April weather forecast
Coolin, ID

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Weather in April

April in Coolin, Idaho, is a chilly spring month, with an average temperature varying between 47.8°F (8.8°C) and 28.8°F (-1.8°C).

Temperature

The shift into April is marked by a rise in the average high-temperature, moving from March's cold 37.9°F (3.3°C) to a chilly 47.8°F (8.8°C). April nights cool down to an average low-temperature of 28.8°F (-1.8°C).

Humidity

In Coolin, the average relative humidity in April is 81%.

Rainfall

In Coolin, Idaho, in April, it is raining for 17.7 days, with typically 1.81" (46mm) of accumulated precipitation. Throughout the year, there are 135.4 rainfall days, and 23.03" (585mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall in Coolin. In Coolin, during April, snow falls for 5.6 days and regularly aggregates up to 2.28" (58mm) of snow. In Coolin, during the entire year, snow falls for 81.3 days and aggregates up to 59.45" (1510mm) of snow.

Daylight

The average length of the day in April in Coolin is 13h and 44min.
On the first day of the month, sunrise is at 6:23 am and sunset at 7:18 pm. On the last day of April, sunrise is at 5:27 am and sunset at 8:01 pm PDT.

Sunshine

The average sunshine in April is 7.7h.

UV index

In Coolin, the average daily maximum UV index in April is 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 2 during April translates into these guidelines:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Updated: Jun 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are April temperatures?

In Coolin, in April, the average high-temperature is 47.8°F (8.8°C), and the average low-temperature is 28.8°F (-1.8°C).

What is the average humidity in April?

In Coolin, the average relative humidity in April is 81%.

How much does it rain in April?

In Coolin, in April, during 17.7 rainfall days, 1.81" (46mm) of precipitation is typically accumulated.

How many days does it snow in April?

In Coolin, in April, snow falls for 5.6 days, with typically accumulated 2.28" (58mm) of snow.

How many hours of daylight does Coolin have in April?

In Coolin, the average day length in April is 13h and 44min.

When is the sunrise / sunset in April?

In April, on the first day of the month, sunrise is at 6:23 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 8:01 pm PDT.

How many hours of sunshine does Coolin have in April?

In Coolin, the average sunshine duration in April is 7.7h.

How high is the UV index in April in Coolin?

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

Average temperature in April - Coolin, ID
  • Average high temperature in April: 47.8°F

The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is December (27.7°F).

  • Average low temperature in April: 28.8°F

The month with the highest average low temperature is August (47.1°F).
The coldest months (with the lowest average low temperature) are February and December (16.7°F).

Average pressure in April
Coolin, ID

Average pressure in April - Coolin, ID
  • Average pressure in April: 29.99"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in April
Coolin, ID

Average wind speed in April - Coolin, ID
  • Average wind speed in April: 4.2mph

The windiest months (with the highest average wind speed) are April and May (4.2mph).
The calmest month (with the lowest average wind speed) is December (3.4mph).

Average humidity in April
Coolin, ID

Average humidity in April - Coolin, ID
  • Average humidity in April: 81%

The month with the highest relative humidity is January (95%).
The month with the lowest relative humidity is August (54%).

Average rainfall in April
Coolin, ID

Average rainfall in April - Coolin, ID
  • Average rainfall in April: 1.81"

The wettest month (with the highest rainfall) is December (2.83").
The driest month (with the least rainfall) is August (0.59").

Average rainfall days in April
Coolin, ID

Average rainfall days in April - Coolin, ID
  • Average rainfall days in April: 17.7 days

The month with the highest number of rainy days is April (17.7 days).
The month with the least rainy days is February (5.3 days).

Average snowfall in April
Coolin, ID

Average snowfall in April - Coolin, ID
  • Average snowfall in April: 2.28"

The month with the highest snowfall is January (14.76").
The months with the least snowfall are June, July and August (0").

Average snowfall days in April
Coolin, ID

Average snowfall days in April - Coolin, ID
  • Average snowfall days in April: 5.6 days

The month with the highest number of snowfall days is December (17.6 days).
The months with the least snowfall days are June, July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in April: 7h and 4min

The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

Average sunshine days in April
Coolin, ID

Average sunshine days in April - Coolin, ID
  • Average sunshine days in April: 9 days

The month with the most sunshine days is August (21 days).
The month with the least sunshine days is April (9 days).

Average UV index in April
Coolin, ID

Average UV index in April - Coolin, 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
Coolin, ID

Average cloud cover in April - Coolin, ID
  • Average cloud cover in April: 51

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 16).

Average visibility in April
Coolin, ID

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

The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).

Coolin, Idaho, USA

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