May weather forecast
Rockcastle, KY

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Weather in May

May, the last month of the spring in Rockcastle, is a warm month, with an average temperature fluctuating between 58.6°F (14.8°C) and 76.6°F (24.8°C).

Temperature

May's arrival brings a temperature shift, moving from a comfortable 67.6°F (19.8°C) in April to a warm 76.6°F (24.8°C). Throughout the May nights, Rockcastle encounters a low-temperature of 58.6°F (14.8°C).

Humidity

March and May, with an average relative humidity of 79%, are the most humid months in Rockcastle, Kentucky.

Rainfall

In May, the rain falls for 16.3 days. Throughout May, 3.35" (85mm) of precipitation is accumulated. Throughout the year, in Rockcastle, there are 160.8 rainfall days, and 35.79" (909mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in May in Rockcastle is 14h and 10min.
On the first day of the month, sunrise is at 5:56 am and sunset at 7:41 pm. On the last day of May, sunrise is at 5:34 am and sunset at 8:05 pm CDT.

Sunshine

In May, the average sunshine is 9.4h.

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 risk from unsafe exposure to UV radiation for the average person.
Note: In May, the average maximum UV index of 6 translates into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.

Frequently asked questions

What is the average May temperature?

The average high-temperature and low-temperature during May are 76.6°F (24.8°C) and 58.6°F (14.8°C) respectively.

What are the most humid months?

March and May, with an average relative humidity of 79%, are most humid months in Rockcastle.

What is the average humidity in May?

In May, the average relative humidity is 79%.

How many days does it rain in May?

In Rockcastle, in May, it is raining for 16.3 days, with typically 3.35" (85mm) of accumulated precipitation.

When it does not snow?

May through September are months without snowfall.

Does it snow in Rockcastle in May?

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

What is the average length of the day in May?

In May, the average day length is 14h and 10min.

When is the sunrise / sunset in May in Rockcastle?

On the first day of May, sunrise is at 5:56 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:05 pm CDT.

How many hours of sunshine does Rockcastle have in May?

In May, the average sunshine duration is 9.4h.

When is the highest UV index?

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

How high is the UV index in May?

In May, the average daily maximum UV index in Rockcastle is 6. A UV Index 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
Rockcastle, KY

Average temperature in May - Rockcastle, KY
  • Average high temperature in May: 76.6°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (42.1°F).

  • Average low temperature in May: 58.6°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).

Average pressure in May
Rockcastle, KY

Average pressure in May - Rockcastle, KY
  • Average pressure in May: 29.99"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in May
Rockcastle, KY

Average wind speed in May - Rockcastle, KY
  • Average wind speed in May: 7.1mph

The windiest months (with the highest average wind speed) are February and April (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

Average humidity in May
Rockcastle, KY

Average humidity in May - Rockcastle, KY
  • Average humidity in May: 79%

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (72%).

Average rainfall in May
Rockcastle, KY

Average rainfall in May - Rockcastle, KY
  • Average rainfall in May: 3.35"

The wettest month (with the highest rainfall) is February (4.45").
The driest month (with the least rainfall) is September (1.73").

Average rainfall days in May
Rockcastle, KY

Average rainfall days in May - Rockcastle, KY
  • Average rainfall days in May: 16.3 days

The month with the highest number of rainy days is March (16.4 days).
The month with the least rainy days is November (9.9 days).

Average snowfall in May
Rockcastle, KY

Average snowfall in May - Rockcastle, KY
  • Average snowfall in May: 0"

The month with the highest snowfall is February (2.05").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Rockcastle, KY

Average snowfall days in May - Rockcastle, KY
  • Average snowfall days in May: 0 days

The months with the highest number of snowfall days are January and February (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Rockcastle, KY

Average daylight in May / Average sunshine in May - Rockcastle, KY
  • 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 42min).

  • Average sunshine in May: 9h and 2min

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

Average sunshine days in May
Rockcastle, KY

Average sunshine days in May - Rockcastle, KY
  • Average sunshine days in May: 12.8 days

The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is February (11.6 days).

Average UV index in May
Rockcastle, KY

Average UV index in May - Rockcastle, KY
  • 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
Rockcastle, KY

Average cloud cover in May - Rockcastle, KY
  • Average cloud cover in May: 38

The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 28).

Average visibility in May
Rockcastle, KY

Average visibility in May - Rockcastle, KY
  • Average visibility in May: 6mi

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

Rockcastle, Kentucky, USA

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