May weather forecast
Arlee, MT

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Weather in May

The last month of the spring, May, is a moderate month in Arlee, Montana, with an average temperature ranging between min 34.5°F (1.4°C) and max 59°F (15°C).

Temperature

The average high-temperature increases in May, moving from a frosty 46.9°F (8.3°C) in April to a moderate 59°F (15°C). Arlee experiences a substantial divergence from daytime highs in May, with average lows hovering around a wintry 34.5°F (1.4°C).

Humidity

The average relative humidity in May is 69%.

Rainfall

In May, the rain falls for 11.6 days. Throughout May, 1.38" (35mm) of precipitation is accumulated. Throughout the year, in Arlee, Montana, there are 92.3 rainfall days, and 14.37" (365mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through June, September through December. In Arlee, in May, snow falls for 5.6 days, with typically accumulated 2.76" (70mm) of snow. In Arlee, during the entire year, snow falls for 121.1 days and aggregates up to 68.31" (1735mm) of snow.

Daylight

In Arlee, the average length of the day in May is 15h and 7min.
On the first day of the month, sunrise is at 6:18 am and sunset at 8:47 pm. On the last day of May, in Arlee, sunrise is at 5:44 am and sunset at 9:23 pm MDT.

Sunshine

In May, the average sunshine is 9.7h.

UV index

In Arlee, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 4 during May translates into the following guidance:
Put precautions into practice - Protective measures against sun-induced damage are advised. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. 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 are the temperatures in Arlee in May?

In May, the average high-temperature and low-temperature in Arlee are 59°F (15°C) and 34.5°F (1.4°C) respectively.

What is the average humidity in May in Arlee?

In May, the average relative humidity in Arlee, Montana, is 69%.

How much does it rain in Arlee in May?

In May, in Arlee, Montana, the rain falls for 11.6 days. Throughout May, 1.38" (35mm) of precipitation is accumulated.

How much does it snow in Arlee in May?

In Arlee, Montana, during May, snow falls for 5.6 days and regularly aggregates up to 2.76" (70mm) of snow.

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

In May, the average day length in Arlee, Montana, is 15h and 7min.

When is the sunrise / sunset in May in Arlee?

In May, on the first day of the month, sunrise is at 6:18 am and sunset at 8:47 pm. On the last day of the month, in Arlee, sunrise is at 5:44 am and sunset at 9:23 pm MDT.

How many hours of sunshine does Arlee have in May?

The average sunshine duration in May in Arlee, Montana, is 9.7h.

What is the UV index intensity in May in Arlee?

The average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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 May
Arlee, MT

Average temperature in May - Arlee, MT
  • Average high temperature in May: 59°F

The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is December (27°F).

  • Average low temperature in May: 34.5°F

The month with the highest average low temperature is August (47.5°F).
The coldest month (with the lowest average low temperature) is December (14.4°F).

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Average pressure in May
Arlee, MT

Average pressure in May - Arlee, MT
  • Average pressure in May: 29.96"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in May
Arlee, MT

Average wind speed in May - Arlee, MT
  • Average wind speed in May: 4.5mph

The windiest month (with the highest average wind speed) is April (5mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).

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Average humidity in May
Arlee, MT

Average humidity in May - Arlee, MT
  • Average humidity in May: 69%

The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are July and August (51%).

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Average rainfall in May
Arlee, MT

Average rainfall in May - Arlee, MT
  • Average rainfall in May: 1.38"

The wettest month (with the highest rainfall) is April (1.61").
The driest month (with the least rainfall) is July (0.55").

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Average rainfall days in May
Arlee, MT

Average rainfall days in May - Arlee, MT
  • Average rainfall days in May: 11.6 days

The month with the highest number of rainy days is June (12.1 days).
The month with the least rainy days is February (4.5 days).

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Average snowfall in May
Arlee, MT

Average snowfall in May - Arlee, MT
  • Average snowfall in May: 2.76"

The month with the highest snowfall is February (11.77").
The months with the least snowfall are July and August (0").

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Average snowfall days in May
Arlee, MT

Average snowfall days in May - Arlee, MT
  • Average snowfall days in May: 5.6 days

The month with the highest number of snowfall days is March (19.4 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in May / Average sunshine in May - Arlee, MT
  • Average daylight in May: 15h and 1min

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 36min).

  • Average sunshine in May: 9h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

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Average sunshine days in May
Arlee, MT

Average sunshine days in May - Arlee, MT
  • Average sunshine days in May: 15.8 days

The month with the most sunshine days is July (22.5 days).
The month with the least sunshine days is March (9.3 days).

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Average UV index in May
Arlee, MT

Average UV index in May - Arlee, 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, November and December (UV index 1).

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Average cloud cover in May
Arlee, MT

Average cloud cover in May - Arlee, MT
  • Average cloud cover in May: 38

The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 16).

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Average visibility in May
Arlee, MT

Average visibility in May - Arlee, MT
  • Average visibility in May: 6mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, November and December (4mi).

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Arlee, Montana, USA

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