April weather forecastYaak, MT

April

Weather in April

April is a frosty spring month in Yaak, Montana, with an average temperature varying between 27°F (-2.8°C) and 46.4°F (8°C).

Temperature

The onset of April marks an increase in the average high-temperature, moving from a wintry 36.3°F (2.4°C) in March to a chilly 46.4°F (8°C). April brings Yaak a consistent average low-temperature of 27°F (-2.8°C).

Humidity

In April, the average relative humidity is 81%.

Rainfall

In April, the rain falls for 17 days. Throughout April, 1.38" (35mm) of precipitation is accumulated. Throughout the year, there are 136.3 rainfall days, and 15.35" (390mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. In Yaak, during April, snow falls for 8.2 days and regularly aggregates up to 2.56" (65mm) of snow. Throughout the year, there are 110.7 snowfall days, and 46.81" (1189mm) of snow is accumulated.

Daylight

The average length of the day in April is 13h and 45min.
On the first day of April, sunrise is at 7:18 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 8:57 pm MDT.

Sunshine

In April, the average sunshine is 7.9h.

UV index

In April, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 2 in April interprets into the following advice:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.

Updated: Aug 9, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature during April is 46.4°F (8°C) and the low-temperature is 27°F (-2.8°C).

The average relative humidity in April in Yaak is 81%.

In Yaak, during April, the rain falls for 17 days and regularly aggregates up to 1.38" (35mm) of precipitation.

In Yaak, in April, during 8.2 snowfall days, 2.56" (65mm) of snow is typically accumulated.

In Yaak, the average day length in April is 13h and 45min.

In April, on the first day of the month, sunrise is at 7:18 am and sunset at 8:14 pm. On the last day of the month, in Yaak, sunrise is at 6:22 am and sunset at 8:57 pm MDT.

In Yaak, the average sunshine duration in April is 7.9h.

The average daily maximum UV index in April is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M April M J J A S O N D

Mar

April

May

Average high temperature

36.3°F

46.4°F

59.7°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

4.4mph

4.7mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

6.3

8.2

12.6

Average UV index

Average cloud cover

Average visibility

Average temperature in April
Yaak, MT

Average high temperature in April: 46.4°F

The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is December (25.5°F).

Average low temperature in April: 27°F

The month with the highest average low temperature is August (45.1°F).
The coldest month (with the lowest average low temperature) is December (13.1°F).

Average pressure in April
Yaak, MT

Average pressure in April: 29.99"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in April
Yaak, MT

Average wind speed in April: 4.3mph

The windiest month (with the highest average wind speed) is June (4.4mph).
The calmest month (with the lowest average wind speed) is December (3.4mph).

Average humidity in April
Yaak, MT

Average humidity in April: 81%

The month with the highest relative humidity is January (95%).
The month with the lowest relative humidity is August (55%).

Average rainfall in April
Yaak, MT

Average rainfall in April: 1.38"

The wettest month (with the highest rainfall) is March (1.85").
The driest month (with the least rainfall) is August (0.39").

Average rainfall days in April
Yaak, MT

Average rainfall days in April: 17 days

The month with the highest number of rainy days is April (17 days).
The month with the least rainy days is August (6.1 days).

Average snowfall in April
Yaak, MT

Average snowfall in April: 2.56"

The month with the highest snowfall is February (10").
The months with the least snowfall are June, July and August (0").

Average snowfall days in April
Yaak, MT

Average snowfall days in April: 8.2 days

The month with the highest number of snowfall days is December (22.1 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in April /
Average sunshine in April
Yaak, MT

Average daylight in April: 13h and 42min

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 18min).

Average sunshine in April: 7h and 54min

The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

Average sunshine days in April
Yaak, MT

Average sunshine days in April: 8.2 days

The month with the most sunshine days is August (21.6 days).
The month with the least sunshine days is March (6.3 days).

Average UV index in April
Yaak, MT

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).