New Hampshire frost dates: D

City	Last frost	First frost	Season	Zone
Danbury	May 21	Sep 26	128 d	5a
Danville	Apr 30	Oct 11	164 d	6a
Deerfield	May 7	Oct 4	150 d	6a
Derry	Apr 30	Oct 11	164 d	6a
Dover	May 3	Oct 10	160 d	6a
Drewsville	May 8	Oct 3	148 d	5b
Dublin	May 5	Oct 6	154 d	6a
Dunbarton	May 2	Oct 8	159 d	6a
Durham	May 7	Oct 4	150 d	6a