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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, is an icy winter month in Rio, Virginia, with an average temperature varying between 26.1°F (-3.3°C) and 41.5°F (5.3°C). January is the month when Rio sees the lowest average temperatures, with a high of 41.5°F (5.3°C) and a low of 26.1°F (-3.3°C). Weather in January »
Weather in February
The last month of the winter, February, is a frosty month in Rio, Virginia, with an average temperature varying between 28.9°F (-1.7°C) and 46.2°F (7.9°C). Rio experiences an average high-temperature of a frosty 46.2°F (7.9°C) in February, marking an insignificant shift from 41.5°F (5.3°C) in January. Weather in February »
Weather in March
March, the first month of the spring in Rio, is a fresh month, with an average temperature fluctuating between 35.2°F (1.8°C) and 53.8°F (12.1°C). With the onset of March, Rio's weather sees a minor temperature rise, transitioning from a frosty 46.2°F (7.9°C) in February to a cool 53.8°F (12.1°C). Weather in March »
Weather in April
April in Rio, Virginia, is a comfortable spring month, with an average temperature varying between 66°F (18.9°C) and 45.1°F (7.3°C). Rio in April experiences an increase in the average high-temperature, moving from March's fresh 53.8°F (12.1°C) to a refreshing 66°F (18.9°C). Weather in April »
Weather in May
The last month of the spring, May, is a warm month in Rio, Virginia, with an average temperature ranging between max 75.4°F (24.1°C) and min 54.1°F (12.3°C). The shift from April to May sees an increase in the average high-temperature, transitioning from a refreshing 66°F (18.9°C) to a moderately hot 75.4°F (24.1°C). Weather in May »
Weather in June
The first month of the summer, June, is still a warm month in Rio, Virginia, with an average temperature ranging between max 83.5°F (28.6°C) and min 60.8°F (16°C). With the onset of June, Rio experiences a subtle temperature shift, with the average high-temperature moving from a warm 75.4°F (24.1°C) in May to a still moderately hot 83.5°F (28.6°C). Weather in June »
Weather in July
July is a hot summer month in Rio, Virginia, with an average temperature ranging between min 64.6°F (18.1°C) and max 88.2°F (31.2°C). July, with average temperatures reaching a high of 88.2°F (31.2°C) and a low of 64.6°F (18.1°C), is the warmest month. In July, the average heat index is computed to be a sweltering 100.4°F (38°C). Weather in July »
Weather in August
August, the last month of the summer in Rio, is also a moderately hot month, with temperature in the range of an average high of 85.6°F (29.8°C) and an average low of 63.3°F (17.4°C). Rio records an average high-temperature of a warm 85.6°F (29.8°C) in August, maintaining a close correlation with July's 88.2°F (31.2°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Rio, Virginia, with an average temperature ranging between max 78.6°F (25.9°C) and min 58.5°F (14.7°C). A moderate decline in average high-temperatures is noted in September, moving from 85.6°F (29.8°C) in August to a still moderately hot 78.6°F (25.9°C). Weather in September »
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). 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). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Rio, Virginia, with an average temperature fluctuating between 54.5°F (12.5°C) and 37°F (2.8°C). A decrease in the average high-temperature is observed during November, shifting from a comfortable 67.1°F (19.5°C) in October to a fresh 54.5°F (12.5°C). Weather in November »
Weather in December
The first month of the winter, December, is still a chilly month in Rio, Virginia, with an average temperature varying between 46.6°F (8.1°C) and 31.8°F (-0.1°C). The arrival of December signals a subtle shift in temperature, down from a cool 54.5°F (12.5°C) in November to a frosty 46.6°F (8.1°C). Weather in December »
Updated: Jul 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
The coldest month is January, with an average high-temperature of 41.5°F (5.3°C) and an average low-temperature of 26.1°F (-3.3°C).
What is the driest month?
The month with the least rainfall is January, when the rain falls for 9.7 days and typically collects 1.69" (43mm) of precipitation.
How many days does it rain?
In Rio, during the entire year, the rain falls for 155.9 days and collects up to 27.99" (711mm) of precipitation.
When does it snow?
January through April, November and December are months with snowfall.
How much does it snow?
In Rio, during the entire year, snow falls for 14.6 days and aggregates up to 10.43" (265mm) of snow.
What are the months with the least sunshine in Rio?
The months with the least sunshine are January and December, with an average of 5.4h of sunshine.
What is the month with the lowest UV index?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the snowiest month?
March is the month with the most snowfall. Snow falls for 3.2 days and accumulates 3.07" (78mm) of snow.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
What is the wettest month?
The months with the most rainfall in Rio are April and May, with an average 2.91" (74mm) of precipitation.
What is the most humid month?
The months with the highest humidity in Rio are May, September, October and December, with an average relative humidity of 76%.
When it does not snow?
May through October are months without snowfall.
When is the highest UV index?
The months with the highest UV index are May through August, with an average maximum UV index of 6.
When are the longest days?
With an average of 14h and 48min of daylight, June has the longest days of the year.
What part of the year is the hottest?
During the warmest month in Rio, July, temperatures average a high of 88.2°F (31.2°C) and a low of 64.6°F (18.1°C).
What is the least humid month in Rio?
With an average relative humidity of 71%, July is the least humid month.
What month has the most sunshine in Rio?
With an average of 10.7h of sunshine, July has the most sunshine of the year.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 36min of daylight.
Average temperature
Rio, VA
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).
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
Rio, VA
- Average pressure in January:
30.12"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.96"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.12"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
Rio, VA
- Average wind speed in January:
5.8mph - Average wind speed in February:
6mph - Average wind speed in March:
6.1mph - Average wind speed in April:
6.3mph - Average wind speed in May:
5.3mph - Average wind speed in June:
4.8mph
- Average wind speed in July:
4.3mph - Average wind speed in August:
4.2mph - Average wind speed in September:
4.6mph - Average wind speed in October:
5.3mph - Average wind speed in November:
5.3mph - Average wind speed in December:
5.2mph
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
Rio, VA
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
Rio, VA
- Average rainfall in January:
1.69" - Average rainfall in February:
1.77" - Average rainfall in March:
2.28" - Average rainfall in April:
2.91" - Average rainfall in May:
2.91" - Average rainfall in June:
2.56"
- Average rainfall in July:
2.32" - Average rainfall in August:
2.68" - Average rainfall in September:
2.05" - Average rainfall in October:
2.44" - Average rainfall in November:
2.01" - Average rainfall in December:
2.36"
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
Rio, VA
- Average rainfall days in January:
9.7 days - Average rainfall days in February:
9.3 days - Average rainfall days in March:
13.3 days - Average rainfall days in April:
14.4 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
15.7 days
- Average rainfall days in July:
16.3 days - Average rainfall days in August:
16.8 days - Average rainfall days in September:
14.1 days - Average rainfall days in October:
11.1 days - Average rainfall days in November:
8.9 days - Average rainfall days in December:
9.2 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
Rio, VA
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
Rio, VA
- Average snowfall days in January:
4.6 days - Average snowfall days in February:
4.4 days - Average snowfall days in March:
3.2 days - Average snowfall days in April:
0.2 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.3 days - Average snowfall days in December:
1.9 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 / Average sunshine
Rio, VA
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 3min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 4min
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 January:
5h and 2min - Average sunshine in February:
5h and 4min - Average sunshine in March:
6h and 5min - Average sunshine in April:
9h and 1min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 3min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 5min - Average sunshine in November:
6h and 1min - Average sunshine in December:
5h and 2min
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
Rio, VA
- Average sunshine days in January:
18.8 days - Average sunshine days in February:
15.8 days - Average sunshine days in March:
15.1 days - Average sunshine days in April:
14 days - Average sunshine days in May:
11.4 days - Average sunshine days in June:
12.5 days
- Average sunshine days in July:
11.6 days - Average sunshine days in August:
12 days - Average sunshine days in September:
13.8 days - Average sunshine days in October:
18 days - Average sunshine days in November:
19.5 days - Average sunshine days in December:
19.9 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
Rio, VA
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
Rio, VA
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
Rio, VA
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).
Rio, Virginia, USA
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