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To fill in the rest, there's information on how many days a month get above or below a given temperature. To find out how often it rises over 70, 80 or 90 °F each month in the city, scroll down farther. There are also monthly and yearly counts of days with cold weather. The first set of high and low temperatures are averages for 2010 to 2019.
Charleston Temperature History 2022. The daily range of reported temperatures (gray bars) and 24-hour highs (red ticks) and lows (blue ticks), placed over the daily average high (faint red line) and low (faint blue line) temperature, with 25th to 75th and 10th to 90th percentile bands.
Averages are for Charleston Air Force Base Reporting Station, which is 10 miles from Charleston. Based on weather reports collected during 1992–2021. Showing: All Year January February March April May June July August September October November December
The summer months, June through August, sees Charleston 's temperatures soar to higher levels, peaking at 88.2°F (31.2°C) in July. Combined with the absolute highest levels of average relative humidity, ranging from 75% to 76%, the overall weather conditions could be deemed as rather hard to cope with.
- What is the coldest month in Charleston?Charleston, South Carolina, experiences its lowest temperatures in January , with an average peak of 57°F and a low of 44.4°F .
- What are the least humid months in Charleston?January and March , with an average relative humidity of 73% , are the least humid months in Charleston.
- What is the driest month in Charleston?January is the month with the least rainfall in Charleston. Rain falls for 9.8 days and accumulates 1.42" of precipitation .
- How many days does it rain in Charleston?Throughout the year, there are 178.9 rainfall days , and 41.93" of precipitation is accumulated.
- When does it snow in Charleston?Months with snowfall in Charleston, South Carolina, are January and December .
- When does it snow the most in Charleston?January is the month with the most snowfall . Snow falls for 0.4 days and accumulates 0.12" of snow .
- How many days does it snow in Charleston?In Charleston, during the entire year, snow falls for 0.6 days and aggregates up to 0.16" of snow .
- What is the month with the lowest UV index in Charleston?January is the month with the lowest UV index in Charleston, South Carolina, with an average maximum UV index of 3 .
- When it does not snow in Charleston?In Charleston, snow does not fall in February through November .
Charleston Temperature History in the Summer of 2022. The daily range of reported temperatures (gray bars) and 24-hour highs (red ticks) and lows (blue ticks), placed over the daily average high (faint red line) and low (faint blue line) temperature, with 25th to 75th and 10th to 90th percentile bands.
August is generally a warm to hot, muggy month. The average temperature is of 27.5 °C (81 °F), with a minimum of 22.8 °C (73.1 °F) and a maximum of 32.1 °C (89.8 °F). On the coldest nights of the month, the temperature usually drops to around 19 °C (66.5 °F). However, it dropped to 15 °C (59 °F) in August 2004.
Past Weather in Charleston, South Carolina, USA — March 2022. Time/General. Weather. Time Zone. DST Changes. Sun & Moon. Weather Today Weather Hourly 14 Day Forecast Yesterday/Past Weather Climate (Averages) Currently: 82 °F. Scattered clouds.
