Chicago O'Hare Airport Weather Average Temperature by Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Max Temperate (°C) -1 1 8 15 21 27 29 28 24 17 9 2 Min Temperate (°C) -10 -8 -2 3 9 14 17 16 12 6 0 -7 Max Temperate (°F) 30 34 46 59 70 81 84 82 75 63 48 36 Min Temperate (°F) 14 18 28 37 48 57 63 61 54 43 32 19 Sea Temperate (°C) 4 3 3 3 6 12 19 21 19 14 9 5 Average Sunlight by Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Hours of Sunshine 4 5 6 7 9 10 10 9 8 6 4 3 Hours of Daylight 10 11 12 13 15 15 15 14 12 11 10 9 Average Rainfall by Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Days with Rain 12 10 13 13 11 10 10 9 9 9 11 12 Average Rainfall (mm) 44 38 67 96 84 96 100 97 87 68 72 62
