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Old Greenwich, CT vs Phoenix, AZ weather comparison

Old Greenwich

CT

Old Greenwich picks up around 33 more inches of snow each winter.

Phoenix has around 103 fewer freezing nights a year. Phoenix endures about 149 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 Old Greenwich, CT and Phoenix, AZ
Old GreenwichMetricPhoenix
202 daysSunny daysclear or partly cloudy skies307 days
44 inPrecipitationper year7 in
122 daysWet daysrain or snow per year33 days
33 inSnowfallper year0 in
14 daysHot daysabove 90 °F163 days
105 daysFreezing nightsat or below 32 °F2 days
73%Humidityaverage relative35%
53 °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.

Old GreenwichPhoenix

Daily highs

406080100JanMarMayJulSepNovOld Greenwich, Jan: 38 °FOld Greenwich, Feb: 41 °FOld Greenwich, Mar: 48 °FOld Greenwich, Apr: 61 °FOld Greenwich, May: 71 °FOld Greenwich, Jun: 79 °FOld Greenwich, Jul: 84 °FOld Greenwich, Aug: 82 °FOld Greenwich, Sep: 75 °FOld Greenwich, Oct: 64 °FOld Greenwich, Nov: 53 °FOld Greenwich, Dec: 43 °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

20406080JanMarMayJulSepNovOld Greenwich, Jan: 23 °FOld Greenwich, Feb: 24 °FOld Greenwich, Mar: 31 °FOld Greenwich, Apr: 40 °FOld Greenwich, May: 50 °FOld Greenwich, Jun: 59 °FOld Greenwich, Jul: 65 °FOld Greenwich, Aug: 64 °FOld Greenwich, Sep: 57 °FOld Greenwich, Oct: 46 °FOld Greenwich, Nov: 36 °FOld Greenwich, Dec: 28 °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
Old Greenwich high384148617179848275645343
Phoenix high666976839210210510398877565
Old Greenwich low232431405059656457463628
Phoenix low444752586775828276645143

Monthly precipitation

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

Old GreenwichPhoenix
0.02.04.0JanMarMayJulSepNovOld Greenwich, Jan: 3.3 inOld Greenwich, Feb: 3.1 inOld Greenwich, Mar: 4.1 inOld Greenwich, Apr: 3.6 inOld Greenwich, May: 3.4 inOld Greenwich, Jun: 3.7 inOld Greenwich, Jul: 3.6 inOld Greenwich, Aug: 4.1 inOld Greenwich, Sep: 3.7 inOld Greenwich, Oct: 4.0 inOld Greenwich, Nov: 3.2 inOld Greenwich, Dec: 4.1 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
Old Greenwich3.33.14.13.63.43.73.64.13.74.03.24.1
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.

Old GreenwichPhoenix
0102030JanMarMayJulSepNovOld Greenwich, Jan: 17 daysOld Greenwich, Feb: 16 daysOld Greenwich, Mar: 17 daysOld Greenwich, Apr: 15 daysOld Greenwich, May: 15 daysOld Greenwich, Jun: 15 daysOld Greenwich, Jul: 19 daysOld Greenwich, Aug: 18 daysOld Greenwich, Sep: 18 daysOld Greenwich, Oct: 19 daysOld Greenwich, Nov: 17 daysOld Greenwich, Dec: 17 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
Old Greenwich171617151515191818191717
Phoenix232125272929242628282524

Keep comparing

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

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).