Precipitation annual maximum series (inches)
Station ID: 11-1522
Station name: CHICAGO CAL TREAT WKS
State: IL
Latitude (decimal degrees): 41.6667
Longitude (decimal degrees): 87.6167
Elevation (feet): 590

Duration: 01h
07/21/1948	0.89
05/19/1949	1.27
07/19/1950	0.79
09/21/1951	1.56
06/17/1952	1.06
07/21/1953	1.13
10/03/1954	1.87
07/23/1955	2.25
07/16/1956	0.82
07/12/1957	2.13
06/08/1958	0.80
07/19/1959	1.47
07/02/1960	1.84
06/10/1961	0.87
07/20/1962	0.59
07/21/1963	1.41
07/17/1964	1.47
08/26/1965	1.12
04/20/1966	0.72
10/15/1967	1.08
06/23/1968	1.46
07/19/1969	0.63
04/30/1970	1.05
08/24/1971	1.74
08/22/1972	2.42
04/21/1973	1.00
-9/-9/-999	-9.99

Duration: 02h
07/21/1948	1.34
05/19/1949	1.51
06/02/1950	1.25
09/26/1951	2.23
06/17/1952	1.12
07/17/1953	1.28
10/03/1954	3.36
07/23/1955	2.30
07/16/1956	0.84
07/12/1957	2.50
06/08/1958	0.91
06/25/1959	1.59
07/02/1960	1.96
09/13/1961	1.46
07/22/1962	1.09
07/21/1963	2.53
08/21/1964	1.70
08/26/1965	1.50
06/13/1966	0.85
12/21/1967	1.58
06/23/1968	1.51
05/17/1969	0.88
04/30/1970	2.05
08/24/1971	2.17
08/22/1972	2.79
04/21/1973	1.13
-9/-9/-999	-9.99

Duration: 03h
07/21/1948	1.34
05/19/1949	1.68
06/02/1950	1.53
09/21/1951	2.63
06/17/1952	1.12
04/09/1953	1.33
10/03/1954	4.21
07/23/1955	2.31
04/29/1956	0.88
07/12/1957	3.21
06/08/1958	0.94
06/25/1959	2.71
07/02/1960	2.03
09/13/1961	1.69
07/22/1962	1.13
07/21/1963	3.44
07/17/1964	2.22
08/26/1965	1.55
06/13/1966	1.04
12/21/1967	1.75
06/25/1968	1.84
05/17/1969	1.13
04/30/1970	2.05
08/24/1971	2.22
08/22/1972	2.88
04/21/1973	1.29
-9/-9/-999	-9.99

Duration: 06h
07/21/1948	1.34
05/19/1949	1.83
06/02/1950	2.07
09/26/1951	2.85
09/01/1952	1.47
04/09/1953	1.33
10/03/1954	5.18
08/29/1955	2.96
04/28/1956	1.30
07/12/1957	5.57
05/31/1958	1.54
06/25/1959	2.72
07/02/1960	2.03
09/13/1961	2.30
07/22/1962	1.13
07/21/1963	3.49
07/17/1964	2.35
08/26/1965	1.71
07/27/1966	1.74
12/21/1967	1.91
06/25/1968	2.30
05/17/1969	1.39
04/30/1970	2.10
08/24/1971	2.22
08/22/1972	2.91
04/21/1973	1.42
-9/-9/-999	-9.99

Duration: 12h
09/07/1948	1.66
12/21/1949	2.42
06/02/1950	2.13
09/26/1951	2.85
09/01/1952	1.53
07/17/1953	1.75
10/09/1954	5.24
08/29/1955	3.22
04/28/1956	1.56
07/12/1957	6.06
05/31/1958	1.79
06/25/1959	2.72
01/12/1960	2.32
09/23/1961	3.07
08/05/1962	1.34
07/21/1963	3.49
07/17/1964	2.74
12/24/1965	2.20
05/11/1966	2.63
12/21/1967	1.91
06/25/1968	3.00
05/17/1969	1.39
04/30/1970	2.20
12/10/1971	2.55
08/22/1972	2.91
04/21/1973	1.65
-9/-9/-999	-9.99

Duration: 24h
09/07/1948	1.66
12/20/1949	3.12
06/02/1950	2.91
05/10/1951	3.24
09/01/1952	1.53
07/17/1953	1.79
10/09/1954	6.87
08/29/1955	3.22
04/28/1956	1.85
07/12/1957	6.06
05/31/1958	1.98
06/25/1959	2.72
01/11/1960	2.79
09/23/1961	3.71
08/05/1962	1.39
07/21/1963	3.49
07/17/1964	2.75
12/24/1965	3.30
05/11/1966	3.77
10/15/1967	3.09
06/24/1968	3.24
05/17/1969	1.44
04/30/1970	2.69
12/10/1971	2.59
08/22/1972	2.91
04/21/1973	2.28
-9/-9/-999	-9.99

Duration: 48h
07/21/1948	1.95
12/20/1949	3.99
06/02/1950	2.91
05/09/1951	3.93
06/12/1952	1.89
07/17/1953	1.81
10/09/1954	8.22
08/29/1955	3.22
04/27/1956	2.03
07/12/1957	6.06
05/30/1958	2.27
06/25/1959	2.72
01/11/1960	2.84
09/23/1961	5.10
08/05/1962	1.39
07/19/1963	4.29
07/17/1964	2.75
12/24/1965	3.34
05/11/1966	3.86
10/15/1967	3.31
06/23/1968	4.92
06/06/1969	1.78
05/12/1970	2.79
12/09/1971	2.69
08/22/1972	3.69
04/20/1973	2.39
-9/-9/-999	-9.99