Climate averages 1991–2020
Phoenix weather
in April.
A hot, very dry month: the 7th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a hot month in Phoenix: daytime highs average 29.1°C and nights cool to about 13.4°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 8.0 mm of rain on roughly 1 day, which makes April a very dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 59 min on an average April day.
The nearest other city in this atlas is Glendale (Arizona), United States (14 km away). In April its highs average 29.0°C, about as warm as Phoenix, with 6.9 mm of rain.
Among the 498 cities listed in the United States, Phoenix ranks joint 9th of 498 for the warmest April highs and joint 16th of 498 for the driest April (rainfall, lowest first). The mean April high of those 498 cities is 19.4°C; Phoenix is 9.8°C warmer than that mean.
From April to May, average highs rise by 5.0°C to 34.2°C, and monthly rainfall falls from 8.0 mm to 4.1 mm.
The annual picture
April in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Phoenix climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 18.6°C4.6°C | 4.6°C | 32 | 3.7 | 10.210 h |
| February | 20.5°C6.3°C | 6.3°C | 38 | 4.1 | 11.011 h |
| March | 24.7°C9.3°C | 9.3°C | 26 | 2.8 | 12.012 h |
| April, selected | 29.1°C13.4°C | 13.4°C | 8.0 | 1.3 | 13.013 h |
| May | 34.2°C18.8°C | 18.8°C | 4.1 | 0.6 | 13.914 h |
| June | 39.7°C24.1°C | 24.1°C | 1.8 | 0.4 | 14.314 h |
| July | 40.6°C27.9°C | 27.9°C | 19 | 3.5 | 14.114 h |
| August | 39.6°C27.5°C | 27.5°C | 29 | 4.4 | 13.413 h |
| September | 36.9°C23.4°C | 23.4°C | 24 | 3.1 | 12.412 h |
| October | 30.8°C16.1°C | 16.1°C | 20 | 2.2 | 11.411 h |
| November | 23.7°C9.3°C | 9.3°C | 18 | 2.2 | 10.510 h |
| December | 17.8°C4.5°C | 4.5°C | 28 | 3.6 | 10.010 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
April in nearby cities
- Glendale (Arizona), United States in AprilUnited States · 14 kmHigh 29.0°C · Low 13.6°C · 6.9 mm rain
- Tempe in AprilUnited States · 16 kmHigh 29.0°C · Low 13.0°C · 8.0 mm rain
- Scottsdale in AprilUnited States · 18 kmHigh 28.7°C · Low 12.9°C · 8.0 mm rain
- Peoria (Arizona), United States in AprilUnited States · 21 kmHigh 28.7°C · Low 13.5°C · 6.9 mm rain
- Mesa in AprilUnited States · 24 kmHigh 28.8°C · Low 12.5°C · 9.4 mm rain
- Avondale in AprilUnited States · 26 kmHigh 29.5°C · Low 14.2°C · 6.9 mm rain
- Goodyear in AprilUnited States · 26 kmHigh 29.5°C · Low 14.3°C · 6.9 mm rain
- Chandler in AprilUnited States · 27 kmHigh 29.1°C · Low 12.7°C · 7.0 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Phoenix) is explained once on the Phoenix year overview and on the Sources, method and limits page.
Scottsdale and Tempe lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.