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Joliet, IL vs Lockport, IL weather comparison

Joliet

IL

Lockport picks up around 11 more inches of snow each winter.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Joliet, IL and Lockport, IL
JolietMetricLockport
183 daysSunny daysclear or partly cloudy skies183 days
38 inPrecipitationper year39 in
125 daysWet daysrain or snow per year127 days
19 inSnowfallper year30 in
15 daysHot daysabove 90 °F17 days
125 daysFreezing nightsat or below 32 °F124 days
71%Humidityaverage relative71%
51 °FAverage temperatureyear round51 °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.

JolietLockport

Daily highs

406080JanMarMayJulSepNovJoliet, Jan: 31 °FJoliet, Feb: 36 °FJoliet, Mar: 47 °FJoliet, Apr: 60 °FJoliet, May: 71 °FJoliet, Jun: 80 °FJoliet, Jul: 84 °FJoliet, Aug: 82 °FJoliet, Sep: 76 °FJoliet, Oct: 63 °FJoliet, Nov: 49 °FJoliet, Dec: 37 °FLockport, Jan: 32 °FLockport, Feb: 36 °FLockport, Mar: 48 °FLockport, Apr: 61 °FLockport, May: 72 °FLockport, Jun: 82 °FLockport, Jul: 85 °FLockport, Aug: 83 °FLockport, Sep: 77 °FLockport, Oct: 64 °FLockport, Nov: 49 °FLockport, Dec: 37 °F

Daily lows

204060JanMarMayJulSepNovJoliet, Jan: 17 °FJoliet, Feb: 20 °FJoliet, Mar: 29 °FJoliet, Apr: 39 °FJoliet, May: 50 °FJoliet, Jun: 60 °FJoliet, Jul: 64 °FJoliet, Aug: 63 °FJoliet, Sep: 55 °FJoliet, Oct: 43 °FJoliet, Nov: 32 °FJoliet, Dec: 22 °FLockport, Jan: 16 °FLockport, Feb: 20 °FLockport, Mar: 29 °FLockport, Apr: 40 °FLockport, May: 50 °FLockport, Jun: 60 °FLockport, Jul: 64 °FLockport, Aug: 63 °FLockport, Sep: 55 °FLockport, Oct: 44 °FLockport, Nov: 32 °FLockport, Dec: 22 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Joliet high313647607180848276634937
Lockport high323648617282858377644937
Joliet low172029395060646355433222
Lockport low162029405060646355443222

Monthly precipitation

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

JolietLockport
0.02.04.0JanMarMayJulSepNovJoliet, Jan: 2.2 inJoliet, Feb: 2.0 inJoliet, Mar: 2.7 inJoliet, Apr: 4.4 inJoliet, May: 4.6 inJoliet, Jun: 4.3 inJoliet, Jul: 3.6 inJoliet, Aug: 3.5 inJoliet, Sep: 2.9 inJoliet, Oct: 3.2 inJoliet, Nov: 2.7 inJoliet, Dec: 2.2 inLockport, Jan: 2.3 inLockport, Feb: 2.0 inLockport, Mar: 2.8 inLockport, Apr: 4.4 inLockport, May: 4.6 inLockport, Jun: 4.3 inLockport, Jul: 3.8 inLockport, Aug: 3.7 inLockport, Sep: 2.9 inLockport, Oct: 3.2 inLockport, Nov: 2.7 inLockport, Dec: 2.2 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Joliet2.22.02.74.44.64.33.63.52.93.22.72.2
Lockport2.32.02.84.44.64.33.83.72.93.22.72.2

Monthly sunny days

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

JolietLockport
01020JanMarMayJulSepNovJoliet, Jan: 11 daysJoliet, Feb: 11 daysJoliet, Mar: 14 daysJoliet, Apr: 13 daysJoliet, May: 15 daysJoliet, Jun: 16 daysJoliet, Jul: 20 daysJoliet, Aug: 20 daysJoliet, Sep: 20 daysJoliet, Oct: 17 daysJoliet, Nov: 14 daysJoliet, Dec: 12 daysLockport, Jan: 11 daysLockport, Feb: 11 daysLockport, Mar: 14 daysLockport, Apr: 13 daysLockport, May: 15 daysLockport, Jun: 16 daysLockport, Jul: 20 daysLockport, Aug: 20 daysLockport, Sep: 20 daysLockport, Oct: 17 daysLockport, Nov: 14 daysLockport, Dec: 12 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Joliet111114131516202020171412
Lockport111114131516202020171412

Keep comparing

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

Joliet vs another city

See the full Joliet, IL climate profile

More Illinois cities

Lockport vs another city

See the full Lockport, IL climate profile

More Illinois 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).