April weather forecast
Eureka, MT

Weather in April

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

Temperature

In Eureka, Montana, the average high-temperature increases, from a wintry 36.3°F (2.4°C) in March, to a frosty 46.4°F (8°C). In Eureka, the average low-temperature is 27°F (-2.8°C).

Humidity

The average relative humidity in April is 81%.

Rainfall

In Eureka, Montana,, it is raining for 17 days, with typically 1.38" (35mm) of accumulated precipitation. In Eureka, during the entire year, the rain falls for 136.3 days and collects up to 15.35" (390mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall in Eureka. In April, it is snowing for 8.2 days. Throughout April, 2.56" (65mm) of snow is accumulated. Throughout the year, there are 110.7 snowfall days, and 46.81" (1189mm) of snow is accumulated.

Daylight

In Eureka, the average length of the day is 13.8h.

Sunshine

The average sunshine in April is 7.9h.

UV index

In April, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health risk from the exposure to the Sun's UV rays for ordinary individuals.
Note: In April, the average maximum UV index of 2 translate into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in April in Eureka?

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

How much does it rain in Eureka in April?

In Eureka, in April, during 17 rainfall days, 1.38" (35mm) of precipitation is typically accumulated.

How many days does it snow in April in Eureka?

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

How many hours of daylight does Eureka have in April?

In April, the average length of the day in Eureka is 13.8h.

How long on average sun shines in April in Eureka?

In Eureka, Montana, the average sunshine in April is 7.9h.

What is the UV index intensity in April in Eureka?

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

Average temperature in April
Eureka, MT

Average temperature in April - Eureka, 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).

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Average pressure in April
Eureka, MT

Average pressure in April - Eureka, MT
  • Average pressure in April: 29.99"

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

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Average wind speed in April
Eureka, MT

Average wind speed in April - Eureka, 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).

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Average humidity in April
Eureka, MT

Average humidity in April - Eureka, 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%).

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Average rainfall in April
Eureka, MT

Average rainfall in April - Eureka, 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").

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Average rainfall days in April
Eureka, MT

Average rainfall days in April - Eureka, 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).

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Average snowfall in April
Eureka, MT

Average snowfall in April - Eureka, MT
  • Average snowfall in April: 2.56"

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

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Average snowfall days in April
Eureka, MT

Average snowfall days in April - Eureka, MT
  • Average snowfall days in April: 8.2 days

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

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

Average daylight in April / Average sunshine in April - Eureka, MT
  • Average daylight in April: 13.8h

The month with the longest days is June (Average daylight: 16.1h).
The month with the shortest days is December (Average daylight: 8.3h).

  • Average sunshine in April: 7.9h

The month with the most sunshine is August (Average sunshine: 11.7h).
The month with the least sunshine is January (Average sunshine: 3.1h).

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Average sunshine days in April
Eureka, MT

Average sunshine days in April - Eureka, 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).

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Average UV index in April
Eureka, MT

Average UV index in April - Eureka, MT
  • Average UV index in April: 2

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

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Average cloud cover in April
Eureka, MT

Average cloud cover in April - Eureka, MT
  • Average cloud cover in April: 49

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 15).

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Average visibility in April
Eureka, MT

Average visibility in April - Eureka, MT
  • Average visibility in April: 5mi

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

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