April weather forecast
Great Falls, MT

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A far view from on top of the vast Missouri River of the City of Lights, Great Falls, Montana
A far view from on top of the vast Missouri River of the City of Lights, Great Falls, Montana

Weather in April

April is characterized by an increased interval of sunshine and warm temperatures. Temperatures rise substantially, with the mercury touching a higher 52.3°F (11.3°C). The weather in this month shifts positively compared to March with more daylight hours providing ample opportunity for outdoor activities. Moving from April to May, there is a bit of an upward trend in temperature, interspersed with a possibility of increased rainfall. The period is ideal for gardening and picnicking thanks to the relatively balmy conditions.

Temperature

As April begins, there is an increase in the average high-temperature, moving from a chilly 43.3°F (6.3°C) in March to a cool 52.3°F (11.3°C). During April in Great Falls, the average low-temperature is recorded at an icy 34.9°F (1.6°C).

Humidity

In April, the average relative humidity in Great Falls is 61%.

Rainfall

In Great Falls, Montana, in April, it is raining for 9.9 days, with typically 0.55" (14mm) of accumulated precipitation. Throughout the year, in Great Falls, there are 68.2 rainfall days, and 4.49" (114mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, September through December. In Great Falls, Montana, in April, during 4.4 snowfall days, 1.42" (36mm) of snow is typically accumulated. In Great Falls, during the entire year, snow falls for 45.4 days and aggregates up to 11.61" (295mm) of snow.

Daylight

In April, the average length of the day in Great Falls is 13h and 40min.
On the first day of April, sunrise is at 7:01 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 8:36 pm MDT.

Sunshine

In April, the average sunshine is 9.1h.

UV index

In April, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 3 during April translates into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Experience reduced UV exposure by about half when donning a wide-brim hat. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
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Frequently asked questions

What is the temperature in April in Great Falls?

The high-temperature, in April, in Great Falls, records 52.3°F (11.3°C), while the low-temperature is 34.9°F (1.6°C).

What is the average humidity in April in Great Falls?

The average relative humidity in April is 61%.

How many days does it rain in April in Great Falls?

In Great Falls, Montana, during April, the rain falls for 9.9 days and regularly aggregates up to 0.55" (14mm) of precipitation.

How much does it snow in Great Falls in April?

In April, it is snowing for 4.4 days. Throughout April, 1.42" (36mm) of snow is accumulated.

How many hours of daylight does Great Falls have in April?

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

When is the sunrise / sunset in April in Great Falls?

In April, on the first day of the month, sunrise is at 7:01 am and sunset at 7:55 pm. On the last day of the month, in Great Falls, sunrise is at 6:08 am and sunset at 8:36 pm MDT.

How many hours of sunshine does Great Falls have in April?

The average sunshine duration in April in Great Falls, Montana, is 9.1h.

How high is the UV index in April in Great Falls?

The average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from unsafe 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
Great Falls, MT

Average temperature in April - Great Falls, MT
  • Average high temperature in April: 52.3°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is December (30°F).

  • Average low temperature in April: 34.9°F

The month with the highest average low temperature is August (57.7°F).
The coldest months (with the lowest average low temperature) are February and December (18.3°F).

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Average pressure in April
Great Falls, MT

Average pressure in April - Great Falls, MT
  • Average pressure in April: 29.95"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in April
Great Falls, MT

Average wind speed in April - Great Falls, MT
  • Average wind speed in April: 10mph

The windiest month (with the highest average wind speed) is November (11.4mph).
The calmest month (with the lowest average wind speed) is August (7.7mph).

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Average humidity in April
Great Falls, MT

Average humidity in April - Great Falls, MT
  • Average humidity in April: 61%

The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is August (40%).

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Average rainfall in April
Great Falls, MT

Average rainfall in April - Great Falls, MT
  • Average rainfall in April: 0.55"

The wettest month (with the highest rainfall) is June (0.87").
The driest month (with the least rainfall) is December (0.16").

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Average rainfall days in April
Great Falls, MT

Average rainfall days in April - Great Falls, MT
  • Average rainfall days in April: 9.9 days

The month with the highest number of rainy days is April (9.9 days).
The month with the least rainy days is December (2.7 days).

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Average snowfall in April
Great Falls, MT

Average snowfall in April - Great Falls, MT
  • Average snowfall in April: 1.42"

The month with the highest snowfall is February (2.09").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in April
Great Falls, MT

Average snowfall days in April - Great Falls, MT
  • Average snowfall days in April: 4.4 days

The month with the highest number of snowfall days is February (10 days).
The 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
Great Falls, MT

Average daylight in April / Average sunshine in April - Great Falls, MT
  • 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: 9h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 30min).

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Average sunshine days in April
Great Falls, MT

Average sunshine days in April - Great Falls, MT
  • Average sunshine days in April: 16.2 days

The month with the most sunshine days is July (26.1 days).
The months with the least sunshine days are February and April (16.2 days).

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Average UV index in April
Great Falls, MT

Average UV index in April - Great Falls, MT
  • Average UV index in April: 3

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average cloud cover in April
Great Falls, MT

Average cloud cover in April - Great Falls, MT
  • Average cloud cover in April: 40

The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 13).

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Average visibility in April
Great Falls, MT

Average visibility in April - Great Falls, MT
  • Average visibility in April: 6mi

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

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Great Falls, Montana, USA

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