April weather forecast
Sidney, MT

Weather in April

April is a fresh spring month in Sidney, Montana, with average temperature ranging between max 52.5°F (11.4°C) and min 36.1°F (2.3°C).

Temperature

In April, the average high-temperature rises, from a wintry 39.7°F (4.3°C) in March, to a cool 52.5°F (11.4°C). In Sidney, Montana,, the average low-temperature is 36.1°F (2.3°C).

Humidity

In April, the average relative humidity in Sidney is 60%.

Rainfall

In Sidney, it is raining for 10.2 days, with typically 0.75" (19mm) of accumulated precipitation. In Sidney, during the entire year, the rain falls for 85.7 days and collects up to 8.5" (216mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Sidney, Montana, in April, during 4 snowfall days, 0.94" (24mm) of snow is typically accumulated. Throughout the year, in Sidney, there are 56.1 snowfall days, and 8.94" (227mm) of snow is accumulated.

Daylight

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

Sunshine

In April, the average sunshine in Sidney is 8.8h.

UV index

The average daily maximum UV index in Sidney is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 3 in April transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. 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 Sidney?

The average relative humidity in April in Sidney, Montana, is 60%.

How much does it rain in Sidney in April?

In April, in Sidney, the rain falls for 10.2 days. Throughout April, 0.75" (19mm) of precipitation is accumulated.

How many days does it snow in April in Sidney?

In April, in Sidney, it is snowing for 4 days. Throughout April, 0.94" (24mm) of snow is accumulated.

How many hours of daylight does Sidney have in April?

The average length of the day in April in Sidney, Montana, is 13.7h.

How many hours of sunshine does Sidney have in April?

The average sunshine in April in Sidney, Montana, is 8.8h.

How high is the UV index in April in Sidney?

The average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in April
Sidney, MT

Average temperature in April - Sidney, MT
  • Average high temperature in April: 11.4°C

The warmest month (with the highest average high temperature) is July (29°C).
The month with the lowest average high temperature is January (-4.8°C).

  • Average low temperature in April: 2.3°C

The month with the highest average low temperature is July (17.2°C).
The coldest month (with the lowest average low temperature) is January (-12.3°C).

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Average pressure in April
Sidney, MT

Average pressure in April - Sidney, MT
  • Average pressure in April: 1014.1mbar

The month with the highest atmospheric pressure is February (1021.5mbar).
The month with the lowest atmospheric pressure is June (1010.3mbar).

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Average wind speed in April
Sidney, MT

Average wind speed in April - Sidney, MT
  • Average wind speed in April: 17.9km/h

The windiest month (with the highest average wind speed) is April (17.9km/h).
The calmest month (with the lowest average wind speed) is February (14.8km/h).

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Average humidity in April
Sidney, MT

Average humidity in April - Sidney, MT
  • Average humidity in April: 60%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (45%).

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Average rainfall in April
Sidney, MT

Average rainfall in April - Sidney, MT
  • Average rainfall in April: 19mm

The wettest month (with the highest rainfall) is July (34mm).
The driest month (with the least rainfall) is January (6mm).

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Average rainfall days in April
Sidney, MT

Average rainfall days in April - Sidney, MT
  • Average rainfall days in April: 10.2 days

The month with the highest number of rainy days is June (11.4 days).
Months with the least rainy days are January and February (3.2 days).

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Average snowfall in April
Sidney, MT

Average snowfall in April - Sidney, MT
  • Average snowfall in April: 24mm

The month with the highest snowfall is February (45mm).
Months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in April
Sidney, MT

Average snowfall days in April - Sidney, MT
  • Average snowfall days in April: 4 days

The month with the highest number of snowfall days is February (12 days).
Months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in April / Average sunshine in April - Sidney, 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: 8.5h).

  • Average sunshine in April: 8.8h

The month with the most sunshine is July (Average sunshine: 11.7h).
The month with the least sunshine is February (Average sunshine: 4.3h).

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Average sunshine days in April
Sidney, MT

Average sunshine days in April - Sidney, MT
  • Average sunshine days in April: 15.8 days

The month with the most sunshine days is September (20.7 days).
The month with the least sunshine days is April (15.8 days).

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Average UV index in April
Sidney, MT

Average UV index in April - Sidney, MT
  • Average UV index in April: 3

The month with the highest UV index is July (UV index 7).
Months with the lowest UV index are January and February (UV index 1).

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Average cloud cover in April
Sidney, MT

Average cloud cover in April - Sidney, MT
  • Average cloud cover in April: 43

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 18).

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Average visibility in April
Sidney, MT

Average visibility in April - Sidney, MT
  • Average visibility in April: 9km

Months with the highest visibility are May, June, July, August, September and October (10km).
Months with the lowest visibility are January, February, March, April, November and December (9km).

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