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Phoenix, AZ vs Sienna, TX weather comparison

Phoenix

AZ

Phoenix sees rain or snow on roughly 89 fewer days each year.

Phoenix enjoys about 93 more sunny days a year than Sienna. Phoenix endures about 44 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 Sienna, TX
PhoenixMetricSienna
307 daysSunny daysclear or partly cloudy skies214 days
7 inPrecipitationper year45 in
33 daysWet daysrain or snow per year123 days
0 inSnowfallper year0 in
163 daysHot daysabove 90 °F119 days
2 daysFreezing nightsat or below 32 °F8 days
35%Humidityaverage relative75%
74 °FAverage temperatureyear round70 °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.

PhoenixSienna

Daily highs

80100JanMarMayJulSepNovPhoenix, 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 °FSienna, Jan: 63 °FSienna, Feb: 67 °FSienna, Mar: 73 °FSienna, Apr: 80 °FSienna, May: 86 °FSienna, Jun: 91 °FSienna, Jul: 93 °FSienna, Aug: 94 °FSienna, Sep: 89 °FSienna, Oct: 83 °FSienna, Nov: 73 °FSienna, Dec: 65 °F

Daily lows

6080JanMarMayJulSepNovPhoenix, 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 °FSienna, Jan: 44 °FSienna, Feb: 48 °FSienna, Mar: 54 °FSienna, Apr: 59 °FSienna, May: 67 °FSienna, Jun: 73 °FSienna, Jul: 75 °FSienna, Aug: 75 °FSienna, Sep: 71 °FSienna, Oct: 61 °FSienna, Nov: 52 °FSienna, Dec: 46 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Phoenix high666976839210210510398877565
Sienna high636773808691939489837365
Phoenix low444752586775828276645143
Sienna low444854596773757571615246

Monthly precipitation

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

PhoenixSienna
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 inSienna, Jan: 3.9 inSienna, Feb: 3.1 inSienna, Mar: 3.5 inSienna, Apr: 3.6 inSienna, May: 3.3 inSienna, Jun: 4.2 inSienna, Jul: 3.5 inSienna, Aug: 3.7 inSienna, Sep: 4.6 inSienna, Oct: 4.0 inSienna, Nov: 3.9 inSienna, Dec: 3.9 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Phoenix0.91.10.80.20.10.10.60.90.70.60.50.8
Sienna3.93.13.53.63.34.23.53.74.64.03.93.9

Monthly sunny days

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

PhoenixSienna
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 daysSienna, Jan: 15 daysSienna, Feb: 12 daysSienna, Mar: 15 daysSienna, Apr: 16 daysSienna, May: 19 daysSienna, Jun: 21 daysSienna, Jul: 21 daysSienna, Aug: 21 daysSienna, Sep: 20 daysSienna, Oct: 22 daysSienna, Nov: 18 daysSienna, Dec: 15 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Phoenix232125272929242628282524
Sienna151215161921212120221815

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

Sienna vs another city

See the full Sienna, TX climate profile

More Texas 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).