Boulder
Montana, USA
Long-term weather forecast
Long-term weather forecast

March weather forecast and climate
Boulder, MT

March, the first month of the spring, in Boulder, is a wintry month, with average temperature varying between 32°F (0°C) and 38.7°F (3.7°C).

Temperature

In March, the average high-temperature increases, from a freezing cold 29.3°F (-1.5°C) in February, to a wintry 38.7°F (3.7°C). In Boulder, Montana, the average low-temperature is 32°F (0°C).

Humidity

The average relative humidity in March is 81%.

Rainfall

In Boulder, it is raining for 11.9 days, with typically 1.46" (37mm) of accumulated precipitation. In Boulder, during the entire year, the rain falls for 133.7 days and collects up to 16.38" (416mm) of precipitation.

Snowfall

Months with snowfall in Boulder, Montana, are January through June, September through December. In Boulder, during 16.9 snowfall days, 9.53" (242mm) of snow is typically accumulated. Throughout the year, in Boulder, there are 105.8 snowfall days, and 55.12" (1400mm) of snow is accumulated.

Daylight

The average length of the day in Boulder is 12h.

Sunshine

The average sunshine in Boulder, Montana, is 7.6h.

UV index

In March, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to the UV radiation for the ordinary person.
Note: In March, the average maximum UV index of 2 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in March in Boulder?

In Boulder, in March, the average high-temperature is 38.7°F (3.7°C), and the average low-temperature is 32°F (0°C).

What is the average humidity in March in Boulder?

The average relative humidity in March in Boulder is 81%.

How much does it rain in Boulder in March?

In Boulder, in March, during 11.9 rainfall days, 1.46" (37mm) of precipitation is typically accumulated.

How many days does it snow in March in Boulder?

In Boulder, in March, snow falls for 16.9 days, with typically accumulated 9.53" (242mm) of snow.

How many hours of daylight does Boulder have in March?

The average length of the day in March is 12h.

How long on average sun shines in March in Boulder?

In March, the average sunshine is 7.6h.

How high is the UV index in March in Boulder?

The average daily maximum UV index in March in Boulder, Montana, is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in March - Boulder, MT
  • Average high temperature in March: 38.7°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is December (27°F).

  • Average low temperature in March: 0°F

Months with the highest average low temperature are January, February, March, April, May, June, July, August, September, October, November and December (0°F).
Coldest months (with the lowest average low temperature) are January, February, March, April, May, June, July, August, September, October, November and December (0°F).

Average humidity in March - Boulder, MT
  • Average humidity in March: 81%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (46%).

Average rainfall in March - Boulder, MT
  • Average rainfall in March: 1.46"

The wettest month (with the highest rainfall) is June (2.68").
The driest month (with the lowest rainfall) is December (0.79").

Average rainfall days in March - Boulder, MT
  • Average rainfall days in March: 11.9 days

The month with the highest number of rainy days is May (18.2 days).
The month with the lowest number of rainy days is November (7.5 days).

Average snowfall in March - Boulder, MT
  • Average snowfall in March: 9.53"

The month with the highest snowfall is February (9.72").
Months with the lowest snowfall are July and August (0").

Average snowfall days in March - Boulder, MT
  • Average snowfall days in March: 16.9 days

The month with the highest number of snowfall days is February (18 days).
Months with the lowest number of snowfall days are July and August (0 days).

Average daylight in March / Average sunshine in March - Boulder, MT
  • Average daylight in March: 12h

The month with the longest days is June (Average daylight: 15.7h).
The month with shortest days is December (Average daylight: 8.7h).

  • Average sunshine in March: 7.6h

The month with most sunshine is July (Average sunshine: 11.7h).
Months with least sunshine are January and December (Average sunshine: 5.6).

Average UV index in March - Boulder, MT
  • Average UV index in March: 2

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).