May weather forecast
Big Timber, MT

Weather in May

May, the last month of the spring in Big Timber, is a mild month, with an average temperature ranging between min 37.4°F (3°C) and max 56.8°F (13.8°C).

Temperature

In Big Timber, the average high-temperature in May increases from a chilly 46.6°F (8.1°C) in April to a mild 56.8°F (13.8°C). In May, the average low-temperature is 37.4°F (3°C).

Humidity

In May, the average relative humidity 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 in Big Timber. During 1.9 snowfall days, in May, Big Timber aggregates 1.3" (33mm) of snow. In Big Timber, Montana, during the entire year, snow falls for 67.6 days and aggregates up to 38.19" (970mm) of snow.

Daylight

In Big Timber, the average length of the day in May is 14h and 58min.
On the first day of May in Big Timber, sunrise is at 6:06 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 9:01 pm MDT.

Sunshine

In Big Timber, the average sunshine in May is 9.9h.

UV index

In Big Timber, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily maximum UV index of 4 in May interpret into the following advice:
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 temperature in May in Big Timber?

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

What is the average humidity in May in Big Timber?

In Big Timber, the average relative humidity in May is 67%.

What is the wettest month in Big Timber?

May is the month with the most rainfall. Rain falls for 19.8 days and accumulates 3.15" (80mm) of precipitation.

How many days does it rain in May in Big Timber?

In Big Timber, Montana, in May, it is raining for 19.8 days, with typically 3.15" (80mm) of accumulated precipitation.

What is the last month it snows in Big Timber?

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

How many hours of daylight does Big Timber have in May?

In Big Timber, the average day length in May is 14h and 58min.

When is the sunrise / sunset in May in Big Timber?

In May, on the first day of the month, sunrise is at 6:06 am and sunset at 8:27 pm. On the last day of the month, in Big Timber, Montana, sunrise is at 5:33 am and sunset at 9:01 pm MDT.

How many hours of sunshine does Big Timber have in May?

The average sunshine duration in May in Big Timber is 9.9h.

What is the UV index reading in May in Big Timber?

The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Big Timber, MT

Average temperature in May - Big Timber, 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
Big Timber, MT

Average pressure in May - Big Timber, 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
Big Timber, MT

Average wind speed in May - Big Timber, 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
Big Timber, MT

Average humidity in May - Big Timber, 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
Big Timber, MT

Average rainfall in May - Big Timber, 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
Big Timber, MT

Average rainfall days in May - Big Timber, 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
Big Timber, MT

Average snowfall in May - Big Timber, 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
Big Timber, MT

Average snowfall days in May - Big Timber, 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
Big Timber, MT

Average daylight in May / Average sunshine in May - Big Timber, MT
  • Average daylight in May: 14h and 58min

The month with the longest days is June (Average daylight: 15h and 40min).
The month with the shortest days is December (Average daylight: 8h and 44min).

  • Average sunshine in May: 9h and 54min

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
Big Timber, MT

Average sunshine days in May - Big Timber, 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
Big Timber, MT

Average UV index in May - Big Timber, 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
Big Timber, MT

Average cloud cover in May - Big Timber, 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
Big Timber, MT

Average visibility in May - Big Timber, 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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