April weather forecast
Phoenix, AZ

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

Weather in April

April, like March, in Phoenix, Arizona, is another warm spring month, with average temperature fluctuating between 83.1°F (28.4°C) and 61.3°F (16.3°C).

Temperature

In Phoenix, the average high-temperature slightly increases, from 76.1°F (24.5°C) in March, to a still warm 83.1°F (28.4°C). In April, in Phoenix, the average low-temperature is 61.3°F (16.3°C).

Humidity

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, in Phoenix, 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 in Phoenix.

Daylight

In April, the average length of the day in Phoenix, Arizona, is 13h.

Sunshine

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

UV index

In April, the average daily maximum UV index in Phoenix is 6. A UV Index reading of 6 to 7 represents a high health hazard from the exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 6 in April transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the average humidity in April in Phoenix?

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

How much does it rain in Phoenix in April?

In Phoenix, 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?

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

What is the average length of the day in April in Phoenix?

In April, the average length of the day in Phoenix, Arizona, is 13h.

How long on average sun shines in April in Phoenix?

The average sunshine in April in Phoenix is 10.8h.

What is the UV index intensity in April in Phoenix?

In April, the average daily maximum UV index in Phoenix is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV rays.

Average temperature in April
Phoenix, AZ

Average temperature in April - Phoenix, AZ
  • Average high temperature in April: 28.4°C

The warmest month (with the highest average high temperature) is July (39.8°C).
The month with the lowest average high temperature is December (17.2°C).

  • Average low temperature in April: 16.3°C

The month with the highest average low temperature is August (29.3°C).
The coldest month (with the lowest average low temperature) is January (8.6°C).

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Average pressure in April
Phoenix, AZ

Average pressure in April - Phoenix, AZ
  • Average pressure in April: 1012mbar

The month with the highest atmospheric pressure is January (1018.9mbar).
The month with the lowest atmospheric pressure is June (1009.5mbar).

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Average wind speed in April
Phoenix, AZ

Average wind speed in April - Phoenix, AZ
  • Average wind speed in April: 10.3km/h

The windiest month (with the highest average wind speed) is April (10.3km/h).
The calmest month (with the lowest average wind speed) is December (7km/h).

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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%).

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Average rainfall in April
Phoenix, AZ

Average rainfall in April - Phoenix, AZ
  • Average rainfall in April: 3mm

The wettest month (with the highest rainfall) is July (19mm).
The driest months (with the least rainfall) are May and June (2mm).

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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).

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Average snowfall in April
Phoenix, AZ

Average snowfall in April - Phoenix, AZ
  • Average snowfall in April: 0mm

The month with the highest snowfall is September (1mm).
Months with the least snowfall are January, February, March, April, May, June, July, August, October, November and December (0mm).

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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).
Months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).

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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

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in April: 10.8h

The month with the most sunshine is June (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6.8h).

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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).

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Average UV index in April
Phoenix, AZ

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

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).

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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).

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Average visibility in April
Phoenix, AZ

Average visibility in April - Phoenix, AZ
  • Average visibility in April: 10km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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