April weather forecast
Simpson, MT

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Weather in April

April in Simpson, Montana, is a cool spring month, with an average temperature fluctuating between 53.2°F (11.8°C) and 36.3°F (2.4°C).

Temperature

The arrival of April brings a temperature shift, with the average high-temperature escalating from a cold 39.7°F (4.3°C) in March to a cool 53.2°F (11.8°C). Throughout April nights, Simpson experiences a consistent temperature average of 36.3°F (2.4°C).

Humidity

In Simpson, the average relative humidity in April is 59%.

Rainfall

In Simpson, Montana, in April, during 11.3 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. In Simpson, during the entire year, the rain falls for 98.7 days and collects up to 8.23" (209mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall in Simpson, Montana. In April, it is snowing for 4.5 days. Throughout April, 1.46" (37mm) of snow is accumulated. In Simpson, during the entire year, snow falls for 53.5 days and aggregates up to 14.25" (362mm) of snow.

Daylight

The average length of the day in April is 13h and 45min.
On the first day of the month, sunrise is at 6:56 am and sunset at 7:52 pm. On the last day of April, in Simpson, sunrise is at 6:00 am and sunset at 8:35 pm MDT.

Sunshine

The average sunshine in April in Simpson, Montana, is 9.5h.

UV index

In Simpson, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: During April, 3 as the daily maximum UV index converts into the following advice:
Make use of precautions - It is urged to ward off sun damage. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What are April temperatures in Simpson?

In Simpson, 53.2°F (11.8°C) is the average high-temperature and 36.3°F (2.4°C) is the average low-temperature during April.

What is the average humidity in April in Simpson?

In Simpson, Montana, the average relative humidity in April is 59%.

How much does it rain in Simpson in April?

In Simpson, in April, it is raining for 11.3 days, with typically 0.71" (18mm) of accumulated precipitation.

How much does it snow in Simpson in April?

In Simpson, Montana, during April, snow falls for 4.5 days and regularly aggregates up to 1.46" (37mm) of snow.

How many hours of daylight does Simpson have in April?

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

When is the sunrise / sunset in April in Simpson?

In April, on the first day of the month, sunrise is at 6:56 am and sunset at 7:52 pm. On the last day of the month, in Simpson, sunrise is at 6:00 am and sunset at 8:35 pm MDT.

How long on average sun shines in April in Simpson?

In Simpson, Montana, the average sunshine duration in April is 9.5h.

What is the UV index intensity in April in Simpson?

In April, the average daily maximum UV index in Simpson, Montana, is 3. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
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
Simpson, MT

Average temperature in April - Simpson, MT
  • Average high temperature in April: 53.2°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The months with the lowest average high temperature are January and December (27.1°F).

  • Average low temperature in April: 36.3°F

The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is February (13.5°F).

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Average pressure in April
Simpson, MT

Average pressure in April - Simpson, MT
  • Average pressure in April: 29.92"Hg

The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in April
Simpson, MT

Average wind speed in April - Simpson, MT
  • Average wind speed in April: 10.6mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).

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Average humidity in April
Simpson, MT

Average humidity in April - Simpson, MT
  • Average humidity in April: 59%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (40%).

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Average rainfall in April
Simpson, MT

Average rainfall in April - Simpson, MT
  • Average rainfall in April: 0.71"

The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is December (0.31").

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Average rainfall days in April
Simpson, MT

Average rainfall days in April - Simpson, MT
  • Average rainfall days in April: 11.3 days

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is February (4 days).

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Average snowfall in April
Simpson, MT

Average snowfall in April - Simpson, MT
  • Average snowfall in April: 1.46"

The month with the highest snowfall is February (2.72").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in April
Simpson, MT

Average snowfall days in April - Simpson, MT
  • Average snowfall days in April: 4.5 days

The month with the highest number of snowfall days is February (11 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
Simpson, MT

Average daylight in April / Average sunshine in April - Simpson, MT
  • Average daylight in April: 13h and 5min

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: 9h and 3min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).

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Average sunshine days in April
Simpson, MT

Average sunshine days in April - Simpson, MT
  • Average sunshine days in April: 12.8 days

The month with the most sunshine days is September (20.3 days).
The month with the least sunshine days is April (12.8 days).

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Average UV index in April
Simpson, MT

Average UV index in April - Simpson, 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
Simpson, MT

Average cloud cover in April - Simpson, MT
  • Average cloud cover in April: 39

The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 16).

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Average visibility in April
Simpson, MT

Average visibility in April - Simpson, 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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Simpson, Montana, USA

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