May weather forecast
La Salle, MT

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Weather in May

The last month of the spring, May, is a moderate month in La Salle, Montana, with an average temperature varying between 35.6°F (2°C) and 59.5°F (15.3°C).

Temperature

La Salle's transition into May sees a rise in the average high-temperature, advancing from a chilly 46.8°F (8.2°C) in April to a mild 59.5°F (15.3°C). La Salle's average nighttime temperatures present a clear contrast to its daytime highs, measured at a wintry 35.6°F (2°C) in May.

Humidity

In La Salle, the average relative humidity in May is 68%.

Rainfall

In La Salle, Montana, in May, during 15.4 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. In La Salle, during the entire year, the rain falls for 142.8 days and collects up to 17.36" (441mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. May is the last month it regularly snows in La Salle. During 0.9 snowfall days, in May, La Salle aggregates 0.71" (18mm) of snow. In La Salle, during the entire year, snow falls for 104.7 days and aggregates up to 51.34" (1304mm) of snow.

Daylight

In La Salle, the average length of the day in May is 15h and 14min.
On the first day of May in La Salle, Montana, sunrise is at 6:16 am and sunset at 8:51 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 9:29 pm MDT.

Sunshine

In La Salle, the average sunshine in May is 10.4h.

UV index

In La Salle, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In May, a regular UV index of 4 translates into these guidelines:
Act with care - The need to guard against sun damage is communicated. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
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Frequently asked questions

What are the temperatures in La Salle in May?

In May, in La Salle, the average high-temperature is 59.5°F (15.3°C), and the average low-temperature is 35.6°F (2°C).

What is the average humidity in May in La Salle?

In May, the average relative humidity in La Salle, Montana, is 68%.

How much does it rain in La Salle in May?

In La Salle, Montana, in May, it is raining for 15.4 days, with typically 1.61" (41mm) of accumulated precipitation.

What is the last month it snows in La Salle?

May is the last month it regularly snows in La Salle, Montana. During 0.9 snowfall days, in May, La Salle aggregates 0.71" (18mm) of snow.

How many hours of daylight does La Salle have in May?

The average day length in May is 15h and 14min.

What time are sunrise and sunset in May in La Salle?

On the first day of May in La Salle, Montana, sunrise is at 6:16 am and sunset at 8:51 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 9:29 pm MDT.

How many hours of sunshine does La Salle have in May?

In May, the average sunshine duration in La Salle, Montana, is 10.4h.

What is the UV index intensity in May in La Salle?

In La Salle, Montana, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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 May
La Salle, MT

Average temperature in May - La Salle, MT
  • Average high temperature in May: 59.5°F

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is December (25.9°F).

  • Average low temperature in May: 35.6°F

The month with the highest average low temperature is August (46.4°F).
The coldest month (with the lowest average low temperature) is February (14.4°F).

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Average pressure in May
La Salle, MT

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in May
La Salle, MT

Average wind speed in May - La Salle, MT
  • Average wind speed in May: 4.4mph

The windiest month (with the highest average wind speed) is April (4.7mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

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Average humidity in May
La Salle, MT

Average humidity in May - La Salle, MT
  • Average humidity in May: 68%

The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (55%).

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Average rainfall in May
La Salle, MT

Average rainfall in May - La Salle, MT
  • Average rainfall in May: 1.61"

The wettest month (with the highest rainfall) is June (2.05").
The driest month (with the least rainfall) is August (0.55").

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Average rainfall days in May
La Salle, MT

Average rainfall days in May - La Salle, MT
  • Average rainfall days in May: 15.4 days

The month with the highest number of rainy days is April (17.9 days).
The month with the least rainy days is August (6.6 days).

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Average snowfall in May
La Salle, MT

Average snowfall in May - La Salle, MT
  • Average snowfall in May: 0.71"

The month with the highest snowfall is January (11.3").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in May
La Salle, MT

Average snowfall days in May - La Salle, MT
  • Average snowfall days in May: 0.9 days

The month with the highest number of snowfall days is December (21.5 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
La Salle, MT

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

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in May: 10h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in May
La Salle, MT

Average sunshine days in May - La Salle, MT
  • Average sunshine days in May: 12.9 days

The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is February (6.8 days).

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Average UV index in May
La Salle, MT

Average UV index in May - La Salle, MT
  • Average UV index in May: 4

The month with the highest UV index is July (UV index 5).
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
La Salle, MT

Average cloud cover in May - La Salle, MT
  • Average cloud cover in May: 33

The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 15).

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Average visibility in May
La Salle, MT

Average visibility in May - La Salle, MT
  • Average visibility in May: 6mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).

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La Salle, Montana, USA

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