Glen Carbon village, Illinois

Official LSAD Designation: Glen Carbon village • Census GEOID: 1729639 • Madison County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for Glen Carbon village.

Reference Weather Station: ALTON - MELVIN PRICE L&D, IL US (ID: USC00110137) • Located 11.7 miles from community center • Elevation: 123.4 m

Month	Average High (°F)	Average Low (°F)	Mean Temp (°F)	Precipitation (in)
January	39.0°	21.7°	30.3°	2.53"
February	43.7°	25.2°	34.5°	2.52"
March	53.5°	34.7°	44.1°	3.46"
April	66.1°	45.2°	55.6°	4.92"
May	75.0°	56.1°	65.6°	5.46"
June	83.7°	65.6°	74.6°	3.40"
July	87.3°	69.3°	78.3°	3.95"
August	86.0°	67.3°	76.6°	3.30"
September	80.1°	59.8°	70.0°	3.38"
October	67.9°	48.0°	57.9°	2.93"
November	54.3°	36.5°	45.4°	3.43"
December	43.5°	27.1°	35.3°	2.59"

2010–2025, completed calendar years only.

NOAA station CAHOKIA ST LOUIS AP, IL US (ID: USW00003960) • 16.0 miles from community center .

This annual reference station differs from the monthly normals station (ID: USC00110137), which has no available annual mean history.

Show annual mean of daily highs and lows

Annual mean Annual mean of daily highs Annual mean of daily lows

Annual temperature data table (°F)

Annual station temperatures, 2010–2025. Unavailable means no reported value.
Year	Annual mean (°F)	Annual mean of daily highs (°F)	Annual mean of daily lows (°F)
2010	55.7	66.1	45.2
2011	56.7	66.9	46.5
2012	59.4	70.8	47.9
2013	54.8	65.4	44.2
2014	54.3	64.7	43.8
2015	57.5	67.8	47.2
2016	59.1	69.4	48.9
2017	59.1	70.6	47.6
2018	56.3	66.5	46.1
2019	56.0	66.1	45.9
2020	56.5	66.9	46.0
2021	56.9	67.5	46.4
2022	55.9	67.1	44.7
2023	58.5	69.9	47.1
2024	59.6	70.7	48.6
2025	57.3	68.3	46.4

Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.