March weather forecast
Alton, ID

Share

Weather in March

The first month of the spring, March, is a cold month in Alton, Idaho, with an average temperature ranging between min 18°F (-7.8°C) and max 34.5°F (1.4°C).

Temperature

With the start of March, the average high-temperature marginally shifts from February's freezing cold 27.3°F (-2.6°C) to a cold 34.5°F (1.4°C). Throughout March, Alton records an average temperature of 18°F (-7.8°C) at night.

Humidity

In March, the average relative humidity is 89%.

Rainfall

In March, the rain falls for 11.5 days. Throughout March, 2.13" (54mm) of precipitation is accumulated. Throughout the year, there are 117.5 rainfall days, and 20.24" (514mm) of precipitation is accumulated.

Snowfall

January through June, September through December are months with snowfall in Alton. In March, it is snowing for 18.3 days. Throughout March, 14.29" (363mm) of snow is accumulated. Throughout the year, there are 116.1 snowfall days, and 91.14" (2315mm) of snow is accumulated.

Daylight

The average length of the day in March in Alton is 11h and 58min.
On the first day of March in Alton, sunrise is at 6:58 am and sunset at 6:15 pm MST. On the last day of the month, sunrise is at 7:07 am and sunset at 7:49 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 March, the average sunshine is 6.3h.

UV index

In March, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: An average UV index of 2 in March transforms into this advice:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is March?

The high-temperature, in March, in Alton, is 34.5°F (1.4°C), while the low-temperature averages to 18°F (-7.8°C).

What is the average humidity in March?

The average relative humidity in March is 89%.

How many days does it rain in March?

In March, the rain falls for 11.5 days. Throughout March, 2.13" (54mm) of precipitation is accumulated.

How much does it snow in March?

In Alton, in March, during 18.3 snowfall days, 14.29" (363mm) of snow is typically accumulated.

How many hours of daylight does Alton have in March?

The average day length in March in Alton is 11h and 58min.

What time are sunrise and sunset in March?

In March, on the first day of the month, sunrise is at 6:58 am and sunset at 6:15 pm MST. On the last day of the month, sunrise is at 7:07 am and sunset at 7:49 pm MDT.

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

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 many hours of sunshine does Alton have in March?

In March, the average sunshine duration is 6.3h.

How high is the UV index in March?

In March, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe 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
Alton, ID

Average temperature in March - Alton, ID
  • Average high temperature in March: 34.5°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is December (25.2°F).

  • Average low temperature in March: 18°F

The month with the highest average low temperature is July (48.9°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).

Average pressure in March
Alton, ID

Average pressure in March - Alton, ID
  • Average pressure in March: 30.06"Hg

The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in March
Alton, ID

Average wind speed in March - Alton, ID
  • Average wind speed in March: 4.8mph

The windiest month (with the highest average wind speed) is June (5.8mph).
The calmest months (with the lowest average wind speed) are January and December (4.2mph).

Average humidity in March
Alton, ID

Average humidity in March - Alton, ID
  • Average humidity in March: 89%

The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is August (42%).

Average rainfall in March
Alton, ID

Average rainfall in March - Alton, ID
  • Average rainfall in March: 2.13"

The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is July (0.63").

Average rainfall days in March
Alton, ID

Average rainfall days in March - Alton, ID
  • Average rainfall days in March: 11.5 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (6 days).

Average snowfall in March
Alton, ID

Average snowfall in March - Alton, ID
  • Average snowfall in March: 14.29"

The month with the highest snowfall is February (18.39").
The months with the least snowfall are July and August (0").

Average snowfall days in March
Alton, ID

Average snowfall days in March - Alton, ID
  • Average snowfall days in March: 18.3 days

The month with the highest number of snowfall days is December (21.6 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in March /
Average sunshine in March
Alton, ID

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

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in March: 6h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in March
Alton, ID

Average sunshine days in March - Alton, ID
  • Average sunshine days in March: 7.8 days

The month with the most sunshine days is July (18.8 days).
The month with the least sunshine days is February (6.8 days).

Average UV index in March
Alton, ID

Average UV index in March - Alton, ID
  • Average UV index in March: 2

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).

Average cloud cover in March
Alton, ID

Average cloud cover in March - Alton, ID
  • Average cloud cover in March: 50

The month with the most cloud cover is February (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 12).

Average visibility in March
Alton, ID

Average visibility in March - Alton, ID
  • Average visibility in March: 4mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (3mi).

Alton, Idaho, USA

Weather forecast for your location

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