Lows of Zero or Below in Philadelphia

Month	Day	Year	High	Low	Rain	Snow
2	9	1934	10	-11	0.00	0.0
1	17	1982	13	-7	0.00	0.0
1	22	1984	20	-7	0.00	0.0
2	10	1899	5	-6	0.00	0.0
2	11	1899	10	-6	0.00	0.0
1	21	1985	8	-6	0.00	0.0
1	10	1875	12	-5	0.00	0.0
12	30	1880	5	-5	0.00	0.0
1	29	1963	21	-5	0.00	0.0
1	19	1994	6	-5	0.00	0.0
12	30	1917	10	-4	0.00	0.0
1	21	1961	20	-4	0.00	0.0
2	2	1961	16	-4	0.00	0.0
1	17	1977	8	-4	0.00	0.0
1	18	1982	15	-4	0.00	0.0
1	3	1879	12	-3	0.00	0.0
2	6	1895	9	-3	0.00	0.0
1	18	1977	12	-3	0.00	0.0
1	20	1984	17	-3	0.00	0.0
1	21	1984	13	-3	0.00	0.0
2	5	1886	13	-2	0.00	0.0
2	17	1896	16	-2	0.00	0.0
1	5	1904	14	-2	0.00	0.0
2	5	1918	9	-2	0.00	0.0
2	8	1934	27	-2	0.00	0.0
1	23	1936	16	-2	0.00	0.2
1	25	1963	18	-2	0.00	0.0
2	11	1979	14	-2	0.00	0.0
2	10	1875	20	-1	0.00	0.0
2	2	1881	13	-1	0.00	0.0
2	8	1895	9	-1	0.43	4.3
2	9	1899	11	-1	0.00	0.0
12	29	1917	12	-1	0.11	1.0
2	10	1979	18	-1	0.00	0.0
1	20	1985	22	-1	0.11	1.1
12	31	1880	14	0	0.00	0.0
1	24	1882	18	0	0.00	0.0
2	11	1885	15	0	0.00	0.0
1	16	1893	14	0	0.00	0.0
1	19	1904	15	0	0.00	0.0
1	13	1912	12	0	0.00	0.0
1	14	1914	20	0	0.00	0.0
1	16	1977	22	0	0.12	1.4
2	18	1979	14	0	0.02	0.4
1	13	1981	20	0	0.00	0.0