April weather forecast
Smelterville, ID

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Weather in April

April in Smelterville, Idaho, is a chilly spring month, with an average temperature ranging between min 30.6°F (-0.8°C) and max 48.2°F (9°C).

Temperature

Smelterville, Idaho, perceives a slight temperature ascent during April, with average high-temperatures adjusting from an icy 40.5°F (4.7°C) in March to a chilly 48.2°F (9°C). An average low-temperature of 30.6°F (-0.8°C) is expected during April.

Humidity

In April, the average relative humidity is 78%.

Rainfall

In April, the rain falls for 17.5 days. Throughout April, 1.97" (50mm) of precipitation is accumulated. Throughout the year, there are 140.1 rainfall days, and 22.2" (564mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. In April, it is snowing for 3.6 days. Throughout April, 1.38" (35mm) of snow is accumulated. Throughout the year, there are 57.8 snowfall days, and 45.31" (1151mm) of snow is accumulated.

Daylight

In April, the average length of the day is 13h and 40min.
On the first day of the month, sunrise is at 6:21 am and sunset at 7:15 pm. On the last day of April, sunrise is at 5:27 am and sunset at 7:55 pm PDT.

Sunshine

In Smelterville, the average sunshine in April is 8.1h.

UV index

The average daily maximum UV index in April is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In April, a regular UV index of 2 translates into these guidelines:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Always opt for UVA and UVB-resistant sunglasses on radiant days. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average April temperature?

In April, in Smelterville, the average high-temperature is 48.2°F (9°C), and the average low-temperature is 30.6°F (-0.8°C).

What is the average humidity in April?

The average relative humidity in April is 78%.

How much does it rain in April?

In Smelterville, in April, it is raining for 17.5 days, with typically 1.97" (50mm) of accumulated precipitation.

How many days does it snow in April?

In Smelterville, in April, during 3.6 snowfall days, 1.38" (35mm) of snow is typically accumulated.

How many hours of daylight does Smelterville have in April?

In April, the average day length is 13h and 40min.

When are sunrise and sunset in April?

On the first day of April, sunrise is at 6:21 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 7:55 pm PDT.

How many hours of sunshine does Smelterville have in April?

The average sunshine duration in April is 8.1h.

What is the UV index reading in April?

In April, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health threat 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
Smelterville, ID

Average temperature in April - Smelterville, ID
  • Average high temperature in April: 48.2°F

The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is December (30.4°F).

  • Average low temperature in April: 30.6°F

The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (19.8°F).

Average pressure in April
Smelterville, ID

Average pressure in April - Smelterville, ID
  • Average pressure in April: 30"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).

Average wind speed in April
Smelterville, ID

Average wind speed in April - Smelterville, ID
  • Average wind speed in April: 4.8mph

The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest months (with the lowest average wind speed) are September and December (4mph).

Average humidity in April
Smelterville, ID

Average humidity in April - Smelterville, ID
  • Average humidity in April: 78%

The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (52%).

Average rainfall in April
Smelterville, ID

Average rainfall in April - Smelterville, ID
  • Average rainfall in April: 1.97"

The wettest month (with the highest rainfall) is January (2.8").
The driest month (with the least rainfall) is July (0.51").

Average rainfall days in April
Smelterville, ID

Average rainfall days in April - Smelterville, ID
  • Average rainfall days in April: 17.5 days

The month with the highest number of rainy days is March (17.8 days).
The month with the least rainy days is August (6.3 days).

Average snowfall in April
Smelterville, ID

Average snowfall in April - Smelterville, ID
  • Average snowfall in April: 1.38"

The month with the highest snowfall is January (12.36").
The months with the least snowfall are June, July and August (0").

Average snowfall days in April
Smelterville, ID

Average snowfall days in April - Smelterville, ID
  • Average snowfall days in April: 3.6 days

The month with the highest number of snowfall days is December (13.5 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in April / Average sunshine in April - Smelterville, ID
  • Average daylight in April: 13h and 4min

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

  • Average sunshine in April: 8h and 1min

The month with the most sunshine is August (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 3h and 36min).

Average sunshine days in April
Smelterville, ID

Average sunshine days in April - Smelterville, ID
  • Average sunshine days in April: 9.5 days

The month with the most sunshine days is July (22.9 days).
The month with the least sunshine days is March (8.7 days).

Average UV index in April
Smelterville, ID

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

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in April
Smelterville, ID

Average cloud cover in April - Smelterville, ID
  • Average cloud cover in April: 48

The months with the most cloud cover are January, February and December (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 14).

Average visibility in April
Smelterville, ID

Average visibility in April - Smelterville, ID
  • Average visibility in April: 5mi

The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (3mi).

Smelterville, Idaho, USA

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