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Key Biscayne, FL vs Phoenix, AZ weather comparison

Key Biscayne

FL

Phoenix sees rain or snow on roughly 117 fewer days each year.

Phoenix endures about 86 more days above 90 °F each year. Phoenix enjoys about 81 more sunny days a year than Key Biscayne.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Key Biscayne, FL and Phoenix, AZ
Key BiscayneMetricPhoenix
227 daysSunny daysclear or partly cloudy skies307 days
41 inPrecipitationper year7 in
151 daysWet daysrain or snow per year33 days
0 inSnowfallper year0 in
77 daysHot daysabove 90 °F163 days
0 daysFreezing nightsat or below 32 °F2 days
75%Humidityaverage relative35%
79 °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.

Key BiscaynePhoenix

Daily highs

80100JanMarMayJulSepNovKey Biscayne, Jan: 77 °FKey Biscayne, Feb: 79 °FKey Biscayne, Mar: 81 °FKey Biscayne, Apr: 84 °FKey Biscayne, May: 86 °FKey Biscayne, Jun: 89 °FKey Biscayne, Jul: 91 °FKey Biscayne, Aug: 91 °FKey Biscayne, Sep: 90 °FKey Biscayne, Oct: 87 °FKey Biscayne, Nov: 83 °FKey Biscayne, Dec: 80 °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

6080JanMarMayJulSepNovKey Biscayne, Jan: 63 °FKey Biscayne, Feb: 65 °FKey Biscayne, Mar: 67 °FKey Biscayne, Apr: 71 °FKey Biscayne, May: 75 °FKey Biscayne, Jun: 78 °FKey Biscayne, Jul: 79 °FKey Biscayne, Aug: 79 °FKey Biscayne, Sep: 79 °FKey Biscayne, Oct: 76 °FKey Biscayne, Nov: 71 °FKey Biscayne, Dec: 66 °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
Key Biscayne high777981848689919190878380
Phoenix high666976839210210510398877565
Key Biscayne low636567717578797979767166
Phoenix low444752586775828276645143

Monthly precipitation

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

Key BiscaynePhoenix
0.02.04.06.0JanMarMayJulSepNovKey Biscayne, Jan: 1.8 inKey Biscayne, Feb: 1.5 inKey Biscayne, Mar: 1.8 inKey Biscayne, Apr: 2.1 inKey Biscayne, May: 3.6 inKey Biscayne, Jun: 6.1 inKey Biscayne, Jul: 4.4 inKey Biscayne, Aug: 5.7 inKey Biscayne, Sep: 6.2 inKey Biscayne, Oct: 4.5 inKey Biscayne, Nov: 2.1 inKey Biscayne, Dec: 1.5 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
Key Biscayne1.81.51.82.13.66.14.45.76.24.52.11.5
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.

Key BiscaynePhoenix
0102030JanMarMayJulSepNovKey Biscayne, Jan: 21 daysKey Biscayne, Feb: 21 daysKey Biscayne, Mar: 23 daysKey Biscayne, Apr: 23 daysKey Biscayne, May: 23 daysKey Biscayne, Jun: 13 daysKey Biscayne, Jul: 15 daysKey Biscayne, Aug: 14 daysKey Biscayne, Sep: 13 daysKey Biscayne, Oct: 19 daysKey Biscayne, Nov: 21 daysKey Biscayne, Dec: 21 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
Key Biscayne212123232313151413192121
Phoenix232125272929242628282524

Keep comparing

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

Key Biscayne vs another city

See the full Key Biscayne, FL climate profile

More Florida 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).