April weather forecast
Thornton, KY

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Weather in April

April is a comfortable spring month in Thornton, Kentucky, with an average temperature varying between 64.9°F (18.3°C) and 45.1°F (7.3°C).

Temperature

Thornton's transition into April is marked by a temperature shift, moving from a cool 53.4°F (11.9°C) in March to an enjoyable 64.9°F (18.3°C). Thornton, in the month of April, anticipates a consistent average low-temperature of 45.1°F (7.3°C).

Humidity

The average relative humidity in April is 77%.

Rainfall

In Thornton, in April, during 17.6 rainfall days, 3.31" (84mm) of precipitation is typically accumulated. In Thornton, during the entire year, the rain falls for 195.8 days and collects up to 40.35" (1025mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Thornton, during April, snow falls for 1.1 days and regularly aggregates up to 0.39" (10mm) of snow. In Thornton, during the entire year, snow falls for 38.6 days and aggregates up to 19.29" (490mm) of snow.

Daylight

In Thornton, the average length of the day in April is 13h and 11min.
On the first day of April, sunrise is at 7:15 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 8:19 pm EDT.

Sunshine

In April, the average sunshine is 8h.

UV index

In Thornton, the average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum UV index of 4 in April translates into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Thornton in April?

April temperatures vary between a high-temperature of 64.9°F (18.3°C) and a low-temperature of 45.1°F (7.3°C).

What is the average humidity in April?

The average relative humidity in April is 77%.

How much does it rain in April?

In Thornton, in April, it is raining for 17.6 days, with typically 3.31" (84mm) of accumulated precipitation.

How much does it snow in April?

In Thornton, in April, during 1.1 snowfall days, 0.39" (10mm) of snow is typically accumulated.

What is the average length of the day in April?

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

When are sunrise and sunset in April?

On the first day of April, sunrise is at 7:15 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 8:19 pm EDT.

How many hours of sunshine does Thornton have in April?

In Thornton, the average sunshine duration in April is 8h.

What is the UV index reading in April?

In April, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
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
Thornton, KY

Average temperature in April - Thornton, KY
  • Average high temperature in April: 64.9°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (40.1°F).

  • Average low temperature in April: 45.1°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).

Average pressure in April
Thornton, KY

Average pressure in April - Thornton, KY
  • Average pressure in April: 30"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in April
Thornton, KY

Average wind speed in April - Thornton, KY
  • Average wind speed in April: 6.7mph

The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

Average humidity in April
Thornton, KY

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

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is November (76%).

Average rainfall in April
Thornton, KY

Average rainfall in April - Thornton, KY
  • Average rainfall in April: 3.31"

The wettest month (with the highest rainfall) is February (4.13").
The driest month (with the least rainfall) is September (2.48").

Average rainfall days in April
Thornton, KY

Average rainfall days in April - Thornton, KY
  • Average rainfall days in April: 17.6 days

The months with the highest number of rainy days are May and July (20.8 days).
The month with the least rainy days is February (12.6 days).

Average snowfall in April
Thornton, KY

Average snowfall in April - Thornton, KY
  • Average snowfall in April: 0.39"

The month with the highest snowfall is January (5").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in April
Thornton, KY

Average snowfall days in April - Thornton, KY
  • Average snowfall days in April: 1.1 days

The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in April / Average sunshine in April - Thornton, 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 42min).

  • Average sunshine in April: 8h and 0min

The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in April
Thornton, KY

Average sunshine days in April - Thornton, KY
  • Average sunshine days in April: 10.4 days

The month with the most sunshine days is November (15.1 days).
The month with the least sunshine days is May (8 days).

Average UV index in April
Thornton, KY

Average UV index in April - Thornton, KY
  • Average UV index in April: 4

The months with the highest UV index are May, June and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in April
Thornton, KY

Average cloud cover in April - Thornton, KY
  • Average cloud cover in April: 44

The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in April
Thornton, KY

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

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

Thornton, Kentucky, USA

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