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Cupertino, CA vs Phoenix, AZ weather comparison

Cupertino

CA

Phoenix endures about 148 more days above 90 °F each year.

Phoenix sees rain or snow on roughly 24 fewer days each year. Phoenix enjoys about 51 more sunny days a year than Cupertino.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Cupertino, CA and Phoenix, AZ
CupertinoMetricPhoenix
257 daysSunny daysclear or partly cloudy skies307 days
26 inPrecipitationper year7 in
57 daysWet daysrain or snow per year33 days
0 inSnowfallper year0 in
15 daysHot daysabove 90 °F163 days
2 daysFreezing nightsat or below 32 °F2 days
71%Humidityaverage relative35%
61 °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.

CupertinoPhoenix

Daily highs

6080100JanMarMayJulSepNovCupertino, Jan: 59 °FCupertino, Feb: 62 °FCupertino, Mar: 66 °FCupertino, Apr: 69 °FCupertino, May: 73 °FCupertino, Jun: 78 °FCupertino, Jul: 80 °FCupertino, Aug: 80 °FCupertino, Sep: 80 °FCupertino, Oct: 75 °FCupertino, Nov: 65 °FCupertino, Dec: 59 °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

406080JanMarMayJulSepNovCupertino, Jan: 42 °FCupertino, Feb: 45 °FCupertino, Mar: 47 °FCupertino, Apr: 49 °FCupertino, May: 53 °FCupertino, Jun: 56 °FCupertino, Jul: 59 °FCupertino, Aug: 59 °FCupertino, Sep: 58 °FCupertino, Oct: 53 °FCupertino, Nov: 46 °FCupertino, Dec: 42 °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
Cupertino high596266697378808080756559
Phoenix high666976839210210510398877565
Cupertino low424547495356595958534642
Phoenix low444752586775828276645143

Monthly precipitation

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

CupertinoPhoenix
0.02.04.0JanMarMayJulSepNovCupertino, Jan: 5.1 inCupertino, Feb: 5.3 inCupertino, Mar: 4.0 inCupertino, Apr: 1.8 inCupertino, May: 0.9 inCupertino, Jun: 0.2 inCupertino, Jul: 0.0 inCupertino, Aug: 0.0 inCupertino, Sep: 0.1 inCupertino, Oct: 1.2 inCupertino, Nov: 2.4 inCupertino, Dec: 4.7 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
Cupertino5.15.34.01.80.90.20.00.00.11.22.44.7
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.

CupertinoPhoenix
0102030JanMarMayJulSepNovCupertino, Jan: 14 daysCupertino, Feb: 14 daysCupertino, Mar: 16 daysCupertino, Apr: 19 daysCupertino, May: 22 daysCupertino, Jun: 26 daysCupertino, Jul: 29 daysCupertino, Aug: 29 daysCupertino, Sep: 28 daysCupertino, Oct: 25 daysCupertino, Nov: 19 daysCupertino, Dec: 16 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
Cupertino141416192226292928251916
Phoenix232125272929242628282524

Keep comparing

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

Cupertino vs another city

See the full Cupertino, CA climate profile

More California 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).