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Chester, IL vs Phoenix, AZ weather comparison

Chester

IL

Chester picks up around 12 more inches of snow each winter.

Phoenix has around 101 fewer freezing nights a year. Phoenix sees rain or snow on roughly 84 fewer days each year.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Chester, IL and Phoenix, AZ
ChesterMetricPhoenix
204 daysSunny daysclear or partly cloudy skies307 days
43 inPrecipitationper year7 in
117 daysWet daysrain or snow per year33 days
12 inSnowfallper year0 in
51 daysHot daysabove 90 °F163 days
103 daysFreezing nightsat or below 32 °F2 days
69%Humidityaverage relative35%
56 °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.

ChesterPhoenix

Daily highs

406080100JanMarMayJulSepNovChester, Jan: 40 °FChester, Feb: 46 °FChester, Mar: 56 °FChester, Apr: 67 °FChester, May: 77 °FChester, Jun: 85 °FChester, Jul: 89 °FChester, Aug: 87 °FChester, Sep: 81 °FChester, Oct: 70 °FChester, Nov: 56 °FChester, Dec: 44 °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

20406080JanMarMayJulSepNovChester, Jan: 23 °FChester, Feb: 26 °FChester, Mar: 34 °FChester, Apr: 44 °FChester, May: 54 °FChester, Jun: 64 °FChester, Jul: 67 °FChester, Aug: 65 °FChester, Sep: 57 °FChester, Oct: 45 °FChester, Nov: 35 °FChester, Dec: 27 °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
Chester high404656677785898781705644
Phoenix high666976839210210510398877565
Chester low232634445464676557453527
Phoenix low444752586775828276645143

Monthly precipitation

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

ChesterPhoenix
0.02.04.0JanMarMayJulSepNovChester, Jan: 3.1 inChester, Feb: 2.9 inChester, Mar: 4.0 inChester, Apr: 4.9 inChester, May: 5.0 inChester, Jun: 3.7 inChester, Jul: 3.4 inChester, Aug: 2.8 inChester, Sep: 3.0 inChester, Oct: 3.5 inChester, Nov: 3.7 inChester, Dec: 3.0 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
Chester3.12.94.04.95.03.73.42.83.03.53.73.0
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.

ChesterPhoenix
0102030JanMarMayJulSepNovChester, Jan: 15 daysChester, Feb: 13 daysChester, Mar: 15 daysChester, Apr: 16 daysChester, May: 16 daysChester, Jun: 18 daysChester, Jul: 20 daysChester, Aug: 22 daysChester, Sep: 21 daysChester, Oct: 20 daysChester, Nov: 16 daysChester, Dec: 14 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
Chester151315161618202221201614
Phoenix232125272929242628282524

Keep comparing

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

Chester vs another city

See the full Chester, IL climate profile

More Illinois 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).