October weather forecastRio, VA
October
Weather in October
October, the same as September, is another refreshing autumn month in Rio, Virginia, with an average temperature fluctuating between 48°F (8.9°C) and 67.1°F (19.5°C).Temperature
The start of October signals a decrease in the average high-temperature, transitioning from a warm 78.6°F (25.9°C) in September to an enjoyable 67.1°F (19.5°C). Rio in October anticipates an average nighttime temperature of 48°F (8.9°C).Humidity
May, September, October and December, with an average relative humidity of 76%, are the most humid months.Rainfall
In Rio, during October, the rain falls for 11.1 days and regularly aggregates up to 2.44" (62mm) of precipitation. Throughout the year, in Rio, there are 155.9 rainfall days, and 27.99" (711mm) of precipitation is accumulated.Snowfall
In Rio, snow does not fall in May through October.Daylight
In Rio, the average length of the day in October is 11h and 12min.On the first day of October, sunrise is at 7:10 am and sunset at 6:56 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 6:15 pm EDT.
Sunshine
The average sunshine in October is 5.9h.UV index
In October, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: A maximum high daily UV index of 4 during October translates into the following directions:
Undertake protective steps - Preventing sun damage is advised. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Rio, VA
- Average high temperature in October: 67.1°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (41.5°F).
- Average low temperature in October: 48°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in October
Rio, VA
- Average pressure in October: 30.04"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in October
Rio, VA
- Average wind speed in October: 5.3mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in October
Rio, VA
- Average humidity in October: 76%
The months with the highest relative humidity are May, September, October and December (76%).
The month with the lowest relative humidity is July (71%).
Average rainfall in October
Rio, VA
- Average rainfall in October: 2.44"
The wettest months (with the highest rainfall) are April and May (2.91").
The driest month (with the least rainfall) is January (1.69").
Average rainfall days in October
Rio, VA
- Average rainfall days in October: 11.1 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (8.9 days).
Average snowfall in October
Rio, VA
- Average snowfall in October: 0"
The month with the highest snowfall is March (3.07").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Rio, VA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is January (4.6 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, VA
- Average daylight in October: 11h and 12min
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 36min).
- Average sunshine in October: 5h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in October
Rio, VA
- Average sunshine days in October: 18 days
The month with the most sunshine days is December (19.9 days).
The month with the least sunshine days is May (11.4 days).
Average UV index in October
Rio, VA
- 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, November and December (UV index 2).
Average cloud cover in October
Rio, VA
- Average cloud cover in October: 36
The month with the most cloud cover is March (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 31).
Average visibility in October
Rio, VA
- Average visibility in October: 5mi
The months with the highest visibility are February, March, April, June, July, August and November (6mi).
The months with the lowest visibility are January, May, September, October and December (5mi).
