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Knoxville, TN vs Phoenix, AZ weather comparison

Knoxville

TN

Phoenix has around 81 fewer freezing nights a year.

Phoenix endures about 127 more days above 90 °F each year. Phoenix sees rain or snow on roughly 100 fewer days each year.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Knoxville, TN and Phoenix, AZ
KnoxvilleMetricPhoenix
195 daysSunny daysclear or partly cloudy skies307 days
48 inPrecipitationper year7 in
134 daysWet daysrain or snow per year33 days
5 inSnowfallper year0 in
36 daysHot daysabove 90 °F163 days
83 daysFreezing nightsat or below 32 °F2 days
73%Humidityaverage relative35%
58 °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.

KnoxvillePhoenix

Daily highs

6080100JanMarMayJulSepNovKnoxville, Jan: 48 °FKnoxville, Feb: 53 °FKnoxville, Mar: 61 °FKnoxville, Apr: 71 °FKnoxville, May: 78 °FKnoxville, Jun: 85 °FKnoxville, Jul: 88 °FKnoxville, Aug: 88 °FKnoxville, Sep: 83 °FKnoxville, Oct: 72 °FKnoxville, Nov: 60 °FKnoxville, Dec: 51 °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

406080JanMarMayJulSepNovKnoxville, Jan: 27 °FKnoxville, Feb: 30 °FKnoxville, Mar: 37 °FKnoxville, Apr: 45 °FKnoxville, May: 55 °FKnoxville, Jun: 63 °FKnoxville, Jul: 67 °FKnoxville, Aug: 65 °FKnoxville, Sep: 59 °FKnoxville, Oct: 46 °FKnoxville, Nov: 35 °FKnoxville, Dec: 30 °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
Knoxville high485361717885888883726051
Phoenix high666976839210210510398877565
Knoxville low273037455563676559463530
Phoenix low444752586775828276645143

Monthly precipitation

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

KnoxvillePhoenix
0.02.04.0JanMarMayJulSepNovKnoxville, Jan: 4.4 inKnoxville, Feb: 4.3 inKnoxville, Mar: 4.9 inKnoxville, Apr: 4.3 inKnoxville, May: 3.7 inKnoxville, Jun: 3.7 inKnoxville, Jul: 4.7 inKnoxville, Aug: 3.4 inKnoxville, Sep: 3.5 inKnoxville, Oct: 2.9 inKnoxville, Nov: 3.8 inKnoxville, Dec: 4.6 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
Knoxville4.44.34.94.33.73.74.73.43.52.93.84.6
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.

KnoxvillePhoenix
0102030JanMarMayJulSepNovKnoxville, Jan: 14 daysKnoxville, Feb: 11 daysKnoxville, Mar: 15 daysKnoxville, Apr: 16 daysKnoxville, May: 16 daysKnoxville, Jun: 17 daysKnoxville, Jul: 18 daysKnoxville, Aug: 19 daysKnoxville, Sep: 19 daysKnoxville, Oct: 20 daysKnoxville, Nov: 17 daysKnoxville, Dec: 13 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
Knoxville141115161617181919201713
Phoenix232125272929242628282524

Keep comparing

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

Knoxville vs another city

See the full Knoxville, TN climate profile

More Tennessee 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).