April weather forecast
Greycliff, MT

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Weather in April

April in Greycliff, Montana, is a frosty spring month, with an average temperature ranging between min 29.7°F (-1.3°C) and max 46.6°F (8.1°C).

Temperature

As April arrives, Greycliff's weather shows a minor increase in high-temperatures, edging from March's cold 39.4°F (4.1°C) to a frosty 46.6°F (8.1°C). Greycliff's average low-temperature for the month of April records at a freezing cold 29.7°F (-1.3°C).

Humidity

In April, the average relative humidity is 71%.

Rainfall

In April, in Greycliff, the rain falls for 14.8 days. Throughout April, 1.81" (46mm) of precipitation is accumulated. In Greycliff, during the entire year, the rain falls for 129.6 days and collects up to 15.83" (402mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. In Greycliff, in April, during 7.9 snowfall days, 6.38" (162mm) of snow is typically accumulated. Throughout the year, there are 67.6 snowfall days, and 38.19" (970mm) of snow is accumulated.

Daylight

In Greycliff, the average length of the day in April is 13h and 34min.
On the first day of April in Greycliff, sunrise is at 6:57 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 8:25 pm MDT.

Sunshine

In Greycliff, the average sunshine in April is 9.4h.

UV index

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Greycliff. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: An average UV index of 2 in April transforms into this advice:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. 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. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Updated: Feb 13, 2024 | Published by: Weather U.S. | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What are the temperatures in Greycliff in April?

In Greycliff, 46.6°F (8.1°C) is the average high-temperature and 29.7°F (-1.3°C) is the average low-temperature during April.

What is the average humidity in April in Greycliff?

The average relative humidity in April is 71%.

How many days does it rain in April in Greycliff?

In Greycliff, Montana, in April, it is raining for 14.8 days, with typically 1.81" (46mm) of accumulated precipitation.

How many days does it snow in April in Greycliff?

In Greycliff, Montana, during April, snow falls for 7.9 days and regularly aggregates up to 6.38" (162mm) of snow.

What is the average length of the day in April in Greycliff?

The average day length in April in Greycliff is 13h and 34min.

What time are sunrise and sunset in April in Greycliff?

In April, on the first day of the month, sunrise is at 6:57 am and sunset at 7:48 pm. On the last day of the month, in Greycliff, sunrise is at 6:06 am and sunset at 8:25 pm MDT.

How long on average sun shines in April in Greycliff?

In Greycliff, the average sunshine duration in April is 9.4h.

What is the month with the lowest UV index in Greycliff?

The months with the lowest UV index in Greycliff are January through April, October through December, with an average maximum UV index of 2.

How high is the UV index in April in Greycliff?

The average daily maximum UV index in April in Greycliff, Montana, is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unprotected exposure to 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
Greycliff, MT

Average temperature in April - Greycliff, MT
  • Average high temperature in April: 46.6°F

The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is December (28.4°F).

  • Average low temperature in April: 29.7°F

The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is February (15.3°F).

Average pressure in April
Greycliff, MT

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

The months with the highest atmospheric pressure are January and December (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in April
Greycliff, MT

Average wind speed in April - Greycliff, MT
  • Average wind speed in April: 8.1mph

The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).

Average humidity in April
Greycliff, MT

Average humidity in April - Greycliff, MT
  • Average humidity in April: 71%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (47%).

Average rainfall in April
Greycliff, MT

Average rainfall in April - Greycliff, MT
  • Average rainfall in April: 1.81"

The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in April
Greycliff, MT

Average rainfall days in April - Greycliff, MT
  • Average rainfall days in April: 14.8 days

The month with the highest number of rainy days is May (19.8 days).
The months with the least rainy days are January and December (5.3 days).

Average snowfall in April
Greycliff, MT

Average snowfall in April - Greycliff, MT
  • Average snowfall in April: 6.38"

The month with the highest snowfall is March (7.09").
The months with the least snowfall are June, July and August (0").

Average snowfall days in April
Greycliff, MT

Average snowfall days in April - Greycliff, MT
  • Average snowfall days in April: 7.9 days

The month with the highest number of snowfall days is February (12.9 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in April / Average sunshine in April - Greycliff, MT
  • Average daylight in April: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in April: 9h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 12min).

Average sunshine days in April
Greycliff, MT

Average sunshine days in April - Greycliff, MT
  • Average sunshine days in April: 10.1 days

The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is May (7.7 days).

Average UV index in April
Greycliff, MT

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

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

Average cloud cover in April
Greycliff, MT

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

The month with the most cloud cover is February (Cloud cover 41).
The months with the least cloud cover are July and August (Cloud cover 16).

Average visibility in April
Greycliff, MT

Average visibility in April - Greycliff, 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).

Greycliff, Montana, USA

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