April weather forecast
Phoenix, AZ

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

Weather in April

April in Phoenix, Arizona, encapsulates the end of spring, paving the way for the fast-approaching summer. The city experiences a noteworthy jump in temperatures, signaling the start of stark sunny weather. Soaring to 83.1°F (28.4°C), it sets the stage for the high temperatures that define Phoenix's weather. An extraordinary dip in rainfall primes the landscape for the dry weather ahead. The city reveals its dry desert nature with significantly lower humidity levels and scarce rainfall.

Temperature

As Phoenix welcomes April, the average high-temperature sees a modest rise, transitioning from a moderately hot 76.1°F (24.5°C) in March to a still warm 83.1°F (28.4°C). Despite the hot April days, Phoenix's nights see an average temperature plunge to a comfortable 61.3°F (16.3°C).

Humidity

In April, the average relative humidity in Phoenix is 21%.

Rainfall

In April, in Phoenix, the rain falls for 2.2 days. Throughout April, 0.12" (3mm) of precipitation is accumulated. Throughout the year, there are 44.6 rainfall days, and 5.04" (128mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Phoenix, the average length of the day in April is 13h and 2min.
On the first day of April, sunrise is at 6:14 am and sunset at 6:49 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 7:10 pm MST.

Sunshine

In Phoenix, the average sunshine in April is 10.8h.

UV index

In April, the average daily maximum UV index in Phoenix is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 during April translates into the following directions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Jul 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Phoenix in April?

The high-temperature, in April, in Phoenix, records 83.1°F (28.4°C), while the low-temperature is 61.3°F (16.3°C).

What is the average humidity in April?

The average relative humidity in April is 21%.

How much does it rain in Phoenix in April?

In Phoenix, Arizona, during April, the rain falls for 2.2 days and regularly aggregates up to 0.12" (3mm) of precipitation.

When it does not snow?

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

How many hours of daylight does Phoenix have in April?

In April, the average day length is 13h and 2min.

What time are sunrise and sunset in April?

On the first day of April, sunrise is at 6:14 am and sunset at 6:49 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 7:10 pm MST.

How long on average sun shines in April?

The average sunshine duration in April is 10.8h.

What is the UV index intensity in April?

In April, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health 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 April
Phoenix, AZ

Average temperature in April - Phoenix, AZ
  • Average high temperature in April: 83.1°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 April: 61.3°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 April
Phoenix, AZ

Average pressure in April - Phoenix, AZ
  • Average pressure in April: 29.88"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 April
Phoenix, AZ

Average wind speed in April - Phoenix, AZ
  • Average wind speed in April: 6.4mph

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 April
Phoenix, AZ

Average humidity in April - Phoenix, AZ
  • Average humidity in April: 21%

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

Average rainfall in April
Phoenix, AZ

Average rainfall in April - Phoenix, AZ
  • Average rainfall in April: 0.12"

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 April
Phoenix, AZ

Average rainfall days in April - Phoenix, AZ
  • Average rainfall days in April: 2.2 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 April
Phoenix, AZ

Average snowfall in April - Phoenix, AZ
  • Average snowfall in April: 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 April
Phoenix, AZ

Average snowfall days in April - Phoenix, AZ
  • Average snowfall days in April: 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 April /
Average sunshine in April
Phoenix, AZ

Average daylight in April / Average sunshine in April - Phoenix, AZ
  • Average daylight in April: 13h 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 April: 10h and 5min

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 April
Phoenix, AZ

Average sunshine days in April - Phoenix, AZ
  • Average sunshine days in April: 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 April
Phoenix, AZ

Average UV index in April - Phoenix, AZ
  • Average UV index in April: 6

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 April
Phoenix, AZ

Average cloud cover in April - Phoenix, AZ
  • Average cloud cover in April: 11

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 April
Phoenix, AZ

Average visibility in April - Phoenix, AZ
  • Average visibility in April: 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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