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Phoenix, AZ vs Portland, TN weather comparison

Phoenix

AZ

Phoenix has around 79 fewer freezing nights a year.

Phoenix endures about 126 more days above 90 °F each year. Phoenix sees rain or snow on roughly 96 fewer days each year.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Phoenix, AZ and Portland, TN
PhoenixMetricPortland
307 daysSunny daysclear or partly cloudy skies195 days
7 inPrecipitationper year51 in
33 daysWet daysrain or snow per year129 days
0 inSnowfallper year5 in
163 daysHot daysabove 90 °F37 days
2 daysFreezing nightsat or below 32 °F81 days
35%Humidityaverage relative70%
74 °FAverage temperatureyear round58 °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.

PhoenixPortland

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 °FPortland, Jan: 45 °FPortland, Feb: 50 °FPortland, Mar: 59 °FPortland, Apr: 70 °FPortland, May: 78 °FPortland, Jun: 85 °FPortland, Jul: 89 °FPortland, Aug: 88 °FPortland, Sep: 82 °FPortland, Oct: 71 °FPortland, Nov: 59 °FPortland, Dec: 49 °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 °FPortland, Jan: 27 °FPortland, Feb: 29 °FPortland, Mar: 37 °FPortland, Apr: 47 °FPortland, May: 57 °FPortland, Jun: 65 °FPortland, Jul: 69 °FPortland, Aug: 67 °FPortland, Sep: 60 °FPortland, Oct: 48 °FPortland, Nov: 37 °FPortland, Dec: 30 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Phoenix high666976839210210510398877565
Portland high455059707885898882715949
Phoenix low444752586775828276645143
Portland low272937475765696760483730

Monthly precipitation

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

PhoenixPortland
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 inPortland, Jan: 4.2 inPortland, Feb: 4.6 inPortland, Mar: 5.0 inPortland, Apr: 5.1 inPortland, May: 4.9 inPortland, Jun: 3.9 inPortland, Jul: 3.9 inPortland, Aug: 3.2 inPortland, Sep: 3.3 inPortland, Oct: 3.7 inPortland, Nov: 4.0 inPortland, Dec: 4.9 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Phoenix0.91.10.80.20.10.10.60.90.70.60.50.8
Portland4.24.65.05.14.93.93.93.23.33.74.04.9

Monthly sunny days

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

PhoenixPortland
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 daysPortland, Jan: 14 daysPortland, Feb: 11 daysPortland, Mar: 15 daysPortland, Apr: 16 daysPortland, May: 16 daysPortland, Jun: 17 daysPortland, Jul: 19 daysPortland, Aug: 20 daysPortland, Sep: 20 daysPortland, Oct: 20 daysPortland, Nov: 17 daysPortland, Dec: 13 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Phoenix232125272929242628282524
Portland141115161617192020201713

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

Portland vs another city

See the full Portland, TN climate profile

More Tennessee 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).