Climate averages 1991–2020

Scottsdale weather
in April.

A hot, very dry month: the 7th warmest and the 3rd driest of the year. Meets the pleasant-weather rule

Long-term climate patterns, not a forecast for a particular trip.

Average high 28.7°C Daytime mean, April
Average low 12.9°C Night-time mean, April
Rainfall 8.0 mm 1 day with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Scottsdale · average highYear overview

April is a hot month in Scottsdale: daytime highs average 28.7°C and nights cool to about 12.9°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 13 h 00 min on an average April day.

The nearest other city in this atlas is Tempe (11 km away). In April its highs average 29.0°C, about as warm as Scottsdale, with 8.0 mm of rain.

Among the 498 cities listed in the United States, Scottsdale ranks joint 15th 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; Scottsdale is 9.3°C warmer than that mean.

From April to May, average highs rise by 5.1°C to 33.8°C, and monthly rainfall falls from 8.0 mm to 4.1 mm.

The annual picture

April in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 051015202530354045 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Scottsdale climate table

1991–2020
Monthly climate averages for Scottsdale, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 18.4°C4.7°C4.7°C323.710.210 h
February 20.1°C6.2°C6.2°C384.111.011 h
March 24.2°C9.0°C9.0°C262.812.012 h
April, selected 28.7°C12.9°C12.9°C8.01.313.013 h
May 33.8°C18.2°C18.2°C4.10.613.914 h
June 39.3°C23.6°C23.6°C1.80.414.314 h
July 40.3°C27.7°C27.7°C193.514.114 h
August 39.3°C27.2°C27.2°C294.413.413 h
September 36.5°C23.1°C23.1°C243.112.412 h
October 30.4°C15.8°C15.8°C202.211.411 h
November 23.5°C9.3°C9.3°C182.210.510 h
December 17.7°C4.6°C4.6°C283.610.010 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

Distance from Scottsdale

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 limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Scottsdale) is explained once on the Scottsdale year overview and on the Sources, method and limits page.

Phoenix 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.