Skip to content
VSWeather

Geneseo, IL vs Rock Falls, IL weather comparison

Geneseo

IL

Geneseo and Rock Falls have remarkably similar climates.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Geneseo, IL and Rock Falls, IL
GeneseoMetricRock Falls
191 daysSunny daysclear or partly cloudy skies188 days
38 inPrecipitationper year38 in
119 daysWet daysrain or snow per year121 days
28 inSnowfallper year29 in
22 daysHot daysabove 90 °F13 days
126 daysFreezing nightsat or below 32 °F137 days
70%Humidityaverage relative71%
51 °FAverage temperatureyear round49 °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.

GeneseoRock Falls

Daily highs

406080JanMarMayJulSepNovGeneseo, Jan: 31 °FGeneseo, Feb: 36 °FGeneseo, Mar: 49 °FGeneseo, Apr: 62 °FGeneseo, May: 74 °FGeneseo, Jun: 83 °FGeneseo, Jul: 86 °FGeneseo, Aug: 83 °FGeneseo, Sep: 77 °FGeneseo, Oct: 64 °FGeneseo, Nov: 49 °FGeneseo, Dec: 36 °FRock Falls, Jan: 29 °FRock Falls, Feb: 34 °FRock Falls, Mar: 46 °FRock Falls, Apr: 60 °FRock Falls, May: 71 °FRock Falls, Jun: 80 °FRock Falls, Jul: 83 °FRock Falls, Aug: 81 °FRock Falls, Sep: 75 °FRock Falls, Oct: 63 °FRock Falls, Nov: 47 °FRock Falls, Dec: 35 °F

Daily lows

204060JanMarMayJulSepNovGeneseo, Jan: 15 °FGeneseo, Feb: 19 °FGeneseo, Mar: 29 °FGeneseo, Apr: 40 °FGeneseo, May: 52 °FGeneseo, Jun: 62 °FGeneseo, Jul: 65 °FGeneseo, Aug: 63 °FGeneseo, Sep: 55 °FGeneseo, Oct: 43 °FGeneseo, Nov: 31 °FGeneseo, Dec: 20 °FRock Falls, Jan: 13 °FRock Falls, Feb: 17 °FRock Falls, Mar: 28 °FRock Falls, Apr: 38 °FRock Falls, May: 50 °FRock Falls, Jun: 60 °FRock Falls, Jul: 64 °FRock Falls, Aug: 61 °FRock Falls, Sep: 53 °FRock Falls, Oct: 41 °FRock Falls, Nov: 30 °FRock Falls, Dec: 19 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Geneseo high313649627483868377644936
Rock Falls high293446607180838175634735
Geneseo low151929405262656355433120
Rock Falls low131728385060646153413019

Monthly precipitation

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

GeneseoRock Falls
0.02.04.0JanMarMayJulSepNovGeneseo, Jan: 1.9 inGeneseo, Feb: 1.9 inGeneseo, Mar: 2.7 inGeneseo, Apr: 4.3 inGeneseo, May: 4.7 inGeneseo, Jun: 4.6 inGeneseo, Jul: 3.6 inGeneseo, Aug: 3.5 inGeneseo, Sep: 3.4 inGeneseo, Oct: 2.8 inGeneseo, Nov: 2.4 inGeneseo, Dec: 2.1 inRock Falls, Jan: 1.9 inRock Falls, Feb: 1.9 inRock Falls, Mar: 2.6 inRock Falls, Apr: 4.3 inRock Falls, May: 4.7 inRock Falls, Jun: 4.5 inRock Falls, Jul: 3.7 inRock Falls, Aug: 3.3 inRock Falls, Sep: 3.4 inRock Falls, Oct: 2.9 inRock Falls, Nov: 2.5 inRock Falls, Dec: 2.2 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Geneseo1.91.92.74.34.74.63.63.53.42.82.42.1
Rock Falls1.91.92.64.34.74.53.73.33.42.92.52.2

Monthly sunny days

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

GeneseoRock Falls
01020JanMarMayJulSepNovGeneseo, Jan: 13 daysGeneseo, Feb: 12 daysGeneseo, Mar: 15 daysGeneseo, Apr: 14 daysGeneseo, May: 15 daysGeneseo, Jun: 17 daysGeneseo, Jul: 20 daysGeneseo, Aug: 21 daysGeneseo, Sep: 20 daysGeneseo, Oct: 18 daysGeneseo, Nov: 15 daysGeneseo, Dec: 13 daysRock Falls, Jan: 13 daysRock Falls, Feb: 12 daysRock Falls, Mar: 14 daysRock Falls, Apr: 13 daysRock Falls, May: 15 daysRock Falls, Jun: 16 daysRock Falls, Jul: 20 daysRock Falls, Aug: 21 daysRock Falls, Sep: 20 daysRock Falls, Oct: 17 daysRock Falls, Nov: 15 daysRock Falls, Dec: 13 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Geneseo131215141517202120181513
Rock Falls131214131516202120171513

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).