April weather forecast
Castleford, ID

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Weather in April

April is a mild spring month in Castleford, Idaho, with an average temperature ranging between max 57.4°F (14.1°C) and min 38.8°F (3.8°C).

Temperature

A slight uplift in the average high-temperature marks April, adjusting from March's chilly 49.8°F (9.9°C) to a moderate 57.4°F (14.1°C). Throughout the month of April, Castleford reports a steady low-temperature average of 38.8°F (3.8°C).

Humidity

In Castleford, the average relative humidity in April is 51%.

Rainfall

In Castleford, in April, during 9.3 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. In Castleford, during the entire year, the rain falls for 85.9 days and collects up to 8.27" (210mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. April is the last month it regularly snows. During 1.2 snowfall days, in April, Castleford aggregates 0.63" (16mm) of snow. In Castleford, during the entire year, snow falls for 33.1 days and aggregates up to 16.14" (410mm) of snow.

Daylight

The average length of the day in April in Castleford is 13h and 25min.
On the first day of the month, sunrise is at 7:20 am and sunset at 8:06 pm. On the last day of April, sunrise is at 6:34 am and sunset at 8:38 pm MDT.

Sunshine

In April, the average sunshine is 9.7h.

UV index

The average daily maximum UV index in April in Castleford is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 3 during April translates into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
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Frequently asked questions

What is the average April temperature in Castleford?

In Castleford, in April, the average high-temperature is 57.4°F (14.1°C), and the average low-temperature is 38.8°F (3.8°C).

What is the average humidity in April in Castleford?

The average relative humidity in April is 51%.

How many days does it rain in April in Castleford?

In Castleford, Idaho, in April, it is raining for 9.3 days, with typically 0.63" (16mm) of accumulated precipitation.

What is the last month it snows in Castleford?

April is the last month it regularly snows in Castleford. During 1.2 snowfall days, in April, Castleford aggregates 0.63" (16mm) of snow.

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

In April, the average day length in Castleford, Idaho, is 13h and 25min.

What time are sunrise and sunset in April in Castleford?

On the first day of April, sunrise is at 7:20 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 8:38 pm MDT.

How many hours of sunshine does Castleford have in April?

The average sunshine duration in April in Castleford, Idaho, is 9.7h.

What is the UV index reading in April in Castleford?

In Castleford, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Castleford, ID

Average temperature in April - Castleford, ID
  • Average high temperature in April: 57.4°F

The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is December (34.2°F).

  • Average low temperature in April: 38.8°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is December (22.8°F).

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Average pressure in April
Castleford, ID

Average pressure in April - Castleford, ID
  • Average pressure in April: 29.95"Hg

The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in April
Castleford, ID

Average wind speed in April - Castleford, ID
  • Average wind speed in April: 10mph

The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (7.2mph).

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Average humidity in April
Castleford, ID

Average humidity in April - Castleford, ID
  • Average humidity in April: 51%

The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is July (27%).

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Average rainfall in April
Castleford, ID

Average rainfall in April - Castleford, ID
  • Average rainfall in April: 0.63"

The wettest month (with the highest rainfall) is January (1.18").
The driest month (with the least rainfall) is July (0.28").

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Average rainfall days in April
Castleford, ID

Average rainfall days in April - Castleford, ID
  • Average rainfall days in April: 9.3 days

The month with the highest number of rainy days is March (10.8 days).
The month with the least rainy days is October (5.2 days).

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Average snowfall in April
Castleford, ID

Average snowfall in April - Castleford, ID
  • Average snowfall in April: 0.63"

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

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Average snowfall days in April
Castleford, ID

Average snowfall days in April - Castleford, ID
  • Average snowfall days in April: 1.2 days

The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in April / Average sunshine in April - Castleford, ID
  • Average daylight in April: 13h and 2min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in April: 9h and 4min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

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Average sunshine days in April
Castleford, ID

Average sunshine days in April - Castleford, ID
  • Average sunshine days in April: 18.9 days

The month with the most sunshine days is October (24.5 days).
The month with the least sunshine days is February (16.1 days).

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Average UV index in April
Castleford, ID

Average UV index in April - Castleford, ID
  • Average UV index in April: 3

The month with the highest UV index is July (UV index 7).
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
Castleford, ID

Average cloud cover in April - Castleford, ID
  • Average cloud cover in April: 28

The month with the most cloud cover is December (Cloud cover 39).
The months with the least cloud cover are July and August (Cloud cover 10).

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Average visibility in April
Castleford, ID

Average visibility in April - Castleford, ID
  • 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).

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Castleford, Idaho, USA

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