Climate averages 1991–2020

North Charleston weather
in June.

A hot, wet month: the 3rd warmest and the 10th driest of the year.

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

Average high 29.7°C Daytime mean, June
Average low 22.4°C Night-time mean, June
Rainfall 130 mm 16 days with ≥1 mm
Daylight 14 h Sunrise to sunset, per day
Every month in North Charleston · average highYear overview

June is a hot month in North Charleston: daytime highs average 29.7°C and nights cool to about 22.4°C. By daytime temperature it is the 3rd warmest of the 12 months.

Expect about 130 mm of rain on roughly 16 days, which makes June a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 17 min on an average June day.

The nearest other city in this atlas is Charleston (10 km away). In June its highs average 29.0°C, 0.8°C cooler than North Charleston, with 130 mm of rain.

Among the 498 cities listed in the United States, North Charleston ranks joint 159th of 498 for the warmest June highs and joint 456th of 498 for the driest June (rainfall, lowest first). The mean June high of those 498 cities is 27.9°C; North Charleston is 1.8°C warmer than that mean.

From June to July, average highs rise by 1.3°C to 31.0°C, and monthly rainfall rises from 130 mm to 138 mm.

The annual picture

June 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 23.1°C14.0°C14.0°C747.513.013 h
May 27.1°C18.5°C18.5°C689.013.814 h
June, selected 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

June 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.