Precipitation annual maximum series (inches)
Station ID: 18-9030
Station name: UNIONVILLE
State: MD
Latitude (decimal degrees): 39.4500
Longitude (decimal degrees): 77.1833
Elevation (feet): 430

Duration: 01d
4.20	1940
2.78	1941
4.80	1942
2.48	1943
3.34	1944
2.35	1945
3.87	1946
1.69	1947
2.25	1948
2.55	1949
3.00	1950
2.62	1951
2.78	1952
1.54	1953
2.07	1954
4.80	1955
3.96	1956
2.15	1957
1.44	1958
1.98	1959
1.56	1960
1.25	1961
1.55	1962
2.20	1963
2.09	1964
2.56	1965
7.15	1966
1.43	1967
2.40	1968
2.00	1969
2.07	1970
2.73	1971
8.58	1972
2.28	1973
2.09	1974
3.56	1975
1.71	1976
2.10	1977
1.98	1978
4.06	1979
2.19	1980
1.95	1981
2.50	1982
2.24	1983
3.32	1984
2.80	1985
1.59	1986
1.80	1987
2.06	1988
2.59	1989
2.49	1990
3.40	1991
2.86	1992
6.06	1993
1.54	1994
2.04	1995
2.60	1996

Duration: 01h
05/24/1948	1.60
08/12/1949	0.66
11/25/1950	1.20
08/10/1951	2.05
05/25/1952	1.65
11/23/1953	1.02
05/03/1954	1.17
08/30/1955	1.52
07/04/1956	2.07
12/20/1957	0.76
07/31/1958	0.87
08/23/1959	1.17
07/13/1960	1.01
07/15/1961	0.77
06/05/1962	0.81
06/07/1963	1.02
08/03/1964	1.13
05/27/1965	1.05
09/14/1966	1.20
07/20/1967	0.85
-9/-9/-999	-9.99
07/27/1969	1.50
06/26/1970	1.60
07/29/1971	1.20
06/21/1972	1.50
06/04/1973	0.80
09/12/1974	1.50
09/26/1975	0.90
06/19/1976	1.00
06/17/1977	1.30
08/31/1978	1.50
10/01/1979	1.40
07/22/1980	0.70
07/28/1981	0.80
07/27/1982	1.20
06/20/1983	2.10
10/22/1984	1.40
07/15/1985	1.30
07/20/1986	1.30
06/03/1987	1.40
03/26/1988	0.50
05/06/1989	0.60
06/18/1990	1.10
08/19/1991	1.80
07/25/1992	1.30
08/11/1993	1.00
-9/-9/-999	-9.99
-9/-9/-999	-9.99
-9/-9/-999	-9.99

Duration: 02d
4.20	1940
2.89	1941
5.77	1942
2.98	1943
4.70	1944
3.01	1945
5.70	1946
2.36	1947
2.62	1948
3.72	1949
3.02	1950
3.90	1951
4.20	1952
2.12	1953
2.39	1954
6.62	1955
4.84	1956
3.21	1957
1.83	1958
2.00	1959
2.50	1960
2.24	1961
1.88	1962
2.63	1963
2.18	1964
2.65	1965
7.85	1966
2.57	1967
2.71	1968
2.10	1969
2.40	1970
3.86	1971
10.28	1972
2.62	1973
3.23	1974
6.17	1975
2.59	1976
2.67	1977
2.73	1978
5.21	1979
2.73	1980
1.95	1981
3.33	1982
3.70	1983
3.65	1984
2.80	1985
2.02	1986
3.20	1987
3.38	1988
3.27	1989
2.49	1990
4.66	1991
3.30	1992
7.01	1993
2.23	1994
2.28	1995
3.92	1996

Duration: 02h
05/24/1948	2.32
07/30/1949	0.71
11/25/1950	1.52
08/10/1951	2.45
05/25/1952	1.75
11/23/1953	1.05
07/14/1954	1.50
08/30/1955	2.14
07/04/1956	2.85
12/20/1957	1.21
09/17/1958	0.99
08/23/1959	1.17
07/13/1960	1.06
07/15/1961	0.97
07/18/1962	1.02
06/07/1963	1.02
08/03/1964	1.16
07/11/1965	1.18
09/14/1966	2.15
07/20/1967	0.93
-9/-9/-999	-9.99
07/27/1969	1.80
07/15/1970	1.70
07/29/1971	1.30
06/21/1972	2.50
08/18/1973	1.20
09/12/1974	1.80
09/26/1975	1.40
07/08/1976	1.10
08/17/1977	2.10
08/31/1978	1.60
10/01/1979	1.80
07/22/1980	1.10
06/13/1981	1.00
07/27/1982	2.20
06/20/1983	2.10
10/22/1984	2.70
07/15/1985	1.70
07/20/1986	1.50
06/03/1987	1.50
07/23/1988	1.00
05/05/1989	1.00
06/18/1990	1.40
08/19/1991	2.40
07/25/1992	1.80
08/11/1993	1.10
-9/-9/-999	-9.99
-9/-9/-999	-9.99
-9/-9/-999	-9.99

Duration: 03h
05/24/1948	2.40
07/12/1949	0.98
11/25/1950	1.93
08/10/1951	2.45
05/25/1952	1.92
09/05/1953	1.15
07/14/1954	1.55
08/30/1955	2.19
07/04/1956	3.16
12/20/1957	1.56
09/17/1958	1.00
08/23/1959	1.17
07/13/1960	1.08
07/15/1961	0.97
07/18/1962	1.05
06/07/1963	1.02
07/12/1964	1.45
07/11/1965	1.23
09/14/1966	2.85
06/30/1967	1.14
-9/-9/-999	-9.99
07/27/1969	1.80
07/15/1970	1.70
08/03/1971	1.90
06/21/1972	3.20
08/18/1973	1.30
09/12/1974	1.80
09/26/1975	1.70
06/19/1976	1.10
08/17/1977	2.10
08/31/1978	1.60
10/01/1979	2.50
07/22/1980	1.20
06/13/1981	1.40
07/27/1982	2.40
06/20/1983	2.10
10/22/1984	3.30
07/15/1985	1.80
07/20/1986	1.50
06/03/1987	1.60
07/23/1988	1.00
05/05/1989	1.30
10/18/1990	1.50
08/19/1991	2.50
07/25/1992	2.10
11/27/1993	1.40
-9/-9/-999	-9.99
-9/-9/-999	-9.99
-9/-9/-999	-9.99

Duration: 04d
4.20	1940
4.21	1941
6.02	1942
3.65	1943
4.92	1944
4.18	1945
5.94	1946
3.30	1947
2.62	1948
4.06	1949
3.07	1950
4.26	1951
5.98	1952
2.36	1953
2.39	1954
7.73	1955
5.82	1956
3.92	1957
2.26	1958
2.21	1959
3.15	1960
2.48	1961
2.20	1962
2.63	1963
2.31	1964
2.65	1965
7.97	1966
3.83	1967
4.46	1968
3.08	1969
2.40	1970
4.65	1971
11.82	1972
2.92	1973
3.25	1974
8.90	1975
3.71	1976
3.31	1977
3.50	1978
5.21	1979
2.73	1980
2.67	1981
3.36	1982
5.23	1983
3.65	1984
2.80	1985
2.30	1986
4.05	1987
3.98	1988
3.73	1989
3.04	1990
5.60	1991
4.81	1992
7.41	1993
2.84	1994
3.17	1995
4.71	1996

Duration: 06h
05/24/1948	2.40
07/12/1949	1.35
11/25/1950	2.52
08/10/1951	2.45
08/31/1952	2.44
09/05/1953	1.67
05/03/1954	2.06
08/12/1955	2.42
07/04/1956	3.45
12/20/1957	1.82
04/06/1958	1.07
08/08/1959	1.52
09/12/1960	1.27
07/16/1961	1.10
07/18/1962	1.05
09/29/1963	1.69
07/12/1964	1.70
07/11/1965	1.40
09/14/1966	4.13
06/30/1967	1.40
-9/-9/-999	-9.99
07/27/1969	1.80
06/26/1970	2.10
08/03/1971	2.70
06/21/1972	5.60
09/14/1973	1.70
09/12/1974	1.80
09/25/1975	2.20
06/19/1976	1.40
08/17/1977	2.10
08/31/1978	1.70
10/01/1979	3.90
10/25/1980	1.70
06/13/1981	1.60
07/27/1982	3.20
06/20/1983	2.10
10/22/1984	3.30
09/27/1985	2.10
04/15/1986	1.70
09/08/1987	1.90
01/19/1988	1.00
05/05/1989	1.80
10/18/1990	1.70
08/19/1991	2.90
07/25/1992	2.60
11/27/1993	2.50
-9/-9/-999	-9.99
-9/-9/-999	-9.99
-9/-9/-999	-9.99

Duration: 07d
4.25	1940
4.40	1941
8.89	1942
3.88	1943
4.92	1944
4.91	1945
9.92	1946
3.77	1947
2.66	1948
4.86	1949
3.51	1950
5.02	1951
6.86	1952
3.44	1953
3.62	1954
8.41	1955
5.99	1956
4.45	1957
2.49	1958
2.24	1959
3.15	1960
2.84	1961
2.57	1962
3.31	1963
3.06	1964
2.67	1965
8.61	1966
4.02	1967
5.00	1968
3.95	1969
3.19	1970
7.30	1971
12.15	1972
4.45	1973
3.73	1974
9.72	1975
4.07	1976
3.49	1977
3.61	1978
5.28	1979
2.92	1980
2.67	1981
3.79	1982
5.60	1983
4.28	1984
3.57	1985
3.51	1986
4.05	1987
4.38	1988
4.93	1989
4.08	1990
5.62	1991
5.09	1992
7.41	1993
3.01	1994
3.24	1995
5.52	1996

Duration: 10d
5.46	1940
4.46	1941
9.10	1942
4.96	1943
5.92	1944
5.04	1945
10.26	1946
4.58	1947
4.76	1948
5.16	1949
4.92	1950
5.70	1951
6.86	1952
4.57	1953
3.62	1954
9.42	1955
5.99	1956
4.81	1957
3.54	1958
3.12	1959
3.63	1960
3.13	1961
3.08	1962
3.44	1963
3.67	1964
2.98	1965
9.41	1966
4.41	1967
5.83	1968
5.34	1969
4.09	1970
8.43	1971
13.24	1972
4.91	1973
4.31	1974
10.44	1975
6.14	1976
4.96	1977
4.61	1978
7.36	1979
3.32	1980
3.93	1981
4.25	1982
5.60	1983
4.28	1984
3.57	1985
4.19	1986
4.48	1987
5.18	1988
5.67	1989
4.12	1990
5.66	1991
5.39	1992
10.71	1993
3.81	1994
3.70	1995
5.98	1996

Duration: 12h
05/24/1948	2.40
07/12/1949	2.15
11/24/1950	2.91
08/10/1951	2.45
05/25/1952	2.93
12/06/1953	2.09
05/03/1954	2.27
08/12/1955	3.79
07/04/1956	3.59
12/20/1957	2.06
11/28/1958	1.34
08/08/1959	1.64
09/11/1960	1.73
04/09/1961	1.20
07/18/1962	1.36
09/29/1963	1.77
08/03/1964	1.82
07/10/1965	2.15
09/14/1966	5.91
08/26/1967	1.49
-9/-9/-999	-9.99
07/27/1969	1.80
06/26/1970	2.10
08/03/1971	2.70
06/21/1972	7.80
09/14/1973	2.20
12/01/1974	2.10
09/25/1975	2.90
10/08/1976	1.70
08/17/1977	2.10
07/03/1978	1.80
09/05/1979	4.70
10/25/1980	2.10
06/13/1981	1.80
07/27/1982	3.20
06/20/1983	2.20
10/22/1984	3.30
09/26/1985	2.70
04/15/1986	1.90
09/08/1987	2.40
01/19/1988	1.30
05/05/1989	2.10
05/10/1990	2.10
08/19/1991	3.00
07/24/1992	2.80
11/27/1993	3.90
-9/-9/-999	-9.99
-9/-9/-999	-9.99
-9/-9/-999	-9.99

Duration: 20d
5.82	1940
5.59	1941
10.70	1942
7.90	1943
6.14	1944
8.58	1945
12.31	1946
6.35	1947
5.45	1948
6.05	1949
6.20	1950
6.33	1951
9.09	1952
5.12	1953
5.98	1954
11.66	1955
11.08	1956
5.40	1957
4.94	1958
4.09	1959
3.90	1960
4.58	1961
4.62	1962
4.53	1963
4.09	1964
4.12	1965
10.75	1966
5.37	1967
6.42	1968
7.03	1969
7.64	1970
9.59	1971
14.85	1972
6.52	1973
8.18	1974
11.43	1975
6.52	1976
5.76	1977
7.20	1978
10.28	1979
5.15	1980
5.74	1981
6.58	1982
6.61	1983
5.99	1984
4.58	1985
5.58	1986
6.18	1987
6.57	1988
7.70	1989
6.11	1990
7.18	1991
5.97	1992
11.12	1993
5.56	1994
5.65	1995
8.74	1996

Duration: 24h
05/24/1948	2.40
07/12/1949	2.74
11/24/1950	3.01
06/09/1951	2.61
05/25/1952	3.24
12/06/1953	2.11
05/03/1954	2.27
08/12/1955	5.86
07/03/1956	4.19
12/20/1957	2.33
07/31/1958	1.60
06/02/1959	1.77
09/11/1960	1.97
07/16/1961	1.38
07/18/1962	1.38
09/29/1963	1.77
08/02/1964	2.00
07/10/1965	2.32
09/13/1966	7.13
03/06/1967	1.84
-9/-9/-999	-9.99
07/27/1969	1.90
06/26/1970	2.10
07/29/1971	2.80
06/21/1972	9.40
09/14/1973	2.30
12/01/1974	2.30
09/25/1975	4.20
06/19/1976	1.90
12/17/1977	2.20
07/02/1978	2.10
09/05/1979	5.10
10/25/1980	2.10
06/13/1981	2.00
07/27/1982	3.20
06/19/1983	3.50
10/22/1984	3.30
09/26/1985	2.70
04/15/1986	2.10
11/28/1987	2.50
05/17/1988	1.80
05/05/1989	2.80
10/22/1990	2.20
08/19/1991	4.60
07/24/1992	3.20
11/27/1993	4.30
-9/-9/-999	-9.99
-9/-9/-999	-9.99
-9/-9/-999	-9.99

Duration: 30d
6.82	1940
6.36	1941
12.91	1942
10.37	1943
6.59	1944
10.07	1945
13.26	1946
7.42	1947
7.51	1948
7.34	1949
6.90	1950
7.79	1951
10.65	1952
7.00	1953
8.01	1954
13.53	1955
13.12	1956
6.63	1957
6.68	1958
5.78	1959
4.92	1960
5.85	1961
5.72	1962
6.79	1963
6.15	1964
4.93	1965
10.78	1966
7.01	1967
7.75	1968
8.59	1969
9.08	1970
11.26	1971
16.88	1972
7.68	1973
9.32	1974
14.29	1975
9.11	1976
7.29	1977
7.43	1978
12.99	1979
6.58	1980
7.59	1981
7.75	1982
8.70	1983
7.43	1984
5.85	1985
7.72	1986
7.04	1987
8.32	1988
8.58	1989
7.50	1990
7.52	1991
7.18	1992
12.01	1993
7.57	1994
7.18	1995
12.30	1996

Duration: 45d
9.37	1940
9.29	1941
15.38	1942
11.17	1943
7.98	1944
14.27	1945
13.98	1946
9.40	1947
10.43	1948
8.80	1949
7.99	1950
9.93	1951
15.31	1952
8.40	1953
8.71	1954
14.15	1955
14.69	1956
7.64	1957
9.04	1958
7.21	1959
7.18	1960
7.92	1961
7.18	1962
7.95	1963
6.86	1964
6.34	1965
12.33	1966
8.78	1967
10.53	1968
9.72	1969
11.70	1970
12.51	1971
18.55	1972
9.95	1973
10.36	1974
16.72	1975
11.94	1976
7.70	1977
11.42	1978
16.73	1979
9.00	1980
9.87	1981
9.42	1982
10.68	1983
9.77	1984
7.65	1985
9.18	1986
7.92	1987
9.25	1988
10.90	1989
8.81	1990
9.05	1991
8.87	1992
13.60	1993
9.75	1994
10.02	1995
17.27	1996

Duration: 48h
05/24/1948	2.50
07/12/1949	2.76
11/24/1950	3.01
08/10/1951	3.86
04/26/1952	4.53
12/04/1953	2.25
05/02/1954	2.35
08/11/1955	7.39
07/20/1956	4.87
12/19/1957	2.43
05/05/1958	1.61
08/22/1959	1.74
09/10/1960	2.47
07/15/1961	2.12
02/26/1962	1.76
11/05/1963	2.12
07/12/1964	2.30
07/10/1965	2.39
09/13/1966	7.52
03/05/1967	2.12
-9/-9/-999	-9.99
07/25/1969	2.50
07/09/1970	2.20
08/03/1971	3.80
06/21/1972	10.78
09/14/1973	2.30
09/12/1974	2.90
09/24/1975	6.40
10/08/1976	2.80
12/17/1977	2.50
05/13/1978	2.70
09/05/1979	5.10
10/25/1980	2.10
06/13/1981	2.00
07/27/1982	3.20
06/19/1983	3.60
10/22/1984	3.70
09/26/1985	2.70
04/15/1986	2.20
11/27/1987	2.90
05/17/1988	2.44
05/05/1989	3.10
10/22/1990	2.40
08/19/1991	4.80
07/23/1992	4.00
11/27/1993	4.30
-9/-9/-999	-9.99
-9/-9/-999	-9.99
-9/-9/-999	-9.99

Duration: 60d
10.66	1940
10.23	1941
17.52	1942
11.65	1943
9.93	1944
15.37	1945
17.14	1946
11.38	1947
12.12	1948
10.09	1949
9.41	1950
11.69	1951
16.96	1952
10.77	1953
10.57	1954
16.17	1955
16.93	1956
9.26	1957
10.69	1958
7.54	1959
8.12	1960
9.77	1961
9.64	1962
8.75	1963
7.57	1964
8.20	1965
12.92	1966
11.97	1967
11.14	1968
12.16	1969
12.83	1970
14.74	1971
20.86	1972
11.13	1973
11.18	1974
18.63	1975
14.83	1976
8.88	1977
13.20	1978
20.04	1979
10.55	1980
11.89	1981
12.35	1982
13.00	1983
11.32	1984
8.85	1985
12.07	1986
10.25	1987
11.02	1988
14.22	1989
10.99	1990
9.83	1991
10.82	1992
15.65	1993
12.42	1994
12.99	1995
20.80	1996