain in October?

In October, the rain falls for 12.7 days. Throughout October, 3.23" (82mm) of precipitation is accumulated.

When it does not snow?

May through October are months without snowfall in Rio Vista.

Does it snow in October?

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

What is the average length of the day in October?

In October, the average day length is 11h and 10min.

When is the sunrise / sunset in October?

In October, on the first day of the month, sunrise is at 7:01 am and sunset at 6:47 pm. On the last day of the month, in Rio Vista, sunrise is at 7:31 am and sunset at 6:05 pm EDT.

How many hours of sunshine does Rio Vista have in October?

The average sunshine duration in October is 5.8h.

What is the UV index reading in October?

In October, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes 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
Rio Vista, MD

Average temperature in October - Rio Vista, MD
  • Average high temperature in October: 66.2°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (40.5°F).

  • Average low temperature in October: 54.5°F

The month with the highest average low temperature is July (71.8°F).
The coldest month (with the lowest average low temperature) is January (30°F).

Average pressure in October
Rio Vista, MD

Average pressure in October - Rio Vista, MD
  • Average pressure in October: 30.03"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in October
Rio Vista, MD

Average wind speed in October - Rio Vista, MD
  • Average wind speed in October: 8.8mph

The windiest months (with the highest average wind speed) are February and March (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in October
Rio Vista, MD

Average humidity in October - Rio Vista, MD
  • Average humidity in October: 76%

The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January and November (73%).

Average rainfall in October
Rio Vista, MD

Average rainfall in October - Rio Vista, MD
  • Average rainfall in October: 3.23"

The wettest month (with the highest rainfall) is August (4.17").
The driest month (with the least rainfall) is January (1.93").

Average rainfall days in October
Rio Vista, MD

Average rainfall days in October - Rio Vista, MD
  • Average rainfall days in October: 12.7 days

The month with the highest number of rainy days is May (17.2 days).
The months with the least rainy days are January and November (8.8 days).

Average snowfall in October
Rio Vista, MD

Average snowfall in October - Rio Vista, MD
  • Average snowfall in October: 0"

The month with the highest snowfall is March (1.22").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in October
Rio Vista, MD

Average snowfall days in October - Rio Vista, MD
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is January (3.2 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
Rio Vista, MD

Average daylight in October / Average sunshine in October - Rio Vista, MD
  • Average daylight in October: 11h and 1min

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

  • Average sunshine in October: 5h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

Average sunshine days in October
Rio Vista, MD

Average sunshine days in October - Rio Vista, MD
  • Average sunshine days in October: 16.2 days

The month with the most sunshine days is November (19.7 days).
The months with the least sunshine days are May and August (11.8 days).

Average UV index in October
Rio Vista, MD

Average UV index in October - Rio Vista, MD
  • 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
Rio Vista, MD

Average cloud cover in October - Rio Vista, MD
  • Average cloud cover in October: 36

The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in October
Rio Vista, MD

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

Rio Vista, Maryland, USA

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