Iowa frost dates: H

City	Last frost	First frost	Season	Zone
Halbur	Apr 27	Oct 10	166 d	5a
Hamburg	Apr 19	Oct 19	183 d	5b
Hamilton	Apr 20	Oct 19	182 d	5b
Hamlin	May 2	Oct 3	154 d	5a
Hampton	Apr 29	Oct 9	163 d	5a
Hancock	Apr 23	Oct 14	174 d	5b
Hanlontown	May 3	Oct 1	151 d	5a
Harcourt	Apr 26	Oct 9	166 d	5a
Hardy	Apr 26	Oct 12	169 d	5a
Harlan	Apr 27	Oct 9	165 d	5b
Harper	Apr 24	Oct 15	174 d	5b
Harpers Ferry	Apr 24	Oct 17	176 d	5a
Harris	Apr 30	Oct 10	163 d	5a
Hartford	Apr 21	Oct 15	177 d	5b
Hartley	May 1	Oct 7	159 d	5a
Hartwick	Apr 28	Oct 10	165 d	5a
Harvey	Apr 20	Oct 19	182 d	5b
Hastings	Apr 24	Oct 13	172 d	5b
Havelock	Apr 26	Oct 7	164 d	5a
Haverhill	Apr 28	Oct 7	162 d	5a
Hawarden	May 1	Oct 4	156 d	5a
Hawkeye	May 4	Oct 4	153 d	5a
Hayesville	Apr 24	Oct 15	174 d	5b
Hazleton	Apr 30	Oct 9	162 d	5a
Hedrick	Apr 23	Oct 14	174 d	5b
Henderson	Apr 23	Oct 14	174 d	5b
Hiawatha	Apr 28	Oct 12	167 d	5a
Highlandville	May 10	Sep 28	141 d	5a
Hills	Apr 29	Oct 9	163 d	5b
Hillsboro	Apr 30	Oct 10	163 d	6a
Hinton	Apr 30	Oct 4	157 d	5a
Holland	Apr 29	Oct 9	163 d	5a
Holstein	Apr 30	Oct 9	162 d	5a
Holy Cross	Apr 21	Oct 18	180 d	5a
Homestead	Apr 28	Oct 9	164 d	5b
Honey Creek	Apr 16	Oct 18	185 d	5b
Hopkinton	Apr 28	Oct 10	165 d	5a
Hornick	May 1	Oct 3	155 d	5a
Hospers	May 5	Sep 28	146 d	5a
Houghton	Apr 17	Oct 22	188 d	6a
Hubbard	Apr 27	Oct 10	166 d	5a
Hudson	Apr 27	Oct 10	166 d	5a
Hull	Apr 30	Oct 3	156 d	5a
Humboldt	Apr 27	Oct 9	165 d	5a
Humeston	Apr 30	Oct 8	161 d	5b
Huxley	Apr 26	Oct 12	169 d	5b