March weather forecast
Phoenix, AZ

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The city of Phoenix, Arizona at dusk
The city of Phoenix, Arizona at dusk

Weather in March

March witnesses a continued gradual increase in temperature as Phoenix moves further into spring. This month exposes Phoenix's desert characteristics with climbing temperatures and falling humidity levels. The city welcomes the warmer 76.1°F (24.5°C) average high temperature, providing bounteous warmth without the intense heat of summer. March offers ample sunshine and decreased rain, making it a great time for outdoor enthusiasts. Continuing the warming trend, the city anticipates the arrival of the impending summer season.

Temperature

As March arrives in Phoenix, a slight rise in the average high-temperature is observed, moving from an enjoyable 67.6°F (19.8°C) in February to a moderately hot 76.1°F (24.5°C). Throughout the nights in March, Phoenix experiences an average low-temperature of 55.9°F (13.3°C).

Humidity

The average relative humidity in March is 29%.

Rainfall

In March, the rain falls for 3.5 days. Throughout March, 0.43" (11mm) of precipitation is accumulated. Throughout the year, in Phoenix, there are 44.6 rainfall days, and 5.04" (128mm) of precipitation is accumulated.

Snowfall

In Phoenix, snow does not fall in January through August, October through December.

Daylight

In Phoenix, the average length of the day in March is 12h and 0min.
On the first day of the month, sunrise is at 6:55 am and sunset at 6:25 pm. On the last day of March, sunrise is at 6:15 am and sunset at 6:48 pm MST.

Sunshine

In Phoenix, the average sunshine in March is 9.2h.

UV index

The average daily maximum UV index in March is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index, 5 during March, leads to the following recommendations:
Undertake protective steps - Preventing sun damage is advised. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Updated: Jul 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Phoenix in March?

In Phoenix, 76.1°F (24.5°C) is the average high-temperature and 55.9°F (13.3°C) is the average low-temperature during March.

What is the average humidity in March?

In Phoenix, the average relative humidity in March is 29%.

How much does it rain in March?

In Phoenix, in March, during 3.5 rainfall days, 0.43" (11mm) of precipitation is typically accumulated.

When it does not snow in Phoenix?

January through August, October through December are months without snowfall.

How many hours of daylight does Phoenix have in March?

In Phoenix, the average day length in March is 12h and 0min.

When is the sunrise / sunset in March?

On the first day of March, sunrise is at 6:55 am and sunset at 6:25 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 6:48 pm MST.

How many hours of sunshine does Phoenix have in March?

In Phoenix, the average sunshine duration in March is 9.2h.

What is the UV index reading in March?

The average daily maximum UV index in March is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in March
Phoenix, AZ

Average temperature in March - Phoenix, AZ
  • Average high temperature in March: 76.1°F

The warmest month (with the highest average high temperature) is July (103.6°F).
The month with the lowest average high temperature is December (63°F).

  • Average low temperature in March: 55.9°F

The month with the highest average low temperature is August (84.7°F).
The coldest month (with the lowest average low temperature) is January (47.5°F).

Average pressure in March
Phoenix, AZ

Average pressure in March - Phoenix, AZ
  • Average pressure in March: 29.97"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.81"Hg).

Average wind speed in March
Phoenix, AZ

Average wind speed in March - Phoenix, AZ
  • Average wind speed in March: 5.3mph

The windiest month (with the highest average wind speed) is April (6.4mph).
The calmest month (with the lowest average wind speed) is December (4.3mph).

Average humidity in March
Phoenix, AZ

Average humidity in March - Phoenix, AZ
  • Average humidity in March: 29%

The month with the highest relative humidity is December (43%).
The month with the lowest relative humidity is June (16%).

Average rainfall in March
Phoenix, AZ

Average rainfall in March - Phoenix, AZ
  • Average rainfall in March: 0.43"

The wettest month (with the highest rainfall) is July (0.75").
The driest months (with the least rainfall) are May and June (0.08").

Average rainfall days in March
Phoenix, AZ

Average rainfall days in March - Phoenix, AZ
  • Average rainfall days in March: 3.5 days

The month with the highest number of rainy days is July (7.8 days).
The month with the least rainy days is June (0.8 days).

Average snowfall in March
Phoenix, AZ

Average snowfall in March - Phoenix, AZ
  • Average snowfall in March: 0"

The month with the highest snowfall is September (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, October, November and December (0").

Average snowfall days in March
Phoenix, AZ

Average snowfall days in March - Phoenix, AZ
  • Average snowfall days in March: 0 days

The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).

Average daylight in March /
Average sunshine in March
Phoenix, AZ

Average daylight in March / Average sunshine in March - Phoenix, AZ
  • Average daylight in March: 12h and 0min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in March: 9h and 1min

The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).

Average sunshine days in March
Phoenix, AZ

Average sunshine days in March - Phoenix, AZ
  • Average sunshine days in March: 28.3 days

The month with the most sunshine days is May (29.2 days).
The month with the least sunshine days is July (21.1 days).

Average UV index in March
Phoenix, AZ

Average UV index in March - Phoenix, AZ
  • Average UV index in March: 5

The months with the highest UV index are May, June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in March
Phoenix, AZ

Average cloud cover in March - Phoenix, AZ
  • Average cloud cover in March: 15

The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 5).

Average visibility in March
Phoenix, AZ

Average visibility in March - Phoenix, AZ
  • Average visibility in March: 6mi

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

Phoenix, Arizona, USA

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