Precipitation annual maximum series (inches)
Station ID: 18-7272
Station name: POTOMAC FILTER PLANT
State: MD
Latitude (decimal degrees): 39.0400
Longitude (decimal degrees): 77.2542
Elevation (feet): 270

Duration: 01d
2.08	1962
3.80	1963
2.27	1964
2.28	1965
5.20	1966
3.32	1967
4.22	1968
2.82	1969
1.45	1970
3.00	1971
7.96	1972
3.20	1973
2.56	1974
2.25	1975
2.20	1976
2.36	1977
2.00	1978
4.60	1979
1.89	1980
1.47	1981
2.90	1982
2.46	1983
2.15	1984
2.53	1985
2.05	1986
3.95	1987
1.80	1988
2.56	1989
3.70	1990
2.20	1991
1.82	1992
2.72	1993
3.59	1994
2.00	1995
2.70	1996
2.78	1997
2.00	1998
2.88	1999
2.79	2000

Duration: 02d
2.10	1962
4.70	1963
2.27	1964
2.62	1965
7.75	1966
4.23	1967
4.34	1968
3.02	1969
2.37	1970
3.00	1971
9.53	1972
3.20	1973
2.84	1974
3.88	1975
2.96	1976
2.59	1977
3.26	1978
4.72	1979
1.89	1980
1.91	1981
2.96	1982
2.73	1983
2.66	1984
2.86	1985
2.26	1986
4.01	1987
2.27	1988
3.13	1989
3.80	1990
2.33	1991
2.78	1992
4.30	1993
4.05	1994
2.33	1995
3.20	1996
3.19	1997
2.80	1998
3.21	1999
3.45	2000

Duration: 04d
2.10	1962
4.80	1963
2.53	1964
2.62	1965
7.75	1966
4.67	1967
4.34	1968
3.07	1969
2.37	1970
3.21	1971
10.29	1972
3.20	1973
2.84	1974
6.00	1975
3.16	1976
3.21	1977
3.55	1978
5.50	1979
2.86	1980
1.91	1981
3.26	1982
3.46	1983
3.09	1984
2.90	1985
2.26	1986
4.61	1987
3.79	1988
3.70	1989
3.80	1990
2.36	1991
2.85	1992
4.30	1993
4.20	1994
2.33	1995
4.03	1996
3.56	1997
3.54	1998
3.21	1999
3.58	2000

Duration: 07d
3.27	1962
4.90	1963
2.56	1964
3.20	1965
8.35	1966
6.51	1967
4.85	1968
3.63	1969
2.67	1970
4.34	1971
10.51	1972
3.26	1973
3.04	1974
6.20	1975
3.40	1976
3.44	1977
3.60	1978
6.22	1979
3.05	1980
2.43	1981
3.35	1982
4.29	1983
3.79	1984
3.32	1985
2.67	1986
5.38	1987
4.42	1988
3.79	1989
4.74	1990
2.93	1991
3.23	1992
4.44	1993
4.23	1994
2.33	1995
4.77	1996
3.90	1997
3.98	1998
4.82	1999
4.41	2000

Duration: 10d
3.46	1962
5.10	1963
2.67	1964
3.79	1965
9.89	1966
6.93	1967
5.31	1968
4.71	1969
2.73	1970
4.84	1971
11.68	1972
3.85	1973
4.01	1974
6.90	1975
4.20	1976
3.74	1977
4.31	1978
6.51	1979
3.22	1980
2.56	1981
4.40	1982
5.31	1983
4.28	1984
3.63	1985
3.34	1986
6.05	1987
6.41	1988
4.39	1989
4.95	1990
3.31	1991
3.94	1992
6.45	1993
4.47	1994
2.78	1995
5.36	1996
4.68	1997
5.12	1998
4.93	1999
4.58	2000

Duration: 20d
5.49	1962
6.36	1963
3.83	1964
4.39	1965
11.00	1966
6.93	1967
5.51	1968
6.65	1969
3.97	1970
5.50	1971
14.33	1972
5.28	1973
5.09	1974
7.54	1975
6.10	1976
4.69	1977
7.03	1978
10.41	1979
4.83	1980
3.81	1981
7.27	1982
7.05	1983
5.71	1984
4.48	1985
4.35	1986
8.27	1987
8.69	1988
6.84	1989
6.44	1990
5.01	1991
4.76	1992
7.24	1993
6.45	1994
3.98	1995
7.04	1996
6.16	1997
7.07	1998
9.09	1999
6.71	2000

Duration: 30d
5.84	1962
7.09	1963
5.21	1964
5.56	1965
11.11	1966
9.79	1967
7.74	1968
8.21	1969
5.32	1970
6.93	1971
14.88	1972
7.43	1973
5.68	1974
10.38	1975
8.94	1976
6.71	1977
7.18	1978
13.57	1979
6.61	1980
4.42	1981
7.46	1982
8.69	1983
7.20	1984
6.51	1985
6.33	1986
9.06	1987
9.48	1988
7.66	1989
6.67	1990
5.36	1991
6.30	1992
8.06	1993
9.79	1994
4.78	1995
7.94	1996
8.00	1997
8.78	1998
11.67	1999
7.98	2000

Duration: 45d
6.57	1962
9.49	1963
6.85	1964
7.70	1965
11.12	1966
10.07	1967
12.21	1968
10.55	1969
6.81	1970
9.75	1971
16.57	1972
9.07	1973
7.26	1974
11.39	1975
11.61	1976
7.84	1977
10.92	1978
18.98	1979
7.77	1980
7.02	1981
7.81	1982
10.99	1983
10.06	1984
8.10	1985
8.23	1986
9.58	1987
10.07	1988
10.77	1989
8.49	1990
7.52	1991
8.09	1992
10.85	1993
11.84	1994
6.43	1995
11.98	1996
9.32	1997
12.03	1998
15.02	1999
9.95	2000

Duration: 60d
7.96	1962
9.59	1963
7.94	1964
9.02	1965
12.30	1966
12.30	1967
12.54	1968
12.70	1969
8.41	1970
11.08	1971
19.08	1972
10.98	1973
7.94	1974
12.62	1975
12.94	1976
9.05	1977
12.09	1978
22.77	1979
10.20	1980
8.13	1981
10.36	1982
13.04	1983
11.25	1984
9.40	1985
11.31	1986
10.63	1987
12.55	1988
12.79	1989
9.45	1990
8.03	1991
9.16	1992
12.49	1993
13.17	1994
7.91	1995
15.06	1996
10.42	1997
16.33	1998
17.62	1999
11.62	2000