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Ontario, OH vs Phoenix, AZ weather comparison

Ontario

OH

Ontario picks up around 41 more inches of snow each winter.

Phoenix has around 128 fewer freezing nights a year. Phoenix endures about 155 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 Ontario, OH and Phoenix, AZ
OntarioMetricPhoenix
169 daysSunny daysclear or partly cloudy skies307 days
42 inPrecipitationper year7 in
147 daysWet daysrain or snow per year33 days
41 inSnowfallper year0 in
8 daysHot daysabove 90 °F163 days
129 daysFreezing nightsat or below 32 °F2 days
72%Humidityaverage relative35%
50 °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.

OntarioPhoenix

Daily highs

5075100JanMarMayJulSepNovOntario, Jan: 34 °FOntario, Feb: 38 °FOntario, Mar: 48 °FOntario, Apr: 62 °FOntario, May: 72 °FOntario, Jun: 80 °FOntario, Jul: 83 °FOntario, Aug: 82 °FOntario, Sep: 76 °FOntario, Oct: 63 °FOntario, Nov: 50 °FOntario, Dec: 39 °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

20406080JanMarMayJulSepNovOntario, Jan: 17 °FOntario, Feb: 19 °FOntario, Mar: 28 °FOntario, Apr: 38 °FOntario, May: 49 °FOntario, Jun: 58 °FOntario, Jul: 61 °FOntario, Aug: 60 °FOntario, Sep: 53 °FOntario, Oct: 42 °FOntario, Nov: 32 °FOntario, Dec: 23 °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
Ontario high343848627280838276635039
Phoenix high666976839210210510398877565
Ontario low171928384958616053423223
Phoenix low444752586775828276645143

Monthly precipitation

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

OntarioPhoenix
0.02.04.0JanMarMayJulSepNovOntario, Jan: 3.2 inOntario, Feb: 2.6 inOntario, Mar: 3.6 inOntario, Apr: 4.5 inOntario, May: 4.4 inOntario, Jun: 4.2 inOntario, Jul: 3.6 inOntario, Aug: 3.3 inOntario, Sep: 3.0 inOntario, Oct: 3.1 inOntario, Nov: 3.1 inOntario, Dec: 3.2 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
Ontario3.22.63.64.54.44.23.63.33.03.13.13.2
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.

OntarioPhoenix
0102030JanMarMayJulSepNovOntario, Jan: 8 daysOntario, Feb: 9 daysOntario, Mar: 12 daysOntario, Apr: 13 daysOntario, May: 14 daysOntario, Jun: 16 daysOntario, Jul: 20 daysOntario, Aug: 20 daysOntario, Sep: 19 daysOntario, Oct: 16 daysOntario, Nov: 12 daysOntario, Dec: 9 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
Ontario891213141620201916129
Phoenix232125272929242628282524

Keep comparing

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

Ontario vs another city

See the full Ontario, OH climate profile

More Ohio 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).