April weather forecast and climate
Superior, MT

Weather in April

April is a chilly spring month in Superior, Montana, with temperature in the range of an average high of 47.1°F (8.4°C) and an average low of 27.9°F (-2.3°C).

Temperature

In Superior, the average high-temperature in April slightly increases, from a cold 38.8°F (3.8°C) in March, to a frosty 47.1°F (8.4°C). In April, in Superior, the average low-temperature is 27.9°F (-2.3°C).

Humidity

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

Rainfall

In Superior, it is raining for 19.2 days, with typically 2.24" (57mm) of accumulated precipitation. Throughout the year, in Superior, there are 152.1 rainfall days, and 22.09" (561mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, September through December. In Superior, Montana, during April, snow falls for 5.9 days and regularly aggregates up to 2.17" (55mm) of snow. Throughout the year, there are 90.2 snowfall days, and 58.15" (1477mm) of snow is accumulated.

Daylight

In April, the average length of the day is 13.7h.

Sunshine

The average sunshine is 7.8h.

UV index

In April, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 2 interpret into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in April in Superior?

In April, the average relative humidity is 81%.

How much does it rain in Superior in April?

In Superior, during April, the rain falls for 19.2 days and regularly aggregates up to 2.24" (57mm) of precipitation.

How much does it snow in Superior in April?

In Superior, Montana, in April, during 5.9 snowfall days, 2.17" (55mm) of snow is typically accumulated.

How many hours of daylight does Superior have in April?

The average length of the day in April in Superior is 13.7h.

How many hours of sunshine does Superior have in April?

In April, the average sunshine in Superior is 7.8h.

How high is the UV index in April in Superior?

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

Average temperature in April
Superior, MT

Average temperature in April - Superior, MT
  • Average high temperature in April: 47.1°F

The warmest months (with the highest average high temperature) are July and August (78.8°F).
The month with the lowest average high temperature is December (28.9°F).

  • Average low temperature in April: 27.9°F

The month with the highest average low temperature is August (45.7°F).
The coldest month (with the lowest average low temperature) is December (16.2°F).

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Average pressure in April
Superior, MT

Average pressure in April - Superior, MT
  • Average pressure in April: 30"

The month with the highest atmospheric pressure is January (30.19").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed in April
Superior, MT

Average wind speed in April - Superior, MT
  • Average wind speed in April: 4.9mph

The windiest month (with the highest average wind speed) is April (4.9mph).
The calmest month (with the lowest average wind speed) is December (4mph).

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Average humidity in April
Superior, MT

Average humidity in April - Superior, MT
  • Average humidity in April: 81%

The month with the highest relative humidity is January (93%).
Months with the lowest relative humidity are July and August (53%).

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Average rainfall in April
Superior, MT

Average rainfall in April - Superior, MT
  • Average rainfall in April: 2.24"

The wettest month (with the highest rainfall) is January (3.11").
The driest month (with the least rainfall) is August (0.39").

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Average rainfall days in April
Superior, MT

Average rainfall days in April - Superior, MT
  • Average rainfall days in April: 19.2 days

The month with the highest number of rainy days is March (19.9 days).
The month with the least rainy days is August (5.9 days).

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Average snowfall in April
Superior, MT

Average snowfall in April - Superior, MT
  • Average snowfall in April: 2.17"

The month with the highest snowfall is February (15.12").
Months with the least snowfall are June, July and August (0").

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Average snowfall days in April
Superior, MT

Average snowfall days in April - Superior, MT
  • Average snowfall days in April: 5.9 days

The month with the highest number of snowfall days is December (20.4 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
Superior, MT

Average daylight in April / Average sunshine in April - Superior, MT
  • Average daylight in April: 13.7h

The month with the longest days is June (Average daylight: 15.9h).
The month with the shortest days is December (Average daylight: 8.6h).

  • Average sunshine in April: 7.8h

The month with the most sunshine is July (Average sunshine: 11.8h).
The month with the least sunshine is January (Average sunshine: 3.5h).

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Average sunshine days in April
Superior, MT

Average sunshine days in April - Superior, MT
  • Average sunshine days in April: 7.9 days

Months with the most sunshine days are July and August (23.3 days).
The month with the least sunshine days is March (5.8 days).

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Average UV index in April
Superior, MT

Average UV index in April - Superior, 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
Superior, MT

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

The month with the most cloud cover is February (Cloud cover 66).
Months with the least cloud cover are July and August (Cloud cover 15).

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Average visibility in April
Superior, MT

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

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

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