May weather forecast
Grundy, VA

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Weather in May

The last month of the spring, May, is a moderately hot month in Grundy, Virginia, with an average temperature ranging between min 53.1°F (11.7°C) and max 73.9°F (23.3°C).

Temperature

The shift from April to May brings an increase in the average high-temperature, moving from an enjoyable 64.9°F (18.3°C) to a warm 73.9°F (23.3°C). In the month of May, the average low-temperature usually rests at a fresh 53.1°F (11.7°C).

Humidity

The average relative humidity in May is 79%.

Rainfall

In Grundy, in May, during 18.6 rainfall days, 2.99" (76mm) of precipitation is typically accumulated. In Grundy, during the entire year, the rain falls for 169.1 days and collects up to 32.09" (815mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Grundy aggregates 0.24" (6mm) of snow. In Grundy, during the entire year, snow falls for 36.4 days and aggregates up to 22.36" (568mm) of snow.

Daylight

In Grundy, the average length of the day in May is 14h and 11min.
On the first day of the month, sunrise is at 6:32 am and sunset at 8:18 pm. On the last day of May, sunrise is at 6:09 am and sunset at 8:42 pm EDT.

Sunshine

In May, the average sunshine is 9.1h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: A daily high UV index of 6 in May leads to these guidelines:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Updated: Jul 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

Grundy in May has an average high-temperature of 73.9°F (23.3°C) and an average low-temperature of 53.1°F (11.7°C).

What is the average humidity in May in Grundy?

In May, the average relative humidity in Grundy is 79%.

How many days does it rain in May in Grundy?

In May, the rain falls for 18.6 days. Throughout May, 2.99" (76mm) of precipitation is accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.2 snowfall days, in May, Grundy aggregates 0.24" (6mm) of snow.

How many hours of daylight does Grundy have in May?

In May, the average day length is 14h and 11min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:32 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 8:42 pm EDT.

How long on average sun shines in May?

In Grundy, the average sunshine duration in May is 9.1h.

What is the month with the highest UV index?

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 Grundy, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Grundy, VA

Average temperature in May - Grundy, VA
  • Average high temperature in May: 73.9°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in May: 53.1°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in May
Grundy, VA

Average pressure in May - Grundy, VA
  • Average pressure in May: 30.02"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in May
Grundy, VA

Average wind speed in May - Grundy, VA
  • Average wind speed in May: 5.5mph

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

Average humidity in May
Grundy, VA

Average humidity in May - Grundy, VA
  • Average humidity in May: 79%

The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and November (76%).

Average rainfall in May
Grundy, VA

Average rainfall in May - Grundy, VA
  • Average rainfall in May: 2.99"

The wettest month (with the highest rainfall) is February (3.7").
The driest month (with the least rainfall) is September (1.65").

Average rainfall days in May
Grundy, VA

Average rainfall days in May - Grundy, VA
  • Average rainfall days in May: 18.6 days

The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in May
Grundy, VA

Average snowfall in May - Grundy, VA
  • Average snowfall in May: 0.24"

The month with the highest snowfall is February (5.59").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Grundy, VA

Average snowfall days in May - Grundy, VA
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is February (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Grundy, 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 1min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in May
Grundy, VA

Average sunshine days in May - Grundy, VA
  • Average sunshine days in May: 10.7 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (10.7 days).

Average UV index in May
Grundy, VA

Average UV index in May - Grundy, 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 and December (UV index 2).

Average cloud cover in May
Grundy, VA

Average cloud cover in May - Grundy, VA
  • Average cloud cover in May: 42

The months with the most cloud cover are January and February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in May
Grundy, VA

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

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

Grundy, Virginia, USA

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