Precipitation annual maximum series (inches)
Station ID: 18-9570
Station name: WILLIAMSPORT
State: MD
Latitude (decimal degrees): 39.6039
Longitude (decimal degrees): 77.8358
Elevation (feet): 360

Duration: 01d
2.94	1939
2.00	1940
1.60	1941
2.75	1942
2.32	1943
2.03	1944
3.30	1945
2.70	1946
3.69	1947
2.46	1948
3.15	1949
2.47	1950
1.62	1951
3.87	1952
4.12	1953
3.21	1954
2.93	1955
2.82	1956
1.28	1957
1.66	1958
1.63	1959
1.92	1960
1.36	1961
1.31	1962
2.50	1963
1.83	1964
3.84	1965
3.17	1966
2.45	1967
-9.99	1968
2.22	1969
4.16	1970
2.38	1971
4.23	1972
2.23	1973
2.30	1974
3.60	1975

Duration: 02d
3.27	1939
2.78	1940
2.18	1941
4.74	1942
2.52	1943
2.21	1944
3.82	1945
2.74	1946
3.33	1947
2.47	1948
3.62	1949
2.70	1950
2.03	1951
4.07	1952
4.12	1953
3.30	1954
3.43	1955
3.38	1956
1.61	1957
1.98	1958
2.03	1959
2.69	1960
1.79	1961
1.65	1962
3.01	1963
1.83	1964
3.84	1965
5.02	1966
2.45	1967
-9.99	1968
2.61	1969
4.92	1970
2.99	1971
6.43	1972
2.88	1973
2.51	1974
3.92	1975

Duration: 04d
3.75	1939
2.78	1940
2.60	1941
6.37	1942
2.71	1943
2.48	1944
4.51	1945
2.97	1946
3.34	1947
3.10	1948
3.77	1949
3.70	1950
2.47	1951
5.34	1952
4.14	1953
3.30	1954
3.91	1955
3.70	1956
1.61	1957
2.97	1958
2.14	1959
3.57	1960
2.48	1961
1.75	1962
3.36	1963
1.87	1964
3.84	1965
5.02	1966
2.96	1967
-9.99	1968
3.31	1969
5.35	1970
3.88	1971
7.39	1972
2.88	1973
2.51	1974
6.88	1975

Duration: 07d
3.76	1939
3.58	1940
4.43	1941
6.38	1942
2.71	1943
2.87	1944
5.68	1945
3.33	1946
6.03	1947
3.59	1948
6.05	1949
3.87	1950
3.90	1951
5.41	1952
4.14	1953
3.30	1954
5.81	1955
3.84	1956
2.32	1957
3.02	1958
2.45	1959
4.14	1960
2.63	1961
2.76	1962
4.43	1963
2.54	1964
4.50	1965
5.81	1966
2.96	1967
-9.99	1968
4.17	1969
5.54	1970
4.80	1971
7.76	1972
3.37	1973
3.55	1974
8.05	1975

Duration: 10d
4.01	1939
3.97	1940
4.44	1941
6.65	1942
3.04	1943
3.28	1944
5.81	1945
4.18	1946
6.10	1947
3.76	1948
6.62	1949
4.79	1950
4.00	1951
5.71	1952
4.22	1953
3.31	1954
6.71	1955
4.11	1956
2.75	1957
3.71	1958
3.35	1959
5.30	1960
3.05	1961
3.32	1962
4.93	1963
3.21	1964
4.50	1965
7.01	1966
4.53	1967
-9.99	1968
5.00	1969
5.99	1970
4.89	1971
8.34	1972
3.76	1973
3.56	1974
8.71	1975

Duration: 20d
5.33	1939
6.38	1940
5.86	1941
8.11	1942
4.52	1943
4.71	1944
7.18	1945
6.48	1946
7.19	1947
4.32	1948
7.14	1949
7.49	1950
6.68	1951
6.73	1952
6.05	1953
4.78	1954
9.32	1955
6.44	1956
3.21	1957
5.08	1958
4.48	1959
6.22	1960
4.50	1961
5.40	1962
5.26	1963
4.45	1964
4.86	1965
8.63	1966
5.96	1967
-9.99	1968
6.41	1969
8.43	1970
5.89	1971
11.00	1972
5.96	1973
5.44	1974
9.40	1975

Duration: 30d
7.86	1939
6.89	1940
6.39	1941
9.17	1942
5.59	1943
5.56	1944
9.68	1945
7.22	1946
8.48	1947
6.29	1948
7.91	1949
9.01	1950
8.32	1951
8.82	1952
6.80	1953
6.25	1954
10.03	1955
7.26	1956
4.56	1957
5.90	1958
5.60	1959
9.42	1960
5.92	1961
6.55	1962
6.26	1963
5.40	1964
6.62	1965
8.70	1966
7.92	1967
-9.99	1968
9.35	1969
10.38	1970
6.69	1971
11.62	1972
7.70	1973
6.43	1974
12.14	1975

Duration: 45d
9.54	1939
9.41	1940
8.79	1941
10.69	1942
7.32	1943
7.07	1944
10.43	1945
9.51	1946
10.98	1947
8.54	1948
10.34	1949
11.27	1950
9.83	1951
12.16	1952
8.13	1953
7.31	1954
10.78	1955
9.00	1956
5.80	1957
8.09	1958
7.66	1959
12.49	1960
7.81	1961
7.74	1962
7.02	1963
6.88	1964
7.64	1965
9.94	1966
10.52	1967
-9.99	1968
10.59	1969
15.50	1970
10.54	1971
12.74	1972
9.91	1973
8.01	1974
13.29	1975

Duration: 60d
11.70	1939
11.11	1940
9.92	1941
11.56	1942
9.03	1943
9.41	1944
11.81	1945
10.46	1946
15.67	1947
10.90	1948
11.63	1949
12.71	1950
10.97	1951
13.77	1952
9.96	1953
9.43	1954
12.26	1955
11.05	1956
6.83	1957
11.25	1958
8.93	1959
13.27	1960
9.77	1961
9.72	1962
8.45	1963
8.58	1964
9.00	1965
10.54	1966
12.19	1967
-9.99	1968
11.68	1969
17.90	1970
12.11	1971
16.59	1972
11.89	1973
9.28	1974
15.66	1975