April weather forecast
Sullivan, KY

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Weather in April

April in Sullivan, Kentucky, is a refreshing spring month, with temperature in the range of an average low of 48.9°F (9.4°C) and an average high of 66.6°F (19.2°C).

Temperature

April brings a temperature change, with average high-temperatures moving from March's refreshing 55.6°F (13.1°C) to a comfortable 66.6°F (19.2°C). Nighttime temperature in Sullivan, Kentucky, experiences an average drop to a chilly 48.9°F (9.4°C) in April.

Humidity

In Sullivan, the average relative humidity in April is 77%.

Rainfall

The month with the most rainfall is April, when the rain falls for 13 days and typically aggregates up to 2.2" (56mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Sullivan. April is the last month it regularly snows. During 0.3 snowfall days, in April, Sullivan aggregates 0.04" (1mm) of snow. Throughout the year, in Sullivan, there are 15.2 snowfall days, and 3.03" (77mm) of snow is accumulated.

Daylight

In Sullivan, the average length of the day in April is 13h and 11min.
On the first day of April in Sullivan, sunrise is at 6:35 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 7:41 pm CDT.

Sunshine

In Sullivan, the average sunshine in April is 8.6h.

UV index

In April, the average daily maximum UV index in Sullivan is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 5 in April converts into the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
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 April?

The average high-temperature and low-temperature in Sullivan during April are 66.6°F (19.2°C) and 48.9°F (9.4°C) respectively.

What is the average humidity in April in Sullivan?

In April, the average relative humidity in Sullivan, Kentucky, is 77%.

What is the wettest month in Sullivan?

The month with the most rainfall is April, when the rain falls for 13 days and typically aggregates up to 2.2" (56mm) of precipitation.

How much does it rain in Sullivan in April?

In Sullivan, during April, the rain falls for 13 days and regularly aggregates up to 2.2" (56mm) of precipitation.

What is the last month it snows in Sullivan?

April is the last month it regularly snows in Sullivan, Kentucky. During 0.3 snowfall days, in April, Sullivan aggregates 0.04" (1mm) of snow.

How many hours of daylight does Sullivan have in April?

In April, the average day length in Sullivan is 13h and 11min.

What time are sunrise and sunset in April in Sullivan?

In April, on the first day of the month, sunrise is at 6:35 am and sunset at 7:14 pm. On the last day of the month, in Sullivan, Kentucky, sunrise is at 5:56 am and sunset at 7:41 pm CDT.

How many hours of sunshine does Sullivan have in April?

In April, the average sunshine duration in Sullivan, Kentucky, is 8.6h.

What is the UV index reading in April in Sullivan?

In Sullivan, the average daily maximum UV index in April is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
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 April
Sullivan, KY

Average temperature in April - Sullivan, KY
  • Average high temperature in April: 66.6°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 April: 48.9°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 April
Sullivan, KY

Average pressure in April - Sullivan, KY
  • Average pressure in April: 29.96"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 April
Sullivan, KY

Average wind speed in April - Sullivan, KY
  • Average wind speed in April: 9.8mph

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 April
Sullivan, KY

Average humidity in April - Sullivan, KY
  • Average humidity in April: 77%

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

Average rainfall in April
Sullivan, KY

Average rainfall in April - Sullivan, KY
  • Average rainfall in April: 2.2"

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 April
Sullivan, KY

Average rainfall days in April - Sullivan, KY
  • Average rainfall days in April: 13 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 April
Sullivan, KY

Average snowfall in April - Sullivan, KY
  • Average snowfall in April: 0.04"

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 April
Sullivan, KY

Average snowfall days in April - Sullivan, KY
  • Average snowfall days in April: 0.3 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 April /
Average sunshine in April
Sullivan, KY

Average daylight in April / Average sunshine in April - Sullivan, KY
  • Average daylight in April: 13h 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 April: 8h and 4min

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 April
Sullivan, KY

Average sunshine days in April - Sullivan, KY
  • Average sunshine days in April: 14.9 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 April
Sullivan, KY

Average UV index in April - Sullivan, KY
  • Average UV index in April: 5

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 April
Sullivan, KY

Average cloud cover in April - Sullivan, KY
  • Average cloud cover in April: 41

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 April
Sullivan, KY

Average visibility in April - Sullivan, KY
  • Average visibility in April: 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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