South Chicago, Illinois Climate
United States
Pop. 28,095 Elev. 179 m / 587 ft
TZ: America/Chicago (UTC-5) ·
Summers in South Chicago are mild, with July highs around 80°F (27°C), while winters are frigid with January lows of 21°F (-6°C). Humidity pushes the summer feels-like temperature to 85°F (29°C), while wind chill can drive winter lows to 10°F (-12°C). Expect around 50 rainy days annually (36.4 in / 924 mm total), with snow on 6 days and 46 in (1170 mm) of annual accumulation. The city averages 109 sunny days per year and around 31 thunderstorm days. Ocean water temperatures reach 77°F (25°C) in summer.
| Temperature | 80°F (27°C) high | 21°F (-6°C) low |
| Feels like | 85°F (29°C) high | 10°F (-12°C) low |
| Rain | 50 days | 36.4 in (924 mm) /yr |
| Snow | 6 days | 46.1 in (1170 mm) /yr |
| Sky | 109 sunny | 31 stormy |
| Wind | 3.8 mph (1.7 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Aug, Sep
Sky & Air by Month
Cloud cover (%)
64
Jan 72
Feb 58
Mar 64
Apr 63
May 53
Jun 58
Jul 47
Aug 34
Sep 45
Oct 60
Nov 83
Dec Humidity (%)
64
Jan 71
Feb 71
Mar 76
Apr 83
May 81
Jun 82
Jul 75
Aug 77
Sep 71
Oct 71
Nov 78
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 11 mi Gary/Chicago International Airport (GYY)
Ski resort 13 mi Bunny Hill
National park 4 mi Pullman National Historical Park
Hospital 1 mi South Shore Hospital
Hiking trail 5 mi OBT-2
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 31°F -1°C | 21°F -6°C | 1.1 in 27 mm | 6.5 in166 mm | 9 |
| February | 33°F 1°C | 24°F -4°C | 0.3 in 7 mm | 10.7 in273 mm | 3 |
| March | 48°F 9°C | 37°F 3°C | 3.3 in 84 mm | 5.4 in138 mm | 8 |
| April | 52°F 11°C | 42°F 6°C | 3.4 in 87 mm | 0.1 in3 mm | 8 |
| May | 57°F 14°C | 49°F 9°C | 4.5 in 113 mm | — | 7 |
| June | 73°F 23°C | 63°F 17°C | 4.5 in 114 mm | — | 10 |
| July | 80°F 27°C | 71°F 22°C | 4.9 in 123 mm | — | 8 |
| August | 77°F 25°C | 69°F 21°C | 3.2 in 82 mm | — | 14 |
| September | 72°F 22°C | 64°F 18°C | 0.9 in 22 mm | — | 17 |
| October | 63°F 17°C | 55°F 13°C | 5.1 in 129 mm | — | 14 |
| November | 48°F 9°C | 41°F 5°C | 1.9 in 49 mm | 14.9 in378 mm | 10 |
| December | 36°F 2°C | 26°F -3°C | 3.4 in 87 mm | 8.4 in213 mm | 1 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 9 | 1 |
| February | 3 | 0 |
| March | 8 | 1 |
| April | 8 | 2 |
| May | 7 | 5 |
| June | 10 | 4 |
| July | 8 | 7 |
| August | 14 | 4 |
| September | 17 | 1 |
| October | 14 | 3 |
| November | 10 | 2 |
| December | 1 | 1 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 36°F 2°C | 33°F 1°C |
| February | 33°F 1°C | 33°F 0°C |
| March | 38°F 4°C | 37°F 3°C |
| April | 47°F 8°C | 45°F 7°C |
| May | 54°F 12°C | 54°F 12°C |
| June | 71°F 22°C | 68°F 20°C |
| July | 76°F 25°C | 78°F 26°C |
| August | 77°F 25°C | 78°F 25°C |
| September | 69°F 21°C | 71°F 22°C |
| October | 66°F 19°C | 61°F 16°C |
| November | 53°F 12°C | 48°F 9°C |
| December | 43°F 6°C | 37°F 3°C |