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Charleston, SC vs Phoenix, AZ weather comparison

Charleston

SC

Phoenix endures about 122 more days above 90 °F each year.

Phoenix sees rain or snow on roughly 96 fewer days each year. Phoenix enjoys about 93 more sunny days a year than Charleston.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Charleston, SC and Phoenix, AZ
CharlestonMetricPhoenix
214 daysSunny daysclear or partly cloudy skies307 days
47 inPrecipitationper year7 in
130 daysWet daysrain or snow per year33 days
0 inSnowfallper year0 in
41 daysHot daysabove 90 °F163 days
12 daysFreezing nightsat or below 32 °F2 days
77%Humidityaverage relative35%
67 °FAverage temperatureyear round74 °F

Monthly temperatures

Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.

CharlestonPhoenix

Daily highs

6080100JanMarMayJulSepNovCharleston, Jan: 59 °FCharleston, Feb: 62 °FCharleston, Mar: 67 °FCharleston, Apr: 74 °FCharleston, May: 81 °FCharleston, Jun: 86 °FCharleston, Jul: 89 °FCharleston, Aug: 88 °FCharleston, Sep: 84 °FCharleston, Oct: 77 °FCharleston, Nov: 68 °FCharleston, Dec: 62 °FPhoenix, Jan: 66 °FPhoenix, Feb: 69 °FPhoenix, Mar: 76 °FPhoenix, Apr: 83 °FPhoenix, May: 92 °FPhoenix, Jun: 102 °FPhoenix, Jul: 105 °FPhoenix, Aug: 103 °FPhoenix, Sep: 98 °FPhoenix, Oct: 87 °FPhoenix, Nov: 75 °FPhoenix, Dec: 65 °F

Daily lows

406080JanMarMayJulSepNovCharleston, Jan: 41 °FCharleston, Feb: 44 °FCharleston, Mar: 49 °FCharleston, Apr: 57 °FCharleston, May: 66 °FCharleston, Jun: 72 °FCharleston, Jul: 75 °FCharleston, Aug: 75 °FCharleston, Sep: 71 °FCharleston, Oct: 61 °FCharleston, Nov: 50 °FCharleston, Dec: 44 °FPhoenix, Jan: 44 °FPhoenix, Feb: 47 °FPhoenix, Mar: 52 °FPhoenix, Apr: 58 °FPhoenix, May: 67 °FPhoenix, Jun: 75 °FPhoenix, Jul: 82 °FPhoenix, Aug: 82 °FPhoenix, Sep: 76 °FPhoenix, Oct: 64 °FPhoenix, Nov: 51 °FPhoenix, Dec: 43 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Charleston high596267748186898884776862
Phoenix high666976839210210510398877565
Charleston low414449576672757571615044
Phoenix low444752586775828276645143

Monthly precipitation

Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.

CharlestonPhoenix
0.02.04.06.0JanMarMayJulSepNovCharleston, Jan: 3.2 inCharleston, Feb: 3.3 inCharleston, Mar: 3.2 inCharleston, Apr: 2.9 inCharleston, May: 2.7 inCharleston, Jun: 5.1 inCharleston, Jul: 5.4 inCharleston, Aug: 6.3 inCharleston, Sep: 5.0 inCharleston, Oct: 4.0 inCharleston, Nov: 2.6 inCharleston, Dec: 3.4 inPhoenix, Jan: 0.9 inPhoenix, Feb: 1.1 inPhoenix, Mar: 0.8 inPhoenix, Apr: 0.2 inPhoenix, May: 0.1 inPhoenix, Jun: 0.1 inPhoenix, Jul: 0.6 inPhoenix, Aug: 0.9 inPhoenix, Sep: 0.7 inPhoenix, Oct: 0.6 inPhoenix, Nov: 0.5 inPhoenix, Dec: 0.8 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Charleston3.23.33.22.92.75.15.46.35.04.02.63.4
Phoenix0.91.10.80.20.10.10.60.90.70.60.50.8

Monthly sunny days

Days each month with clear or partly cloudy skies, so compare the same month between cities.

CharlestonPhoenix
0102030JanMarMayJulSepNovCharleston, Jan: 17 daysCharleston, Feb: 15 daysCharleston, Mar: 18 daysCharleston, Apr: 20 daysCharleston, May: 20 daysCharleston, Jun: 17 daysCharleston, Jul: 17 daysCharleston, Aug: 16 daysCharleston, Sep: 18 daysCharleston, Oct: 21 daysCharleston, Nov: 20 daysCharleston, Dec: 17 daysPhoenix, Jan: 23 daysPhoenix, Feb: 21 daysPhoenix, Mar: 25 daysPhoenix, Apr: 27 daysPhoenix, May: 29 daysPhoenix, Jun: 29 daysPhoenix, Jul: 24 daysPhoenix, Aug: 26 daysPhoenix, Sep: 28 daysPhoenix, Oct: 28 daysPhoenix, Nov: 25 daysPhoenix, Dec: 24 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Charleston171518202017171618212017
Phoenix232125272929242628282524

Keep comparing

Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.

Charleston vs another city

See the full Charleston, SC climate profile

More South Carolina cities

Phoenix vs another city

See the full Phoenix, AZ climate profile

More Arizona cities

About this data

Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).