Phoenix
Arizona, USA
Long-term weather forecast
Long-term weather forecast

April weather forecast and climate
Phoenix, AZ

The city of Phoenix, Arizona, at dusk
The city of Phoenix, Arizona, at dusk
April, the same as March, is a moderately hot spring month in Phoenix, Arizona, with average temperature fluctuating between 61.3°F (16.3°C) and 83.1°F (28.4°C).

Temperature

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

Humidity

The average relative humidity in Phoenix is 21%.

Rainfall

In Phoenix, during April, the rain falls for 2.2 days and regularly aggregates up to 0.12" (3mm) of precipitation. In Phoenix, during the entire year, the rain falls for 44.6 days and collects up to 5.04" (128mm) of precipitation.

Snowfall

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

Daylight

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

Sunshine

In April, the average sunshine is 10.8h.

UV index

The average daily maximum UV index in Phoenix is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV radiation for the ordinary person.
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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in April in Phoenix?

In April, the average high-temperature is 83.1°F (28.4°C), and the average low-temperature is 61.3°F (16.3°C).

What is the average humidity in April in Phoenix?

In Phoenix, 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?

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

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

The average length of the day in April is 13h.

How many hours of sunshine does Phoenix have in April?

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

How high is the UV index in April in Phoenix?

In April, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to the UV radiation.
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).

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: 3mm

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

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 lowest number of rainy days is June (0.8 days).

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

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

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 lowest number of 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: 13h

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

  • Average sunshine in April: 10.8h

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

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).