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Phoenix, AZ vs Sumter, SC weather comparison

Phoenix

AZ

Phoenix has around 52 fewer freezing nights a year.

Phoenix sees rain or snow on roughly 89 fewer days each year. Phoenix endures about 105 more days above 90 °F each year.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Phoenix, AZ and Sumter, SC
PhoenixMetricSumter
307 daysSunny daysclear or partly cloudy skies213 days
7 inPrecipitationper year44 in
33 daysWet daysrain or snow per year122 days
0 inSnowfallper year1 in
163 daysHot daysabove 90 °F58 days
2 daysFreezing nightsat or below 32 °F54 days
35%Humidityaverage relative70%
74 °FAverage temperatureyear round62 °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.

PhoenixSumter

Daily highs

6080100JanMarMayJulSepNovPhoenix, 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 °FSumter, Jan: 55 °FSumter, Feb: 59 °FSumter, Mar: 67 °FSumter, Apr: 75 °FSumter, May: 82 °FSumter, Jun: 87 °FSumter, Jul: 90 °FSumter, Aug: 89 °FSumter, Sep: 84 °FSumter, Oct: 75 °FSumter, Nov: 65 °FSumter, Dec: 58 °F

Daily lows

406080JanMarMayJulSepNovPhoenix, 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 °FSumter, Jan: 33 °FSumter, Feb: 35 °FSumter, Mar: 41 °FSumter, Apr: 50 °FSumter, May: 58 °FSumter, Jun: 66 °FSumter, Jul: 70 °FSumter, Aug: 69 °FSumter, Sep: 63 °FSumter, Oct: 51 °FSumter, Nov: 40 °FSumter, Dec: 35 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Phoenix high666976839210210510398877565
Sumter high555967758287908984756558
Phoenix low444752586775828276645143
Sumter low333541505866706963514035

Monthly precipitation

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

PhoenixSumter
0.02.04.0JanMarMayJulSepNovPhoenix, 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 inSumter, Jan: 3.4 inSumter, Feb: 3.3 inSumter, Mar: 3.4 inSumter, Apr: 3.4 inSumter, May: 3.0 inSumter, Jun: 4.2 inSumter, Jul: 4.6 inSumter, Aug: 4.6 inSumter, Sep: 4.0 inSumter, Oct: 3.4 inSumter, Nov: 2.8 inSumter, Dec: 3.7 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Phoenix0.91.10.80.20.10.10.60.90.70.60.50.8
Sumter3.43.33.43.43.04.24.64.64.03.42.83.7

Monthly sunny days

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

PhoenixSumter
0102030JanMarMayJulSepNovPhoenix, 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 daysSumter, Jan: 17 daysSumter, Feb: 15 daysSumter, Mar: 18 daysSumter, Apr: 19 daysSumter, May: 19 daysSumter, Jun: 17 daysSumter, Jul: 18 daysSumter, Aug: 18 daysSumter, Sep: 18 daysSumter, Oct: 20 daysSumter, Nov: 19 daysSumter, Dec: 17 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Phoenix232125272929242628282524
Sumter171518191917181818201917

Keep comparing

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

Phoenix vs another city

See the full Phoenix, AZ climate profile

More Arizona cities

Sumter vs another city

See the full Sumter, SC climate profile

More South Carolina 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).