WEATHER IN Chicago
Monthly temperature
| Month | Record low | Average low | Average | Average high | Record high |
| january | -27 (1985) | 18.8 | 25.2 | 31.6 | 67 (1950) |
| february | -21 (1899) | 21.8 | 28.8 | 35.7 | 75 (1976) |
| march | -12 (1873) | 31.0 | 39.0 | 47.0 | 88 (1986) |
| april | 7 (1982) | 40.3 | 49.7 | 59.0 | 91 (1980) |
| may | 27 (1875) | 50.6 | 60.6 | 70.5 | 98 (1934) |
| june | 35 (1945) | 60.8 | 70.6 | 80.4 | 104 (1988) |
| july | 45 (1983) | 66.4 | 75.4 | 84.5 | 105 (1934) |
| august | 42 (1986) | 65.1 | 73.8 | 82.5 | 102 (1918) |
| september | 29 (1995) | 57.1 | 66.3 | 75.5 | 101 (1953) |
| october | 14 (1887) | 45.4 | 54.0 | 62.7 | 94 (1963) |
| november | -2 (1950) | 34.1 | 41.3 | 48.4 | 81 (1950) |
| december | -25 (1983) | 24.4 | 30.5 | 36.6 | 71 (1982) |
| year | -27 (1985) | 40.7 | 49.8 | 59.0 | 105 (1934) |
Monthly precipitation
| Month | Average | Record low | Record high | Daily high |
| january | 1.99 | 0.10 (1981) | 4.84 (1916) | 2.76 (1960) |
| february | 1.97 | 0.06 (1877) | 5.98 (1881) | 3.44 (1997) |
| march | 2.45 | 0.29 (1910) | 5.91 (1976) | 3.20 (1884) |
| april | 3.75 | 0.14 (1899) | 8.68 (2013) | 3.83 (1975) |
| may | 4.49 | 0.30 (1992) | 7.74 (1945) | 3.45 (1981) |
| june | 4.10 | 0.12 (1922) | 10.58 (1892) | 4.64 (1976) |
| july | 3.71 | 0.22 (1936) | 11.15 (2011) | 6.86 (2011) |
| august | 4.25 | 0.18 (1893) | 17.10 (1987) | 6.49 (1987) |
| september | 3.19 | 0.02 (1979) | 14.17 (1961) | 6.64 (2008) |
| october | 3.43 | 0.18 (1897) | 12.05 (1954) | 3.95 (1954) |
| november | 2.42 | 0.31 (1904) | 8.22 (1985) | 3.34 (1883) |
| december | 2.11 | 0.16 (1896) | 8.56 (1982) | 4.47 (1982) |
| year | 36.89 | 22.24 (1956) | 50.86 (2008) | 6.86 (2011) |
Number of days with solid, liquid, and mixed precipitation
| Type of precipitation | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Wind speed, m/s
| jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
The frequency of different wind directions, %
| direction | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Air humidity, %
| jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Snow cover
| Month | jul | aug | sep | oct | nov | dec | jan | feb | mar | apr | may | jun | Year |
| number of days | |||||||||||||
| height (sm) | |||||||||||||
| max height (sm) |
Cloudy, score
| month | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
| total | |||||||||||||
| low |
Number of clear, cloudy and cloudy days
| month | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
| Total cloud | |||||||||||||
| Low cloud | |||||||||||||
Number of days with different phenomena
| phenomenon | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
The frequency of different types of clouds, %
| type of clouds | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |