April weather forecast
Clayton, ID

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Weather in April

April, like March, in Clayton, Idaho, is another cold spring month, with temperature in the range of an average low of 25°F (-3.9°C) and an average high of 42.4°F (5.8°C).

Temperature

April signals a minor shift in the average high-temperature, moving from March's cold 35.2°F (1.8°C) to a still wintry 42.4°F (5.8°C). April nights experience a consistent temperature drop to a subzero cold 25°F (-3.9°C).

Humidity

In Clayton, the average relative humidity in April is 73%.

Rainfall

In Clayton, in April, during 9 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. In Clayton, during the entire year, the rain falls for 75.7 days and collects up to 6.38" (162mm) of precipitation.

Snowfall

Months with snowfall are January through June, September through December. In Clayton, during April, snow falls for 4.8 days and regularly aggregates up to 1.57" (40mm) of snow. In Clayton, during the entire year, snow falls for 51.7 days and aggregates up to 18.62" (473mm) of snow.

Daylight

In Clayton, the average length of the day in April is 13h and 30min.
On the first day of April in Clayton, sunrise is at 7:17 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 8:40 pm MDT.

Sunshine

The average sunshine in April is 9.9h.

UV index

The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In April, a regular UV index of 2 translates into these guidelines:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is April in Clayton?

An average high-temperature, in April, in Clayton, is 42.4°F (5.8°C) and the average low-temperature is 25°F (-3.9°C).

What is the average humidity in April in Clayton?

In Clayton, Idaho, the average relative humidity in April is 73%.

How much does it rain in Clayton in April?

In Clayton, Idaho, in April, during 9 rainfall days, 0.59" (15mm) of precipitation is typically accumulated.

How much does it snow in Clayton in April?

In April, in Clayton, it is snowing for 4.8 days. Throughout April, 1.57" (40mm) of snow is accumulated.

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

In Clayton, the average day length in April is 13h and 30min.

When are sunrise and sunset in April in Clayton?

On the first day of April in Clayton, sunrise is at 7:17 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 8:40 pm MDT.

How long on average sun shines in April in Clayton?

In Clayton, Idaho, the average sunshine duration in April is 9.9h.

When is the lowest UV index in Clayton?

The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2.

How high is the UV index in April in Clayton?

In April, the average daily maximum UV index in Clayton is 2. A UV Index value of 2, and less, symbolizes a minimal health 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
Clayton, ID

Average temperature in April - Clayton, ID
  • Average high temperature in April: 42.4°F

The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is December (26.1°F).

  • Average low temperature in April: 25°F

The month with the highest average low temperature is August (47.8°F).
The coldest month (with the lowest average low temperature) is January (8.1°F).

Average pressure in April
Clayton, ID

Average pressure in April - Clayton, ID
  • Average pressure in April: 29.98"Hg

The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in April
Clayton, ID

Average wind speed in April - Clayton, ID
  • Average wind speed in April: 5.6mph

The windiest months (with the highest average wind speed) are June and July (5.7mph).
The calmest month (with the lowest average wind speed) is January (4.8mph).

Average humidity in April
Clayton, ID

Average humidity in April - Clayton, ID
  • Average humidity in April: 73%

The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are July and August (38%).

Average rainfall in April
Clayton, ID

Average rainfall in April - Clayton, ID
  • Average rainfall in April: 0.59"

The wettest month (with the highest rainfall) is June (1.1").
The driest month (with the least rainfall) is July (0.28").

Average rainfall days in April
Clayton, ID

Average rainfall days in April - Clayton, ID
  • Average rainfall days in April: 9 days

The month with the highest number of rainy days is June (10.2 days).
The month with the least rainy days is January (3.8 days).

Average snowfall in April
Clayton, ID

Average snowfall in April - Clayton, ID
  • Average snowfall in April: 1.57"

The month with the highest snowfall is February (3.54").
The months with the least snowfall are July and August (0").

Average snowfall days in April
Clayton, ID

Average snowfall days in April - Clayton, ID
  • Average snowfall days in April: 4.8 days

The month with the highest number of snowfall days is December (10.1 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in April /
Average sunshine in April
Clayton, ID

Average daylight in April / Average sunshine in April - Clayton, ID
  • Average daylight in April: 13h and 3min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in April: 9h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 48min).

Average sunshine days in April
Clayton, ID

Average sunshine days in April - Clayton, ID
  • Average sunshine days in April: 17.2 days

The month with the most sunshine days is July (24.1 days).
The months with the least sunshine days are March and April (17.2 days).

Average UV index in April
Clayton, ID

Average UV index in April - Clayton, ID
  • Average UV index in April: 2

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

Average cloud cover in April
Clayton, ID

Average cloud cover in April - Clayton, ID
  • Average cloud cover in April: 34

The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 11).

Average visibility in April
Clayton, ID

Average visibility in April - Clayton, ID
  • Average visibility in April: 6mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).

Clayton, Idaho, USA

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