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Phoenix, AZ vs River Forest, IL weather comparison

Phoenix

AZ

River Forest picks up around 39 more inches of snow each winter.

Phoenix has around 110 fewer freezing nights a year. Phoenix endures about 145 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 River Forest, IL
PhoenixMetricRiver Forest
307 daysSunny daysclear or partly cloudy skies179 days
7 inPrecipitationper year37 in
33 daysWet daysrain or snow per year130 days
0 inSnowfallper year39 in
163 daysHot daysabove 90 °F18 days
2 daysFreezing nightsat or below 32 °F112 days
35%Humidityaverage relative71%
74 °FAverage temperatureyear round52 °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.

PhoenixRiver Forest

Daily highs

5075100JanMarMayJulSepNovPhoenix, 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 °FRiver Forest, Jan: 32 °FRiver Forest, Feb: 36 °FRiver Forest, Mar: 47 °FRiver Forest, Apr: 60 °FRiver Forest, May: 71 °FRiver Forest, Jun: 81 °FRiver Forest, Jul: 85 °FRiver Forest, Aug: 83 °FRiver Forest, Sep: 76 °FRiver Forest, Oct: 63 °FRiver Forest, Nov: 49 °FRiver Forest, Dec: 37 °F

Daily lows

20406080JanMarMayJulSepNovPhoenix, 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 °FRiver Forest, Jan: 19 °FRiver Forest, Feb: 22 °FRiver Forest, Mar: 31 °FRiver Forest, Apr: 41 °FRiver Forest, May: 51 °FRiver Forest, Jun: 62 °FRiver Forest, Jul: 67 °FRiver Forest, Aug: 66 °FRiver Forest, Sep: 58 °FRiver Forest, Oct: 46 °FRiver Forest, Nov: 35 °FRiver Forest, Dec: 25 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Phoenix high666976839210210510398877565
River Forest high323647607181858376634937
Phoenix low444752586775828276645143
River Forest low192231415162676658463525

Monthly precipitation

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

PhoenixRiver Forest
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 inRiver Forest, Jan: 2.3 inRiver Forest, Feb: 2.1 inRiver Forest, Mar: 2.6 inRiver Forest, Apr: 4.2 inRiver Forest, May: 4.1 inRiver Forest, Jun: 3.6 inRiver Forest, Jul: 3.4 inRiver Forest, Aug: 3.6 inRiver Forest, Sep: 2.9 inRiver Forest, Oct: 3.3 inRiver Forest, Nov: 2.6 inRiver Forest, Dec: 2.3 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Phoenix0.91.10.80.20.10.10.60.90.70.60.50.8
River Forest2.32.12.64.24.13.63.43.62.93.32.62.3

Monthly sunny days

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

PhoenixRiver Forest
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 daysRiver Forest, Jan: 10 daysRiver Forest, Feb: 11 daysRiver Forest, Mar: 14 daysRiver Forest, Apr: 14 daysRiver Forest, May: 15 daysRiver Forest, Jun: 17 daysRiver Forest, Jul: 20 daysRiver Forest, Aug: 20 daysRiver Forest, Sep: 20 daysRiver Forest, Oct: 16 daysRiver Forest, Nov: 13 daysRiver Forest, Dec: 11 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Phoenix232125272929242628282524
River Forest101114141517202020161311

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).