Climate averages 1991–2020

Round Rock weather
in April.

A warm, moderately wet month: the 7th warmest and the 10th driest of the year.

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

Average high 25.5°C Daytime mean, April
Average low 14.9°C Night-time mean, April
Rainfall 76 mm 8 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Round Rock · average highYear overview

April is a warm month in Round Rock: daytime highs average 25.5°C and nights cool to about 14.9°C. By daytime temperature it is the 7th warmest of the 12 months.

Expect about 76 mm of rain on roughly 8 days, which makes April a moderately wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 54 min on an average April day.

The nearest other city in this atlas is Austin (28 km away). In April its highs average 25.8°C, about as warm as Round Rock, with 83 mm of rain.

Among the 498 cities listed in the United States, Round Rock ranks joint 60th of 498 for the warmest April highs and 217th of 498 for the driest April (rainfall, lowest first). The mean April high of those 498 cities is 19.4°C; Round Rock is 6.1°C warmer than that mean.

From April to May, average highs rise by 3.4°C to 28.9°C, and monthly rainfall rises from 76 mm to 110 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. 0510152025303540 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 1500

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

Every month, side by side

Round Rock climate table

1991–2020
Monthly climate averages for Round Rock, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 15.6°C5.8°C5.8°C596.810.410 h
February 17.8°C7.6°C7.6°C617.411.111 h
March 21.4°C11.0°C11.0°C748.812.012 h
April, selected 25.5°C14.9°C14.9°C768.212.913 h
May 28.9°C19.3°C19.3°C11010.813.714 h
June 32.4°C22.7°C22.7°C728.714.114 h
July 34.5°C24.2°C24.2°C395.713.914 h
August 34.7°C24.6°C24.6°C545.813.313 h
September 31.1°C21.5°C21.5°C747.412.412 h
October 26.4°C16.4°C16.4°C867.111.511 h
November 20.3°C10.8°C10.8°C696.610.611 h
December 16.3°C6.8°C6.8°C707.510.210 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 Round Rock

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 Round Rock) is explained once on the Round Rock year overview and on the Sources, method and limits page.