April weather forecast
Thornhill, KY

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Weather in April

April in Thornhill, Kentucky, is an enjoyable spring month, with an average temperature varying between 46.9°F (8.3°C) and 66°F (18.9°C).

Temperature

April comes with an increase, with the average high-temperature moving from a fresh 54°F (12.2°C) in March to an enjoyable 66°F (18.9°C). In Thornhill, in April, the average low-temperature is a chilly 46.9°F (8.3°C).

Humidity

In Thornhill, the average relative humidity in April is 76%.

Rainfall

The month with the most rainfall is April, when the rain falls for 16.3 days and typically aggregates up to 3.98" (101mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Thornhill. April is the last month it regularly snows. During 0.6 snowfall days, in April, Thornhill aggregates 0.12" (3mm) of snow. In Thornhill, during the entire year, snow falls for 28.3 days and aggregates up to 7.72" (196mm) of snow.

Daylight

The average length of the day in April is 13h and 13min.
On the first day of the month, sunrise is at 7:26 am and sunset at 8:06 pm. On the last day of April, sunrise is at 6:45 am and sunset at 8:33 pm EDT.

Sunshine

The average sunshine in April in Thornhill is 7.6h.

UV index

In April, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: A daily maximum UV index of 5 in April translates into the following instructions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
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Frequently asked questions

What are the temperatures in Thornhill in April?

The average high-temperature, in April, in Thornhill, is 66°F (18.9°C), while the average low-temperature is 46.9°F (8.3°C).

What is the average humidity in April in Thornhill?

In Thornhill, the average relative humidity in April is 76%.

What is the rainiest month in Thornhill?

The month with the most rainfall is April, when the rain falls for 16.3 days and typically aggregates up to 3.98" (101mm) of precipitation.

How much does it rain in Thornhill in April?

In Thornhill, during April, the rain falls for 16.3 days and regularly aggregates up to 3.98" (101mm) of precipitation.

What is the last month it snows in Thornhill?

April is the last month it regularly snows. During 0.6 snowfall days, in April, Thornhill aggregates 0.12" (3mm) of snow.

What is the average length of the day in April in Thornhill?

The average day length in April in Thornhill, Kentucky, is 13h and 13min.

When is the sunrise / sunset in April in Thornhill?

On the first day of April, sunrise is at 7:26 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 8:33 pm EDT.

How many hours of sunshine does Thornhill have in April?

The average sunshine duration in April is 7.6h.

What is the UV index reading in April in Thornhill?

In April, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe 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
Thornhill, KY

Average temperature in April - Thornhill, KY
  • Average high temperature in April: 66°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 (38.8°F).

  • Average low temperature in April: 46.9°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).

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Average pressure in April
Thornhill, KY

Average pressure in April - Thornhill, KY
  • Average pressure in April: 29.96"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in April
Thornhill, KY

Average wind speed in April - Thornhill, KY
  • Average wind speed in April: 7.8mph

The windiest month (with the highest average wind speed) is January (8mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

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Average humidity in April
Thornhill, KY

Average humidity in April - Thornhill, KY
  • Average humidity in April: 76%

The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is August (73%).

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Average rainfall in April
Thornhill, KY

Average rainfall in April - Thornhill, KY
  • Average rainfall in April: 3.98"

The wettest month (with the highest rainfall) is April (3.98").
The driest month (with the least rainfall) is September (1.85").

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Average rainfall days in April
Thornhill, KY

Average rainfall days in April - Thornhill, KY
  • Average rainfall days in April: 16.3 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is February (10.6 days).

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Average snowfall in April
Thornhill, KY

Average snowfall in April - Thornhill, KY
  • Average snowfall in April: 0.12"

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

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Average snowfall days in April
Thornhill, KY

Average snowfall days in April - Thornhill, KY
  • Average snowfall days in April: 0.6 days

The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in April /
Average sunshine in April
Thornhill, KY

Average daylight in April / Average sunshine in April - Thornhill, KY
  • Average daylight in April: 13h and 1min

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

  • Average sunshine in April: 7h and 4min

The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

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Average sunshine days in April
Thornhill, KY

Average sunshine days in April - Thornhill, KY
  • Average sunshine days in April: 12.2 days

The month with the most sunshine days is October (17.9 days).
The month with the least sunshine days is May (10.2 days).

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Average UV index in April
Thornhill, KY

Average UV index in April - Thornhill, 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, November and December (UV index 2).

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Average cloud cover in April
Thornhill, KY

Average cloud cover in April - Thornhill, KY
  • Average cloud cover in April: 43

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in April
Thornhill, KY

Average visibility in April - Thornhill, KY
  • Average visibility in April: 6mi

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

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Thornhill, Kentucky, USA

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