Country: United States
Latitude:40.9885 N
Longitude:87.3373 W
Nearby Cities:Aurora, Naperville, Joliet, Gary, Hammond, Bolingbrook

Mean Rate of Change ( °C / Century )

Since: 1760 1810 1860 1910 1960 1990
Current Location 0.39
± 0.25
0.69
± 0.32
0.95
± 0.21
0.81
± 0.16
2.58
± 0.18
3.37
± 0.40
Indiana 0.37
± 0.25
0.62
± 0.34
0.89
± 0.21
0.76
± 0.13
2.62
± 0.17
3.35
± 0.43
Illinois 0.40
± 0.26
0.71
± 0.33
0.92
± 0.20
0.74
± 0.15
2.50
± 0.21
3.59
± 0.40
Contiguous United States - 0.66
± 0.25
0.76
± 0.18
0.87
± 0.08
2.16
± 0.16
2.76
± 0.36
United States - 0.69
± 0.24
0.80
± 0.16
0.89
± 0.08
2.36
± 0.13
2.42
± 0.39
North America - 0.82
± 0.23
1.02
± 0.18
1.11
± 0.11
2.90
± 0.19
4.72
± 0.28
Northern Hemisphere - 0.79
± 0.16
0.96
± 0.10
1.19
± 0.05
2.56
± 0.20
3.56
± 0.20
Global Land 0.43
± 0.18
0.79
± 0.13
0.91
± 0.08
1.11
± 0.03
2.16
± 0.11
2.78
± 0.13

Local Climate Variabiity

Difference from Global Land Average ( °C, 95% range )

Smoothing Monthly Annual Five-year Ten-year Twenty-year
± 3.46 ± 1.21 ± 0.58 ± 0.40 ± 0.31

Correlation to Global Land Average (R value)

Smoothing Monthly Annual Five-year Ten-year Twenty-year
0.43 0.64 0.82 0.89 0.90

Variability in Monthly Means ( °C, 95% range )

Jan Feb Mar Apr May Jun
± 5.17 ± 4.95 ± 4.30 ± 3.19 ± 3.25 ± 2.61
Jul Aug Sep Oct Nov Dec
± 2.43 ± 2.28 ± 2.64 ± 3.24 ± 3.45 ± 4.75

History of Temperature Stations

Evolution of Climate Extremes

Mean of Daily High Temperature

Mean of Daily Low Temperature