In this article we shall discuss the averages of Chicago’s weather, including its average snow and precipitation, as well as its climate. Firstly, a quick breakdown of the climate. Chicago’s climate is classified as humid continental (in Köppen, that’s Dfa). This means that all seasons are represented, in simpler terms, winter, spring, summer, and autumn are all represented in the year.
Now for averages in terms of temperature lows and highs, as well as snowfall and precipitation! All metric measurements are in parentheses and Imperial isn’t.
In January average high temperature is 29.1 (-1.6) degrees and average low temperature is 12.6 (-10.8) degrees. Average precipitation in inches (mm) is 1.47 (37.3), while average snowfall in inches (cm), is 10.0 (25.4). Record high and low temperatures are 67 (19) and -33 (-36) degrees respectively.
In February average high temperature is 33.7 (0.9) degrees and average low temperature is 16.2 (−8.8) degrees. Average precipitation in inches (mm) is 1.62 (41.1), while average snowfall in inches (cm), is 7.0 (17.8). Record high and low temperatures are 72 (22) and -25 (-32) degrees respectively.
In March average high temperature is 47 (-8.3) degrees and average low temperature is 26.9 (-2.8) degrees. Average precipitation in inches (mm) is 2.23 (37.3), while average snowfall in inches (cm), is 3.7 (9.4). Record high and low temperatures are 83 (28) and -15 (-26) degrees respectively.
In April average high temperature is 60 (-15.6) degrees and average low temperature is 37 (2.8) degrees. Average precipitation in inches (mm) is 3.38 (85.9), while average snowfall in inches (cm), is .8 (2). Record high and low temperatures are 93 (34) and 8 (-13) degrees respectively.
In May average high temperature is 70.6 (21.4) degrees and average low temperature is 47.1 (8.4) degrees. Average precipitation in inches (mm) is 4.26 (108.2). Record high and low temperatures are 105 (41) and 21 (-6) degrees respectively.
In June average high temperature is 80.1 (26.7) degrees and average low temperature is 57.5 (14.2) degrees. Average precipitation in inches (mm) is 4.01 (101.9). Record high and low temperatures are 106 (41) and 34 (1) degrees respectively.
In July average high temperature is 83.5 (28.6) degrees and average low temperature is 59.8 (15.4) degrees. Average precipitation in inches (mm) is 4.19 (106.4). Record high and low temperatures are 111 (44) and 40 (4) degrees respectively.
In August average high temperature is 81.2 (27.3) degrees and average low temperature is 59 (15) degrees. Average precipitation in inches (mm) is 4.12 (104.6). Record high and low temperatures are 105 (41) and 37 (3) degrees respectively.
In September average high temperature is 74.9 (23.8) degrees and average low temperature is 50.7 (10.4) degrees. Average precipitation in inches (mm) is 3.44 (87.4). Record high and low temperatures are 103 (39) and 25 (-4) degrees respectively.
In October average high temperature is 62.2 (16.8) degrees and average low temperature is 39 (3.9) degrees. Average precipitation in inches (mm) is 3.12 (79.2), while average snowfall in inches (cm), is .1 (.3). Record high and low temperatures are 90 (32) and 11 (-12) degrees respectively.
In November average high temperature is 47.8 (8.8) degrees and average low temperature is 28.4 (-2) degrees. Average precipitation in inches (mm) is 3.14 (79.2), while average snowfall in inches (cm), is 1.4 (3.6). Record high and low temperatures are 81 (27) and -11 (-24) degrees respectively.
In December average high temperature is 32.8 (0.4) degrees and average low temperature is 17.5 (−8.1) degrees. Average precipitation in inches (mm) is 1.96 (49.8), while average snowfall in inches (cm), is 7.5 (19.1). Record high and low temperatures are 69 (21) and -25 (-32) degrees respectively.