March weather forecast
Boulder, WY

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Weather in March

March brings a noticeable transformation in Boulder's weather with an uplift from the harsh winter. A rise in both high and low temperature averages is the first sign of impending spring. This month's predominant characteristic is a drop in snowfall to 7.05" (179mm) compared to February. There is also a slight increase in daylight hours, a welcome sign for residents longing for longer days. However, the snow on the ground still signals the drying out phase for Boulder's landscape.

Temperature

In Boulder, the onset of March comes with a modest high-temperature shift, transitioning from February's freezing cold 26.6°F (-3°C) to a cold 34.9°F (1.6°C). An average minimum temperature of 17.8°F (-7.9°C) marks the month of March.

Humidity

The average relative humidity in March is 79%.

Rainfall

In Boulder, in March, during 9.6 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. Throughout the year, in Boulder, Wyoming, there are 102.6 rainfall days, and 10.75" (273mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Boulder are January through June, September through December. In Boulder, Wyoming, in March, snow falls for 15.7 days, with typically accumulated 7.05" (179mm) of snow. In Boulder, during the entire year, snow falls for 86.8 days and aggregates up to 41.77" (1061mm) of snow.

Daylight

The average length of the day in March in Boulder is 11h and 58min.
On the first day of the month, sunrise is at 6:53 am and sunset at 6:09 pm MST. On the last day of March, in Boulder, Wyoming, sunrise is at 7:01 am and sunset at 7:44 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 8.1h.

UV index

The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: In March, a daily maximum UV index of 2 leads to the following instructions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Around midday, solar radiation is most harmful; hence, exposure should be limited. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Boulder in March?

March temperatures in Boulder, Wyoming, vary between a high-temperature of 34.9°F (1.6°C) and a low-temperature of 17.8°F (-7.9°C).

What is the average humidity in March in Boulder?

In March, the average relative humidity in Boulder is 79%.

How much does it rain in Boulder in March?

In Boulder, Wyoming, during March, the rain falls for 9.6 days and regularly aggregates up to 0.98" (25mm) of precipitation.

How many days does it snow in March in Boulder?

In Boulder, Wyoming, during March, snow falls for 15.7 days and regularly aggregates up to 7.05" (179mm) of snow.

What is the average length of the day in March in Boulder?

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

When are sunrise and sunset in March in Boulder?

In March, on the first day of the month, sunrise is at 6:53 am and sunset at 6:09 pm MST. On the last day of the month, in Boulder, sunrise is at 7:01 am and sunset at 7:44 pm MDT.

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

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 Boulder?

In Boulder, Wyoming, the average sunshine duration in March is 8.1h.

When is the lowest UV index in Boulder?

The months with the lowest UV index in Boulder, Wyoming, are January through April, October through December, with an average maximum UV index of 2.

How high is the UV index in March in Boulder?

The average daily maximum UV index in March in Boulder is 2. A UV Index value of 2, and less, symbolizes a low health threat 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
Boulder, WY

Average temperature in March - Boulder, WY
  • Average high temperature in March: 34.9°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is December (23.9°F).

  • Average low temperature in March: 17.8°F

The month with the highest average low temperature is July (55.2°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).

Average pressure in March
Boulder, WY

Average pressure in March - Boulder, WY
  • Average pressure in March: 30.06"Hg

The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in March
Boulder, WY

Average wind speed in March - Boulder, WY
  • Average wind speed in March: 6.5mph

The windiest month (with the highest average wind speed) is June (8.1mph).
The calmest month (with the lowest average wind speed) is December (5.8mph).

Average humidity in March
Boulder, WY

Average humidity in March - Boulder, WY
  • Average humidity in March: 79%

The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is August (34%).

Average rainfall in March
Boulder, WY

Average rainfall in March - Boulder, WY
  • Average rainfall in March: 0.98"

The wettest month (with the highest rainfall) is May (1.73").
The driest month (with the least rainfall) is August (0.51").

Average rainfall days in March
Boulder, WY

Average rainfall days in March - Boulder, WY
  • Average rainfall days in March: 9.6 days

The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (5.5 days).

Average snowfall in March
Boulder, WY

Average snowfall in March - Boulder, WY
  • Average snowfall in March: 7.05"

The month with the highest snowfall is February (7.32").
The months with the least snowfall are July and August (0").

Average snowfall days in March
Boulder, WY

Average snowfall days in March - Boulder, WY
  • Average snowfall days in March: 15.7 days

The month with the highest number of snowfall days is March (15.7 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in March /
Average sunshine in March
Boulder, WY

Average daylight in March / Average sunshine in March - Boulder, WY
  • Average daylight in March: 12h and 0min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in March: 8h and 1min

The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 18min).

Average sunshine days in March
Boulder, WY

Average sunshine days in March - Boulder, WY
  • Average sunshine days in March: 12.4 days

The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is May (9.7 days).

Average UV index in March
Boulder, WY

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

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).

Average cloud cover in March
Boulder, WY

Average cloud cover in March - Boulder, WY
  • Average cloud cover in March: 35

The month with the most cloud cover is February (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 11).

Average visibility in March
Boulder, WY

Average visibility in March - Boulder, WY
  • Average visibility in March: 5mi

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

Boulder, Wyoming, USA

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