Climate averages 1991–2020

North Charleston weather
in April.

A warm, moderately wet 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 23.1°C Daytime mean, April
Average low 14.0°C Night-time mean, April
Rainfall 74 mm 8 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in North Charleston · average highYear overview

April is a warm month in North Charleston: daytime highs average 23.1°C and nights cool to about 14.0°C. By daytime temperature it is the 7th warmest of the 12 months.

Expect about 74 mm of rain on roughly 8 days, which makes April a moderately wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 58 min on an average April day.

The nearest other city in this atlas is Charleston (10 km away). In April its highs average 22.3°C, 0.8°C cooler than North Charleston, with 74 mm of rain.

Among the 498 cities listed in the United States, North Charleston ranks joint 124th of 498 for the warmest April highs and joint 211th of 498 for the driest April (rainfall, lowest first). The mean April high of those 498 cities is 19.4°C; North Charleston is 3.8°C warmer than that mean.

From April to May, average highs rise by 3.9°C to 27.1°C, and monthly rainfall falls from 74 mm to 68 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. 05101520253035 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 2000

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

Every month, side by side

North Charleston climate table

1991–2020
Monthly climate averages for North Charleston, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 14.4°C5.8°C5.8°C818.410.210 h
February 16.1°C7.2°C7.2°C847.811.011 h
March 19.2°C10.1°C10.1°C818.212.012 h
April, selected 23.1°C14.0°C14.0°C747.513.013 h
May 27.1°C18.5°C18.5°C689.013.814 h
June 29.7°C22.4°C22.4°C13016.314.314 h
July 31.0°C24.2°C24.2°C13817.714.114 h
August 30.1°C23.8°C23.8°C16018.913.413 h
September 27.9°C21.3°C21.3°C12813.212.412 h
October 23.9°C16.1°C16.1°C1017.811.411 h
November 19.2°C10.7°C10.7°C656.710.511 h
December 15.8°C7.5°C7.5°C867.610.010 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 North Charleston

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 North Charleston) is explained once on the North Charleston year overview and on the Sources, method and limits page.

Charleston lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.