March weather forecast
Big Sky, MT

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Vast fields and planted forests near the scenic mountainous region in Big Sky, Montana
Vast fields and planted forests near the scenic mountainous region in Big Sky, Montana

Weather in March

March inaugurates the shift towards spring in Big Sky, marked by increments in temperature and daylight hours. It struggles to shake off winter completely, with average highs reaching only to 32.9°F (0.5°C) and snow still appearing familiarly. Nonetheless, March's weather paints the perfect backdrop for late-winter sports or early spring hiking. The diversity in weather conditions offers a unique blend of experiences, from soaking in the winter chills to enjoying the optimistic glimpses of spring.

Temperature

In March, the meteorological conditions in Big Sky subtly change with the average high-temperature edging from a subzero cold 25.2°F (-3.8°C) in February to an icy 32.9°F (0.5°C). Big Sky, in March, observes a steady average low-temperature of 17.6°F (-8°C).

Humidity

The average relative humidity in March is 88%.

Rainfall

In Big Sky, in March, it is raining for 8 days, with typically 1.97" (50mm) of accumulated precipitation. Throughout the year, there are 116.1 rainfall days, and 23.5" (597mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through December. In Big Sky, in March, during 21 snowfall days, 15.63" (397mm) of snow is typically accumulated. In Big Sky, during the entire year, snow falls for 151.6 days and aggregates up to 124.06" (3151mm) of snow.

Daylight

The average length of the day in March is 11h and 58min.
On the first day of March, sunrise is at 7:01 am and sunset at 6:13 pm MST. On the last day of the month, sunrise is at 7:05 am and sunset at 7:52 pm MDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from MDT to MST.

Sunshine

The average sunshine in March is 6.6h.

UV index

In Big Sky, Montana, the average daily maximum UV index in March is 2. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily high UV index of 2 in March leads to these guidelines:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Updated: Jul 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is March in Big Sky?

The high-temperature during March is 32.9°F (0.5°C) and the low-temperature is 17.6°F (-8°C).

What is the average humidity in March?

The average relative humidity in March is 88%.

How many days does it rain in March?

In Big Sky, during March, the rain falls for 8 days and regularly aggregates up to 1.97" (50mm) of precipitation.

How much does it snow in Big Sky in March?

In March, it is snowing for 21 days. Throughout March, 15.63" (397mm) of snow is accumulated.

How many hours of daylight does Big Sky have in March?

In March, the average day length is 11h and 58min.

When is the sunrise / sunset in March?

In March, on the first day of the month, sunrise is at 7:01 am and sunset at 6:13 pm MST. On the last day of the month, sunrise is at 7:05 am and sunset at 7:52 pm MDT.

When does Daylight Saving Time (DST) start in March?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. DST ends Sunday, November 3. 2024, at 2:00 am.

How long on average sun shines in March?

In Big Sky, the average sunshine duration in March is 6.6h.

How high is the UV index in March?

In March, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal 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 March
Big Sky, MT

Average temperature in March - Big Sky, MT
  • Average high temperature in March: 32.9°F

The warmest month (with the highest average high temperature) is July (74.8°F).
The month with the lowest average high temperature is December (22.5°F).

  • Average low temperature in March: 17.6°F

The month with the highest average low temperature is August (45.1°F).
The coldest month (with the lowest average low temperature) is December (7.9°F).

Average pressure in March
Big Sky, MT

Average pressure in March - Big Sky, MT
  • Average pressure in March: 30.04"Hg

The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in March
Big Sky, MT

Average wind speed in March - Big Sky, MT
  • Average wind speed in March: 6.3mph

The windiest month (with the highest average wind speed) is January (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in March
Big Sky, MT

Average humidity in March - Big Sky, MT
  • Average humidity in March: 88%

The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is August (51%).

Average rainfall in March
Big Sky, MT

Average rainfall in March - Big Sky, MT
  • Average rainfall in March: 1.97"

The wettest months (with the highest rainfall) are April and May (2.91").
The driest month (with the least rainfall) is July (1.18").

Average rainfall days in March
Big Sky, MT

Average rainfall days in March - Big Sky, MT
  • Average rainfall days in March: 8 days

The month with the highest number of rainy days is June (16.6 days).
The month with the least rainy days is February (4.3 days).

Average snowfall in March
Big Sky, MT

Average snowfall in March - Big Sky, MT
  • Average snowfall in March: 15.63"

The month with the highest snowfall is April (19.88").
The month with the least snowfall is August (0.08").

Average snowfall days in March
Big Sky, MT

Average snowfall days in March - Big Sky, MT
  • Average snowfall days in March: 21 days

The month with the highest number of snowfall days is March (21 days).
The month with the least snowfall days is August (0.3 days).

Average daylight in March /
Average sunshine in March
Big Sky, MT

Average daylight in March / Average sunshine in March - Big Sky, MT
  • Average daylight in March: 12h and 0min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in March: 6h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in March
Big Sky, MT

Average sunshine days in March - Big Sky, MT
  • Average sunshine days in March: 8.4 days

The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is May (5.7 days).

Average UV index in March
Big Sky, MT

Average UV index in March - Big Sky, MT
  • Average UV index in March: 2

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).

Average cloud cover in March
Big Sky, MT

Average cloud cover in March - Big Sky, MT
  • Average cloud cover in March: 55

The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 17).

Average visibility in March
Big Sky, MT

Average visibility in March - Big Sky, MT
  • Average visibility in March: 4mi

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

Big Sky, Montana, USA

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