March weather forecast
Sun Valley, ID

Share
The iconic Sun Valley, Idaho, in a stunning hilly landscape on either side located within the famous White Cloud Wilderness
The iconic Sun Valley, Idaho, in a stunning hilly landscape on either side located within the famous White Cloud Wilderness

Weather in March

March signals the start of warmer weather in Sun Valley but still retaining the winter feel. A marked distinction from February is seen in the daily highs, now reaching 32.2°F (0.1°C), with lows at 16.9°F (-8.4°C). Meanwhile, snowfall decreases to 12.56" (319mm), and the lengthening daylight hours hint at the impending spring. Despite snow still dominating the landscape, early signs of the season change reveal themselves in blooming flora. Still, March's weather stands as a transitioning period offering the last bits of the snowy charm before spring takes over fully.

Temperature

The advent of March in Sun Valley observes an average high-temperature of a cold 32.2°F (0.1°C), nearly identical to February's 27°F (-2.8°C). An average nighttime temperature of 16.9°F (-8.4°C) is observed in Sun Valley, Idaho, during March.

Humidity

In Sun Valley, the average relative humidity in March is 85%.

Rainfall

The month with the most rainfall in Sun Valley is March, when the rain falls for 11.4 days and typically aggregates up to 2.01" (51mm) of precipitation.

Snowfall

Months with snowfall are January through June, September through December. In Sun Valley, Idaho, in March, snow falls for 16 days, with typically accumulated 12.56" (319mm) of snow. Throughout the year, in Sun Valley, there are 88.2 snowfall days, and 69.45" (1764mm) of snow is accumulated.

Daylight

In March, the average length of the day is 11h and 58min.
On the first day of March in Sun Valley, Idaho, sunrise is at 7:12 am and sunset at 6:26 pm MST. On the last day of the month, sunrise is at 7:19 am and sunset at 8:03 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

In Sun Valley, the average sunshine in March is 7h.

UV index

The average daily maximum UV index in March is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: An average UV index of 2 in March transforms into this advice:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is March in Sun Valley?

In Sun Valley, in March, the average high-temperature is 32.2°F (0.1°C), and the average low-temperature is 16.9°F (-8.4°C).

What is the average humidity in March in Sun Valley?

In Sun Valley, Idaho, the average relative humidity in March is 85%.

What is the rainiest month in Sun Valley?

March is the month with the most rainfall in Sun Valley. Rain falls for 11.4 days and accumulates 2.01" (51mm) of precipitation.

How many days does it rain in March in Sun Valley?

In Sun Valley, Idaho, in March, it is raining for 11.4 days, with typically 2.01" (51mm) of accumulated precipitation.

How much does it snow in Sun Valley in March?

In March, in Sun Valley, it is snowing for 16 days. Throughout March, 12.56" (319mm) of snow is accumulated.

How many hours of daylight does Sun Valley have in March?

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

When are sunrise and sunset in March in Sun Valley?

In March, on the first day of the month, sunrise is at 7:12 am and sunset at 6:26 pm MST. On the last day of the month, in Sun Valley, sunrise is at 7:19 am and sunset at 8:03 pm MDT.

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

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Sun Valley, 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 Sun Valley?

The average sunshine duration in March in Sun Valley, Idaho, is 7h.

What is the UV index intensity in March in Sun Valley?

In Sun Valley, Idaho, the average daily maximum UV index in March is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to Sun's UV rays.
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
Sun Valley, ID

Average temperature in March - Sun Valley, ID
  • Average high temperature in March: 32.2°F

The warmest month (with the highest average high temperature) is July (74.1°F).
The month with the lowest average high temperature is December (25°F).

  • Average low temperature in March: 16.9°F

The months with the highest average low temperature are July and August (50.5°F).
The coldest month (with the lowest average low temperature) is January (8.4°F).

Average pressure in March
Sun Valley, ID

Average pressure in March - Sun Valley, ID
  • 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 (29.89"Hg).

Average wind speed in March
Sun Valley, ID

Average wind speed in March - Sun Valley, ID
  • Average wind speed in March: 5.5mph

The windiest month (with the highest average wind speed) is July (6.3mph).
The calmest month (with the lowest average wind speed) is January (4.5mph).

Average humidity in March
Sun Valley, ID

Average humidity in March - Sun Valley, ID
  • Average humidity in March: 85%

The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is August (37%).

Average rainfall in March
Sun Valley, ID

Average rainfall in March - Sun Valley, ID
  • Average rainfall in March: 2.01"

The wettest month (with the highest rainfall) is March (2.01").
The driest month (with the least rainfall) is July (0.43").

Average rainfall days in March
Sun Valley, ID

Average rainfall days in March - Sun Valley, ID
  • Average rainfall days in March: 11.4 days

The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is July (5.9 days).

Average snowfall in March
Sun Valley, ID

Average snowfall in March - Sun Valley, ID
  • Average snowfall in March: 12.56"

The month with the highest snowfall is February (15").
The months with the least snowfall are July and August (0").

Average snowfall days in March
Sun Valley, ID

Average snowfall days in March - Sun Valley, ID
  • Average snowfall days in March: 16 days

The month with the highest number of snowfall days is March (16 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in March /
Average sunshine in March
Sun Valley, ID

Average daylight in March / Average sunshine in March - Sun Valley, ID
  • Average daylight in March: 12h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in March: 7h and 0min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).

Average sunshine days in March
Sun Valley, ID

Average sunshine days in March - Sun Valley, ID
  • Average sunshine days in March: 11.3 days

The month with the most sunshine days is July (20.8 days).
The month with the least sunshine days is April (11.1 days).

Average UV index in March
Sun Valley, ID

Average UV index in March - Sun Valley, ID
  • Average UV index in March: 2

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

Average cloud cover in March
Sun Valley, ID

Average cloud cover in March - Sun Valley, ID
  • Average cloud cover in March: 43

The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 10).

Average visibility in March
Sun Valley, ID

Average visibility in March - Sun Valley, ID
  • 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, February and December (4mi).

Sun Valley, Idaho, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location