May weather forecast
Melville, MT

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Weather in May

May, the last month of the spring in Melville, is a refreshing month, with an average temperature fluctuating between 37.4°F (3°C) and 56.8°F (13.8°C).

Temperature

Noticing a change, the average high-temperature during May moves from April's frosty 46.6°F (8.1°C) to a refreshing 56.8°F (13.8°C). The nighttime temperature dips to a wintry 37.4°F (3°C) on average during May.

Humidity

The average relative humidity in May is 67%.

Rainfall

The month with the most rainfall is May, when the rain falls for 19.8 days and typically aggregates up to 3.15" (80mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. May is the last month it regularly snows. During 1.9 snowfall days, in May, Melville aggregates 1.3" (33mm) of snow. In Melville, during the entire year, snow falls for 67.6 days and aggregates up to 38.19" (970mm) of snow.

Daylight

The average length of the day in May is 14h and 59min.
On the first day of May in Melville, sunrise is at 6:04 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 9:03 pm MDT.

Sunshine

In Melville, the average sunshine in May is 9.9h.

UV index

In May, the average daily maximum UV index in Melville, Montana, is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 4 during May translates into the following guidance:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
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Frequently asked questions

What are May temperatures in Melville?

An average high-temperature, in May, in Melville, is 56.8°F (13.8°C) and the average low-temperature is 37.4°F (3°C).

What is the average humidity in May in Melville?

In May, the average relative humidity in Melville, Montana, is 67%.

What is the rainiest month in Melville?

The month with the most rainfall in Melville, Montana, is May, when the rain falls for 19.8 days and typically aggregates up to 3.15" (80mm) of precipitation.

How many days does it rain in May in Melville?

In Melville, during May, the rain falls for 19.8 days and regularly aggregates up to 3.15" (80mm) of precipitation.

What is the last month it snows in Melville?

May is the last month it regularly snows in Melville. During 1.9 snowfall days, in May, Melville aggregates 1.3" (33mm) of snow.

What is the average length of the day in May in Melville?

In May, the average day length in Melville, Montana, is 14h and 59min.

What time are sunrise and sunset in May in Melville?

In May, on the first day of the month, sunrise is at 6:04 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 9:03 pm MDT.

How many hours of sunshine does Melville have in May?

In May, the average sunshine duration in Melville, Montana, is 9.9h.

How high is the UV index in May in Melville?

The average daily maximum UV index in May in Melville, Montana, is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from 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 May
Melville, MT

Average temperature in May - Melville, MT
  • Average high temperature in May: 56.8°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 May: 37.4°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).

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Average pressure in May
Melville, MT

Average pressure in May - Melville, MT
  • Average pressure in May: 29.93"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).

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Average wind speed in May
Melville, MT

Average wind speed in May - Melville, MT
  • Average wind speed in May: 6.8mph

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).

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Average humidity in May
Melville, MT

Average humidity in May - Melville, MT
  • Average humidity in May: 67%

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

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Average rainfall in May
Melville, MT

Average rainfall in May - Melville, MT
  • Average rainfall in May: 3.15"

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

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Average rainfall days in May
Melville, MT

Average rainfall days in May - Melville, MT
  • Average rainfall days in May: 19.8 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).

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Average snowfall in May
Melville, MT

Average snowfall in May - Melville, MT
  • Average snowfall in May: 1.3"

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

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Average snowfall days in May
Melville, MT

Average snowfall days in May - Melville, MT
  • Average snowfall days in May: 1.9 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).

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Average daylight in May /
Average sunshine in May
Melville, MT

Average daylight in May / Average sunshine in May - Melville, MT
  • Average daylight in May: 15h and 0min

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 May: 9h and 5min

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).

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Average sunshine days in May
Melville, MT

Average sunshine days in May - Melville, MT
  • Average sunshine days in May: 7.7 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).

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Average UV index in May
Melville, MT

Average UV index in May - Melville, MT
  • Average UV index in May: 4

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).

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Average cloud cover in May
Melville, MT

Average cloud cover in May - Melville, MT
  • Average cloud cover in May: 36

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).

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Average visibility in May
Melville, MT

Average visibility in May - Melville, MT
  • Average visibility in May: 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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Melville, Montana, USA

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