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East Alton, IL weather and climate

Madison County, IL · population 5,729 · about 443 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at East Alton's own coordinates.

The year at a glance

Sunny days
201
clear or partly cloudy, per year
Precipitation
42 in
per year
Wet days
118
rain or snow per year
Snowfall
12 in
per year
Hot days
30
above 90 °F
Freezing nights
95
at or below 32 °F
Humidity
68%
average relative
Average temperature
56 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
20406080JanMarMayJulSepNovDaily high, Jan: 39 °FDaily high, Feb: 44 °FDaily high, Mar: 54 °FDaily high, Apr: 66 °FDaily high, May: 75 °FDaily high, Jun: 84 °FDaily high, Jul: 87 °FDaily high, Aug: 86 °FDaily high, Sep: 80 °FDaily high, Oct: 68 °FDaily high, Nov: 54 °FDaily high, Dec: 44 °FDaily low, Jan: 22 °FDaily low, Feb: 25 °FDaily low, Mar: 35 °FDaily low, Apr: 45 °FDaily low, May: 56 °FDaily low, Jun: 66 °FDaily low, Jul: 69 °FDaily low, Aug: 67 °FDaily low, Sep: 60 °FDaily low, Oct: 48 °FDaily low, Nov: 37 °FDaily low, Dec: 27 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high394454667584878680685444
Daily low222535455666696760483727

Monthly precipitation

Total rain plus melted snow for each month, in inches.

0.02.04.0JanMarMayJulSepNovEast Alton, Jan: 2.8 inEast Alton, Feb: 2.5 inEast Alton, Mar: 3.6 inEast Alton, Apr: 4.7 inEast Alton, May: 5.2 inEast Alton, Jun: 4.2 inEast Alton, Jul: 3.3 inEast Alton, Aug: 2.9 inEast Alton, Sep: 3.3 inEast Alton, Oct: 3.4 inEast Alton, Nov: 3.6 inEast Alton, Dec: 2.5 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
East Alton2.82.53.64.75.24.23.32.93.33.43.62.5

Monthly sunny days

Days each month with clear or partly cloudy skies.

01020JanMarMayJulSepNovEast Alton, Jan: 14 daysEast Alton, Feb: 12 daysEast Alton, Mar: 15 daysEast Alton, Apr: 15 daysEast Alton, May: 16 daysEast Alton, Jun: 17 daysEast Alton, Jul: 21 daysEast Alton, Aug: 22 daysEast Alton, Sep: 21 daysEast Alton, Oct: 19 daysEast Alton, Nov: 16 daysEast Alton, Dec: 14 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
East Alton141215151617212221191614

Compare East Alton with another city

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About this data

Figures are 30 year averages for 1991-2020. 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).