Sun & Moon Weather Today Weather Hourly 14 Day Forecast Yesterday/Past Weather Climate (Averages) Currently: 75 °F. Partly sunny. (Weather station: Charleston Air Force Base Reporting Station, USA). See more current weather Annual Weather Averages Near Charleston
The average high and low temperatures are listed below monthly and annually for Charleston, in both degrees Fahrenheit and Celsius. Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.
In Charleston, South Carolina, the coolest month is January, with an average daily high temperature of 60.3 °F and an average low of 39.0 °F. Monthly Average Temperature High Low Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 0 20 40 60 80 100 Month Temperature (°F)
The average temperature of the coldest month (January) is of 9.8 °C (49.6 °F), that of the warmest month (July) is of 28.1 °C (82.5 °F). Here are the average temperatures. Precipitation amounts to 1,335 millimeters (52.5 inches) per year: it is therefore quite abundant.
BESTPLACES COMFORT INDEX The annual BestPlaces Comfort Index for Charleston is 7.2 (10=best), which means it is less comfortable than most places in South Carolina. 4.1 / 7.8 Summer / Winter October, April and May are the most pleasant months in Charleston, while July and August are the least comfortable months.
Temperature Records (1893-2020) Highest Maximum: 105 F, June 26 1952, Sullivans Island August 1, 1999; Charleston Lowest Minimum: 4 F, January 21, 1985; McClellanville
The average temperatures fluctuate from 57°F in March to a maximum of 79.5°F in May. The rainfall also follows an ascending pattern, with an average rainfall of 1.42" in March gradually increasing to 2.87" in May. Meanwhile, the daylight hours also show a noticeable increase, advancing from 12 hours in March to 13.9 hours in May.
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