May weather forecast
Rock Castle, TN

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Weather in May

The last month of the spring, May, is a moderately hot month in Rock Castle, Tennessee, with temperature in the range of an average low of 56.8°F (13.8°C) and an average high of 76.5°F (24.7°C).

Temperature

With the onset of May, Rock Castle experiences a subtle temperature shift, with the average high-temperature moving from a pleasant 68°F (20°C) in April to a warm 76.5°F (24.7°C). Nighttime temperatures consistently average a refreshing 56.8°F (13.8°C) during May.

Humidity

In May, the average relative humidity in Rock Castle is 78%.

Rainfall

In Rock Castle, during May, the rain falls for 17 days and regularly aggregates up to 3.39" (86mm) of precipitation. In Rock Castle, during the entire year, the rain falls for 170.4 days and collects up to 37.99" (965mm) of precipitation.

Snowfall

In Rock Castle, snow does not fall in May through October.

Daylight

In May, the average length of the day is 14h and 5min.
On the first day of the month, sunrise is at 5:49 am and sunset at 7:30 pm. On the last day of May, sunrise is at 5:27 am and sunset at 7:53 pm CDT.

Sunshine

The average sunshine in May in Rock Castle, Tennessee, is 9.6h.

UV index

The months with the highest UV index in Rock Castle are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 6 during May translates into the following directions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
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Frequently asked questions

What are the temperatures in Rock Castle in May?

In May, the average high-temperature and low-temperature in Rock Castle, Tennessee, are 76.5°F (24.7°C) and 56.8°F (13.8°C) respectively.

What is the average humidity in May in Rock Castle?

In May, the average relative humidity in Rock Castle is 78%.

How many days does it rain in May in Rock Castle?

In Rock Castle, Tennessee, in May, during 17 rainfall days, 3.39" (86mm) of precipitation is typically accumulated.

When it does not snow in Rock Castle?

May through October are months without snowfall in Rock Castle, Tennessee.

Does it snow in Rock Castle in May?

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

How many hours of daylight does Rock Castle have in May?

In Rock Castle, Tennessee, the average day length in May is 14h and 5min.

When are sunrise and sunset in May in Rock Castle?

On the first day of May, sunrise is at 5:49 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 7:53 pm CDT.

How long on average sun shines in May in Rock Castle?

The average sunshine duration in May in Rock Castle is 9.6h.

When is the highest UV index in Rock Castle?

The months with the highest UV index in Rock Castle, Tennessee, are May through August, with an average maximum UV index of 6.

What is the UV index reading in May in Rock Castle?

The average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to 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
Rock Castle, TN

Average temperature in May - Rock Castle, TN
  • Average high temperature in May: 76.5°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 (43.9°F).

  • Average low temperature in May: 56.8°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

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Average pressure in May
Rock Castle, TN

Average pressure in May - Rock Castle, TN
  • Average pressure in May: 30.01"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed in May
Rock Castle, TN

Average wind speed in May - Rock Castle, TN
  • Average wind speed in May: 5.7mph

The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in May
Rock Castle, TN

Average humidity in May - Rock Castle, TN
  • Average humidity in May: 78%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is November (75%).

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Average rainfall in May
Rock Castle, TN

Average rainfall in May - Rock Castle, TN
  • Average rainfall in May: 3.39"

The wettest month (with the highest rainfall) is February (4.09").
The driest month (with the least rainfall) is September (1.97").

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Average rainfall days in May
Rock Castle, TN

Average rainfall days in May - Rock Castle, TN
  • Average rainfall days in May: 17 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (9.5 days).

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Average snowfall in May
Rock Castle, TN

Average snowfall in May - Rock Castle, TN
  • Average snowfall in May: 0"

The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
Rock Castle, TN

Average snowfall days in May - Rock Castle, TN
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (3.9 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
Rock Castle, TN

Average daylight in May / Average sunshine in May - Rock Castle, TN
  • Average daylight in May: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in May: 9h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

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Average sunshine days in May
Rock Castle, TN

Average sunshine days in May - Rock Castle, TN
  • Average sunshine days in May: 11.8 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (10.3 days).

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Average UV index in May
Rock Castle, TN

Average UV index in May - Rock Castle, TN
  • 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).

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Average cloud cover in May
Rock Castle, TN

Average cloud cover in May - Rock Castle, TN
  • Average cloud cover in May: 37

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 29).

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Average visibility in May
Rock Castle, TN

Average visibility in May - Rock Castle, TN
  • Average visibility in May: 5mi

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

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Rock Castle, Tennessee, USA

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