Skip to content
VSWeather

Cahokia Heights, IL vs St. Louis, MO weather comparison

Cahokia Heights

IL

Cahokia Heights and St. Louis have remarkably similar climates.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Cahokia Heights, IL and St. Louis, MO
Cahokia HeightsMetricSt. Louis
203 daysSunny daysclear or partly cloudy skies201 days
42 inPrecipitationper year42 in
119 daysWet daysrain or snow per year118 days
14 inSnowfallper year14 in
46 daysHot daysabove 90 °F46 days
98 daysFreezing nightsat or below 32 °F81 days
67%Humidityaverage relative67%
56 °FAverage temperatureyear round58 °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.

Cahokia HeightsSt. Louis

Daily highs

406080JanMarMayJulSepNovCahokia Heights, Jan: 40 °FCahokia Heights, Feb: 46 °FCahokia Heights, Mar: 56 °FCahokia Heights, Apr: 67 °FCahokia Heights, May: 77 °FCahokia Heights, Jun: 86 °FCahokia Heights, Jul: 89 °FCahokia Heights, Aug: 88 °FCahokia Heights, Sep: 81 °FCahokia Heights, Oct: 69 °FCahokia Heights, Nov: 55 °FCahokia Heights, Dec: 44 °FSt. Louis, Jan: 41 °FSt. Louis, Feb: 46 °FSt. Louis, Mar: 56 °FSt. Louis, Apr: 68 °FSt. Louis, May: 77 °FSt. Louis, Jun: 86 °FSt. Louis, Jul: 90 °FSt. Louis, Aug: 88 °FSt. Louis, Sep: 81 °FSt. Louis, Oct: 70 °FSt. Louis, Nov: 56 °FSt. Louis, Dec: 45 °F

Daily lows

4060JanMarMayJulSepNovCahokia Heights, Jan: 24 °FCahokia Heights, Feb: 28 °FCahokia Heights, Mar: 36 °FCahokia Heights, Apr: 46 °FCahokia Heights, May: 56 °FCahokia Heights, Jun: 65 °FCahokia Heights, Jul: 69 °FCahokia Heights, Aug: 66 °FCahokia Heights, Sep: 57 °FCahokia Heights, Oct: 46 °FCahokia Heights, Nov: 36 °FCahokia Heights, Dec: 28 °FSt. Louis, Jan: 24 °FSt. Louis, Feb: 28 °FSt. Louis, Mar: 38 °FSt. Louis, Apr: 48 °FSt. Louis, May: 58 °FSt. Louis, Jun: 67 °FSt. Louis, Jul: 71 °FSt. Louis, Aug: 70 °FSt. Louis, Sep: 61 °FSt. Louis, Oct: 50 °FSt. Louis, Nov: 39 °FSt. Louis, Dec: 30 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Cahokia Heights high404656677786898881695544
St. Louis high414656687786908881705645
Cahokia Heights low242836465665696657463628
St. Louis low242838485867717061503930

Monthly precipitation

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

Cahokia HeightsSt. Louis
0.02.04.0JanMarMayJulSepNovCahokia Heights, Jan: 2.8 inCahokia Heights, Feb: 2.5 inCahokia Heights, Mar: 3.8 inCahokia Heights, Apr: 4.7 inCahokia Heights, May: 5.0 inCahokia Heights, Jun: 4.1 inCahokia Heights, Jul: 3.4 inCahokia Heights, Aug: 2.9 inCahokia Heights, Sep: 3.2 inCahokia Heights, Oct: 3.5 inCahokia Heights, Nov: 3.7 inCahokia Heights, Dec: 2.7 inSt. Louis, Jan: 2.8 inSt. Louis, Feb: 2.5 inSt. Louis, Mar: 3.7 inSt. Louis, Apr: 4.6 inSt. Louis, May: 5.0 inSt. Louis, Jun: 4.2 inSt. Louis, Jul: 3.4 inSt. Louis, Aug: 2.9 inSt. Louis, Sep: 3.3 inSt. Louis, Oct: 3.4 inSt. Louis, Nov: 3.6 inSt. Louis, Dec: 2.6 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Cahokia Heights2.82.53.84.75.04.13.42.93.23.53.72.7
St. Louis2.82.53.74.65.04.23.42.93.33.43.62.6

Monthly sunny days

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

Cahokia HeightsSt. Louis
01020JanMarMayJulSepNovCahokia Heights, Jan: 14 daysCahokia Heights, Feb: 13 daysCahokia Heights, Mar: 15 daysCahokia Heights, Apr: 15 daysCahokia Heights, May: 16 daysCahokia Heights, Jun: 18 daysCahokia Heights, Jul: 21 daysCahokia Heights, Aug: 22 daysCahokia Heights, Sep: 21 daysCahokia Heights, Oct: 20 daysCahokia Heights, Nov: 16 daysCahokia Heights, Dec: 14 daysSt. Louis, Jan: 14 daysSt. Louis, Feb: 12 daysSt. Louis, Mar: 15 daysSt. Louis, Apr: 15 daysSt. Louis, May: 16 daysSt. Louis, Jun: 17 daysSt. Louis, Jul: 21 daysSt. Louis, Aug: 22 daysSt. Louis, Sep: 21 daysSt. Louis, Oct: 19 daysSt. Louis, Nov: 16 daysSt. Louis, Dec: 14 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Cahokia Heights141315151618212221201614
St. Louis141215151617212221191614

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).