Allentown Dates of Last & First Frost
| Year |
Last Frost |
First Frost |
Days Between |
| |
|
|
|
| 1949 |
May 31 |
October 28 |
150 |
| 1950 |
May 10 |
October 7 |
150 |
| 1951 |
May 15 |
October 1 |
139 |
| 1952 |
April 12 |
October 4 |
175 |
| 1953 |
April 23 |
September 25 |
155 |
| 1954 |
May 8 |
October 8 |
153 |
| 1955 |
April 10 |
October 23 |
196 |
| 1956 |
May 25 |
September 21 |
119 |
| 1957 |
May 5 |
September 28 |
146 |
| 1958 |
May 11 |
October 3 |
145 |
| 1959 |
April 23 |
October 17 |
177 |
| 1960 |
May 4 |
October 2 |
151 |
| 1961 |
May 5 |
October 6 |
154 |
| 1962 |
May 11 |
September 22 |
134 |
| 1963 |
May 25 |
September 25 |
123 |
| 1964 |
May 3 |
October 6 |
156 |
| 1965 |
April 30 |
September 29 |
152 |
| 1966 |
May 12 |
October 4 |
145 |
| 1967 |
May 18 |
September 24 |
129 |
| 1968 |
May 8 |
October 6 |
151 |
| 1969 |
April 22 |
October 17 |
178 |
| 1970 |
May 8 |
October 6 |
151 |
| 1971 |
April 27 |
November 5 |
192 |
| 1972 |
May 11 |
October 2 |
144 |
| 1973 |
May 20 |
October 20 |
153 |
| 1974 |
May 9 |
September 24 |
138 |
| 1975 |
April 24 |
October 4 |
163 |
| 1976 |
May 13 |
October 12 |
152 |
| 1977 |
April 30 |
October 19 |
172 |
| 1978 |
May 5 |
October 11 |
159 |
| 1979 |
April 21 |
October 11 |
173 |
| 1980 |
April 23 |
October 30 |
190 |
| 1981 |
May 10 |
October 11 |
154 |
| 1982 |
April 24 |
October 12 |
171 |
| 1983 |
May 19 |
October 22 |
156 |
| 1984 |
April 23 |
October 6 |
166 |
| 1985 |
May 10 |
October 13 |
156 |
| 1986 |
May 5 |
October 8 |
156 |
| 1987 |
April 28 |
October 10 |
165 |
| 1988 |
April 27 |
October 8 |
164 |
| 1989 |
April 25 |
September 29 |
157 |
| 1990 |
May 13 |
September 19 |
129 |
| 1991 |
April 13 |
October 10 |
180 |
| 1992 |
May 7 |
October 1 |
147 |
| 1993 |
April 29 |
October 1 |
155 |
| 1994 |
April 24 |
October 7 |
166 |
| 1995 |
April 18 |
October 19 |
184 |
| 1996 |
May 14 |
October 3 |
142 |
| 1997 |
May 9 |
September 23 |
137 |
| 1998 |
April 30 |
September 25 |
148 |
Last Updated on 7/6/00