May weather forecast
Sullivan, KY

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Weather in May

May, the last month of the spring in Sullivan, is a moderately hot month, with an average temperature varying between 58.3°F (14.6°C) and 75.2°F (24°C).

Temperature

May witnesses a subtle temperature ascent, adjusting from a refreshing 66.6°F (19.2°C) in April to a warm 75.2°F (24°C). May in Sullivan, Kentucky, witnesses an average low-temperature hovering around a mild 58.3°F (14.6°C).

Humidity

The most humid month in Sullivan is May, with an average relative humidity of 80%.

Rainfall

In Sullivan, in May, it is raining for 14.7 days, with typically 1.93" (49mm) of accumulated precipitation. In Sullivan, during the entire year, the rain falls for 136.4 days and collects up to 20" (508mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In May, the average length of the day in Sullivan is 14h and 12min.
On the first day of May, sunrise is at 5:55 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:06 pm CDT.

Sunshine

In May, the average sunshine in Sullivan is 9.2h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Sullivan. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: An average maximum UV index of 6 in May leads to these recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Sullivan in May?

In Sullivan, in May, the average high-temperature is 75.2°F (24°C), and the average low-temperature is 58.3°F (14.6°C).

What is the most humid month in Sullivan?

The most humid month in Sullivan, Kentucky, is May, with an average relative humidity of 80%.

What is the average humidity in May in Sullivan?

In Sullivan, Kentucky, the average relative humidity in May is 80%.

How much does it rain in Sullivan in May?

In Sullivan, in May, during 14.7 rainfall days, 1.93" (49mm) of precipitation is typically accumulated.

When it does not snow in Sullivan?

May through October are months without snowfall in Sullivan.

Does it snow in Sullivan in May?

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

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

In May, the average day length is 14h and 12min.

What time are sunrise and sunset in May in Sullivan?

In May, on the first day of the month, sunrise is at 5:55 am and sunset at 7:42 pm. On the last day of the month, in Sullivan, Kentucky, sunrise is at 5:32 am and sunset at 8:06 pm CDT.

How long on average sun shines in May in Sullivan?

In May, the average sunshine duration is 9.2h.

What is the month with the highest UV index in Sullivan?

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

What is the UV index intensity in May in Sullivan?

In Sullivan, Kentucky, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to Sun's UV rays.
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
Sullivan, KY

Average temperature in May - Sullivan, KY
  • Average high temperature in May: 75.2°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (40.1°F).

  • Average low temperature in May: 58.3°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).

Average pressure in May
Sullivan, KY

Average pressure in May - Sullivan, KY
  • Average pressure in May: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in May
Sullivan, KY

Average wind speed in May - Sullivan, KY
  • Average wind speed in May: 8.1mph

The windiest month (with the highest average wind speed) is February (9.9mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).

Average humidity in May
Sullivan, KY

Average humidity in May - Sullivan, KY
  • Average humidity in May: 80%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).

Average rainfall in May
Sullivan, KY

Average rainfall in May - Sullivan, KY
  • Average rainfall in May: 1.93"

The wettest month (with the highest rainfall) is April (2.2").
The driest month (with the least rainfall) is September (0.91").

Average rainfall days in May
Sullivan, KY

Average rainfall days in May - Sullivan, KY
  • Average rainfall days in May: 14.7 days

The month with the highest number of rainy days is July (14.8 days).
The month with the least rainy days is January (8.2 days).

Average snowfall in May
Sullivan, KY

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

The month with the highest snowfall is January (0.79").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Sullivan, KY

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

The month with the highest number of snowfall days is January (4.4 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
Sullivan, KY

Average daylight in May / Average sunshine in May - Sullivan, 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 36min).

  • Average sunshine in May: 9h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in May
Sullivan, KY

Average sunshine days in May - Sullivan, KY
  • Average sunshine days in May: 13.2 days

The month with the most sunshine days is October (20.7 days).
The month with the least sunshine days is July (13.1 days).

Average UV index in May
Sullivan, KY

Average UV index in May - Sullivan, 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
Sullivan, KY

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

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 28).

Average visibility in May
Sullivan, KY

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

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

Sullivan, Kentucky, USA

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