Weather in Phoenix in May
May in Phoenix is warm with average temperatures around 25.8°C (78.4°F). Light rainfall with only 6mm expected.
Data Note: Temperature values are 2001–2020 satellite/reanalysis grid averages from NASA POWER and may differ from airport station normals by a few degrees.
Temperature
High
34.3°C
93.7°F
Low
17.2°C
63.0°F
Precipitation
6 mm
0.2 inches
~1 rainy days
Conditions
Humidity
22%
Comparison to Adjacent Months
May is 5.1°C warmer than April.
May is 6.0°C cooler than June.