Precipitation annual maximum series (inches)
Station ID: 11-5493
Station name: MCHENRY LOCK & DAM
State: IL
Latitude (decimal degrees): 42.3103
Longitude (decimal degrees): 88.2525
Elevation (feet): 742

Duration: 01h
09/20/1948	0.30
07/26/1949	1.00
06/02/1950	1.22
07/31/1951	0.92
06/13/1952	1.00
07/04/1953	1.36
04/24/1954	0.86
07/05/1955	1.81
08/30/1956	0.97
07/29/1957	1.11
07/02/1958	1.81
07/29/1959	0.78
06/22/1960	1.42
10/24/1961	0.64
06/08/1962	0.79
09/20/1963	0.77
06/22/1964	1.16
06/05/1965	1.04
06/09/1966	1.04
08/18/1967	1.14
08/16/1968	1.30
07/17/1969	1.55
06/02/1970	1.90
08/24/1971	0.95
08/06/1972	2.12
09/03/1973	0.78
-9/-9/-999	-9.99
06/20/1975	0.80
07/21/1976	0.69
05/16/1977	1.18
08/15/1978	1.45
06/29/1979	1.12
09/09/1980	1.22
08/14/1981	1.62
-9/-9/-999	-9.99
11/23/1983	0.65
09/24/1984	0.91
07/14/1985	2.44
09/26/1986	1.30
08/14/1987	2.00
07/16/1988	1.40
-9/-9/-999	-9.99
-9/-9/-999	-9.99
-9/-9/-999	-9.99
-9/-9/-999	-9.99
06/29/1993	1.30
07/04/1994	0.80
06/27/1995	1.30
05/19/1996	1.30
06/30/1997	0.80
06/25/1998	1.70
-9/-9/-999	-9.99
05/18/2000	1.10

Duration: 02h
09/19/1948	0.44
07/26/1949	1.28
06/02/1950	1.71
08/06/1951	1.26
07/18/1952	1.29
07/04/1953	1.37
04/25/1954	1.13
07/05/1955	2.20
08/30/1956	0.97
07/29/1957	1.71
07/02/1958	1.95
07/29/1959	1.36
06/22/1960	1.48
09/13/1961	0.86
06/08/1962	1.14
08/02/1963	1.03
07/18/1964	1.41
06/05/1965	1.14
06/09/1966	1.64
08/18/1967	1.23
08/16/1968	1.38
07/17/1969	2.04
06/02/1970	2.50
08/24/1971	1.30
08/06/1972	2.38
04/21/1973	0.87
-9/-9/-999	-9.99
06/20/1975	0.80
03/04/1976	0.96
05/16/1977	1.33
08/15/1978	1.49
06/29/1979	1.14
09/09/1980	1.44
08/14/1981	2.74
-9/-9/-999	-9.99
11/23/1983	0.91
09/24/1984	1.10
07/14/1985	3.33
09/24/1986	2.20
08/14/1987	2.30
07/16/1988	1.70
-9/-9/-999	-9.99
-9/-9/-999	-9.99
-9/-9/-999	-9.99
-9/-9/-999	-9.99
06/29/1993	1.70
07/12/1994	1.30
06/27/1995	1.40
05/19/1996	1.60
06/30/1997	0.80
06/25/1998	2.50
-9/-9/-999	-9.99
05/18/2000	1.30

Duration: 03h
09/19/1948	0.47
07/26/1949	1.29
06/02/1950	1.83
08/06/1951	1.66
07/18/1952	1.34
07/04/1953	1.37
04/25/1954	1.27
07/05/1955	2.20
08/30/1956	0.97
07/29/1957	1.80
07/02/1958	1.99
07/29/1959	1.56
06/22/1960	1.51
09/13/1961	1.29
07/02/1962	1.30
08/02/1963	1.06
07/17/1964	1.66
08/25/1965	1.21
06/09/1966	2.00
08/18/1967	1.32
08/16/1968	2.21
07/17/1969	2.27
06/02/1970	3.18
07/08/1971	1.37
08/06/1972	2.39
04/21/1973	1.05
-9/-9/-999	-9.99
06/14/1975	0.95
03/04/1976	1.21
05/16/1977	1.33
08/15/1978	1.50
06/29/1979	1.14
09/09/1980	1.62
08/14/1981	2.76
-9/-9/-999	-9.99
11/23/1983	1.01
09/24/1984	1.11
07/14/1985	4.13
09/24/1986	2.60
08/14/1987	2.50
07/16/1988	1.80
-9/-9/-999	-9.99
-9/-9/-999	-9.99
-9/-9/-999	-9.99
-9/-9/-999	-9.99
06/29/1993	2.10
07/12/1994	1.40
06/27/1995	1.50
05/19/1996	1.70
06/30/1997	0.90
06/25/1998	2.60
-9/-9/-999	-9.99
05/18/2000	2.10

Duration: 06h
09/19/1948	0.64
06/14/1949	1.57
06/13/1950	2.03
08/06/1951	1.96
07/18/1952	1.61
07/21/1953	2.14
04/25/1954	1.63
07/05/1955	2.20
08/30/1956	0.97
07/12/1957	2.86
07/02/1958	2.06
07/29/1959	2.29
06/22/1960	1.58
09/13/1961	2.29
07/02/1962	1.64
04/29/1963	1.30
07/18/1964	2.32
07/06/1965	1.60
06/09/1966	2.05
06/10/1967	1.45
08/16/1968	2.80
10/10/1969	2.79
06/01/1970	3.93
07/08/1971	1.50
07/14/1972	2.52
09/17/1973	1.58
-9/-9/-999	-9.99
07/18/1975	1.33
03/04/1976	1.55
06/11/1977	1.50
08/15/1978	1.57
06/29/1979	1.19
09/09/1980	1.62
08/14/1981	2.76
-9/-9/-999	-9.99
11/22/1983	1.08
07/10/1984	1.24
07/14/1985	4.43
09/24/1986	3.20
08/14/1987	3.20
07/16/1988	1.80
-9/-9/-999	-9.99
-9/-9/-999	-9.99
-9/-9/-999	-9.99
-9/-9/-999	-9.99
06/29/1993	2.60
07/12/1994	1.60
10/05/1995	1.60
05/19/1996	1.90
09/16/1997	1.40
06/25/1998	2.90
-9/-9/-999	-9.99
05/18/2000	2.40

Duration: 12h
09/19/1948	1.10
06/14/1949	2.15
06/02/1950	2.43
07/08/1951	2.41
07/17/1952	1.73
07/21/1953	2.14
04/24/1954	2.78
07/05/1955	2.20
04/26/1956	1.28
07/12/1957	3.30
07/02/1958	2.08
07/29/1959	2.30
10/13/1960	1.95
09/13/1961	2.70
07/02/1962	1.69
04/29/1963	1.70
07/17/1964	3.27
07/06/1965	2.06
06/09/1966	2.15
05/10/1967	1.75
08/16/1968	2.90
10/10/1969	3.05
06/01/1970	4.12
12/14/1971	1.68
07/14/1972	2.52
09/17/1973	1.81
-9/-9/-999	-9.99
07/18/1975	2.00
03/04/1976	2.49
06/11/1977	1.61
09/12/1978	1.79
06/29/1979	1.74
09/09/1980	1.62
08/14/1981	3.07
-9/-9/-999	-9.99
11/22/1983	1.29
10/18/1984	1.46
07/14/1985	4.43
09/24/1986	3.40
08/13/1987	3.90
07/16/1988	1.80
-9/-9/-999	-9.99
-9/-9/-999	-9.99
-9/-9/-999	-9.99
-9/-9/-999	-9.99
06/29/1993	2.60
07/12/1994	1.60
10/05/1995	1.70
05/19/1996	2.50
02/20/1997	1.90
06/25/1998	2.90
-9/-9/-999	-9.99
05/18/2000	2.60

Duration: 24h
09/19/1948	1.12
06/14/1949	2.30
06/02/1950	3.25
07/08/1951	2.89
07/17/1952	2.17
07/21/1953	2.19
04/24/1954	3.04
07/04/1955	2.21
04/26/1956	1.71
07/12/1957	3.30
07/02/1958	2.11
07/29/1959	3.00
01/11/1960	2.13
09/13/1961	2.95
07/02/1962	1.71
04/29/1963	2.00
07/17/1964	3.49
08/08/1965	2.22
06/09/1966	2.21
06/10/1967	1.79
08/16/1968	2.90
06/07/1969	4.05
06/01/1970	4.91
12/14/1971	1.68
08/05/1972	2.93
04/20/1973	2.18
-9/-9/-999	-9.99
07/18/1975	2.00
03/04/1976	2.83
06/11/1977	1.62
09/12/1978	2.40
06/28/1979	2.34
07/25/1980	1.94
08/14/1981	3.30
-9/-9/-999	-9.99
11/22/1983	1.29
12/31/1984	1.56
07/14/1985	5.52
09/24/1986	3.40
08/13/1987	4.30
07/16/1988	1.80
-9/-9/-999	-9.99
-9/-9/-999	-9.99
-9/-9/-999	-9.99
-9/-9/-999	-9.99
07/18/1993	2.70
06/23/1994	1.90
11/10/1995	1.80
05/19/1996	3.90
02/20/1997	2.30
10/17/1998	3.10
-9/-9/-999	-9.99
05/17/2000	2.90

Duration: 48h
09/19/1948	1.16
06/13/1949	2.80
04/23/1950	3.68
07/08/1951	2.89
07/17/1952	2.53
07/20/1953	2.81
04/24/1954	3.27
06/09/1955	2.56
04/26/1956	2.53
07/12/1957	3.30
05/30/1958	2.53
07/29/1959	3.00
01/11/1960	2.16
09/12/1961	3.56
07/02/1962	1.71
04/29/1963	2.13
07/17/1964	3.49
08/25/1965	2.56
06/09/1966	2.21
03/31/1967	2.22
06/24/1968	3.30
06/06/1969	4.12
05/31/1970	4.96
08/22/1971	1.69
09/11/1972	3.30
04/20/1973	2.48
-9/-9/-999	-9.99
06/13/1975	2.13
03/04/1976	2.83
06/11/1977	1.62
09/12/1978	3.22
06/28/1979	2.34
09/07/1980	2.02
08/26/1981	3.54
-9/-9/-999	-9.99
11/22/1983	1.29
10/18/1984	1.57
07/14/1985	5.53
09/24/1986	6.40
08/13/1987	4.40
07/16/1988	2.30
-9/-9/-999	-9.99
-9/-9/-999	-9.99
-9/-9/-999	-9.99
-9/-9/-999	-9.99
06/07/1993	3.70
06/23/1994	1.90
11/10/1995	1.80
05/19/1996	3.90
02/20/1997	2.40
06/25/1998	3.10
-9/-9/-999	-9.99
05/17/2000	3.20