May weather forecast
Roanoke, VA

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Stunning dawn in the city of Roanoke, Virginia
Stunning dawn in the city of Roanoke, Virginia

Weather in May

The gaiety of spring peaks in May as Roanoke braces itself for the coming summer season. With the maximum recorded rainfall of 3.31" (84mm), the city dresses itself in brilliant hues of green, providing a visually satisfying panorama. The daylight durations consistently increase, which doesn't impede the increase in humidity levels typical of the impending summer. The temperatures continue to climb, contributing to an enticing warmth. Looking forward, June marks the onset of an unabridged summer.

Temperature

Roanoke's May weather brings a rise in high-temperatures, moving from an enjoyable 65.1°F (18.4°C) in April to a moderately hot 74.5°F (23.6°C). A steady average of 52.3°F (11.3°C) throughout May in Roanoke underscores a considerable divergence from the daytime high.

Humidity

May, September and December, with an average relative humidity of 77%, are the most humid months.

Rainfall

The month with the most rainfall is May, when the rain falls for 17.7 days and typically aggregates up to 3.31" (84mm) of precipitation.

Snowfall

In Roanoke, snow does not fall in May through September.

Daylight

In May, the average length of the day is 14h and 11min.
On the first day of the month, sunrise is at 6:23 am and sunset at 8:09 pm. On the last day of May, sunrise is at 6:00 am and sunset at 8:34 pm EDT.

Sunshine

In Roanoke, the average sunshine in May is 9.3h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: In May, the maximum UV index of 6 translates into these guidelines:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Frequently asked questions

What are May temperatures in Roanoke?

May temperatures vary between a high-temperature of 74.5°F (23.6°C) and a low-temperature of 52.3°F (11.3°C).

What are the most humid months in Roanoke?

The months with the highest humidity in Roanoke are May, September and December, with an average relative humidity of 77%.

What is the average humidity in May in Roanoke?

In Roanoke, the average relative humidity in May is 77%.

What is the wettest month in Roanoke?

May is the month with the most rainfall in Roanoke. Rain falls for 17.7 days and accumulates 3.31" (84mm) of precipitation.

How much does it rain in Roanoke in May?

In Roanoke, Virginia, during May, the rain falls for 17.7 days and regularly aggregates up to 3.31" (84mm) of precipitation.

When it does not snow in Roanoke?

May through September are months without snowfall in Roanoke.

Does it snow in Roanoke in May?

In May, in Roanoke, Virginia, it doesn't snow. April is the latest month when it typically snows.

What is the average length of the day in May in Roanoke?

The average day length in May in Roanoke, Virginia, is 14h and 11min.

When is the sunrise / sunset in May in Roanoke?

In May, on the first day of the month, sunrise is at 6:23 am and sunset at 8:09 pm. On the last day of the month, in Roanoke, Virginia, sunrise is at 6:00 am and sunset at 8:34 pm EDT.

How long on average sun shines in May in Roanoke?

In May, the average sunshine duration is 9.3h.

When is the highest UV index in Roanoke?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index reading in May in Roanoke?

The average daily maximum UV index in May in Roanoke, Virginia, is 6. A UV Index value of 6 to 7 symbolizes a high 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 May
Roanoke, VA

Average temperature in May - Roanoke, VA
  • Average high temperature in May: 74.5°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (41.2°F).

  • Average low temperature in May: 52.3°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

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Average pressure in May
Roanoke, VA

Average pressure in May - Roanoke, VA
  • Average pressure in May: 30.03"Hg

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

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Average wind speed in May
Roanoke, VA

Average wind speed in May - Roanoke, VA
  • Average wind speed in May: 5.3mph

The windiest month (with the highest average wind speed) is February (6.8mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

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Average humidity in May
Roanoke, VA

Average humidity in May - Roanoke, VA
  • Average humidity in May: 77%

The months with the highest relative humidity are May, September and December (77%).
The month with the lowest relative humidity is July (72%).

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Average rainfall in May
Roanoke, VA

Average rainfall in May - Roanoke, VA
  • Average rainfall in May: 3.31"

The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is September (1.61").

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Average rainfall days in May
Roanoke, VA

Average rainfall days in May - Roanoke, VA
  • Average rainfall days in May: 17.7 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is November (7.6 days).

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Average snowfall in May
Roanoke, VA

Average snowfall in May - Roanoke, VA
  • Average snowfall in May: 0"

The month with the highest snowfall is March (2.76").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in May
Roanoke, VA

Average snowfall days in May - Roanoke, VA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Roanoke, VA

Average daylight in May / Average sunshine in May - Roanoke, VA
  • Average daylight in May: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in May: 9h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

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Average sunshine days in May
Roanoke, VA

Average sunshine days in May - Roanoke, VA
  • Average sunshine days in May: 11.6 days

The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is May (11.6 days).

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Average UV index in May
Roanoke, VA

Average UV index in May - Roanoke, VA
  • Average UV index in May: 6

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).

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Average cloud cover in May
Roanoke, VA

Average cloud cover in May - Roanoke, VA
  • Average cloud cover in May: 41

The month with the most cloud cover is February (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 31).

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Average visibility in May
Roanoke, VA

Average visibility in May - Roanoke, VA
  • Average visibility in May: 5mi

The months with the highest visibility are June, July and November (6mi).
The months with the lowest visibility are January, February, March, April, May, August, September, October and December (5mi).

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Roanoke, Virginia, USA

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