Frost Dates for Selected Cities

This table shows the average last frost in spring, the first frost in autumn and the length of the growing season for selected U.S. cities.

Alabama Birmingham Mar 29 Nov 6 221 days Mobile Feb 27 Nov 26 272 days Alaska Juneau May 16 Sep 28 133 days Arizona Flagstaff Jun 13 Sep 21 99 day Phoenix Feb 5 Dec 15 308 days Tucson Feb 28 Nov 29 273 days Arkansas Fayetteville Apr 21 Oct 17 179 days Little Rock Mar 23 Nov 9 230 days Pine Bluff Mar 19 Nov 8 234 days California Eureka Jan 30 Dec 15 324 days Fresno Feb 22 Nov 25 273 days Los Angeles Not likely Not likely 365 days Sacramento Feb 14 Dec 1 289 days San Bernardino Feb 23 Dec 8 294 days San Diego None None 365 days San Francisco Jan 8 Jan 5 362 days San Jose Jan 22 Dec 25 338 days Santa Rosa Mar 25 Nov 19 236 days Colorado Denver May 3 Oct 8 157 days Durango Jun 4 Sep 18 105 days Connecticut Hartford Apr 25 Oct 10 167 days New Haven Apr 15 Oct 27 195 days Delaware Wilmington Apr 13 Oct 29 198 days D. C. Washington Apr 10 Oct 31 203 days Florida Avon Park Mar 1 Dec 6 282 days Fort Lauderdale Feb 1 Jan 16 350 days Gainesville Mar 29 Nov 5 221 days Jacksonville Feb 14 Nov 16 303 days Miami None None 365 days Orlando Jan 31 Dec 17 320 days Tallahassee Mar 12 Nov 14 246 days Tampa Feb 25 Dec 3 338 days Georgia Athens Mar 28 Nov 8 224 days Atlanta Mar 13 Nov 12 243 days Savannah Mar 10 Nov 15 250 days Idaho Boise May 8 Oct 9 153 days Pocatello May 20 Sep 20 122 days Illinois Chicago Apr 14 Nov 2 201 days Springfield Apr 17 Oct 19 185 days Indiana Indianapolis Apr 22 Oct 20 180 days South Bend May 1 Oct 18 169 days Iowa Cedar Rapids Apr 29 Oct 7 161 days Des Moines Apr 19 Oct 17 180 days Kansas Manhattan Apr 23 Oct 16 176 days Topeka Apr 21 Oct 14 175 days Wichita Apr 13 Oct 23 193 days Kentucky Lexington Apr 17 Oct 25 190 days Louisville Apr 1 Nov 7 220 days Louisiana Monroe Mar 9 Nov 7 242 days New Orleans Feb 20 Dec 5 288 days Maine Portland May 10 Sep 30 143 days Maryland Baltimore Mar 26 Nov 13 231 days Massachusetts Amherst May 9 Sep 29 142 days Boston Apr 6 Nov 10 217 days Worcester Apr 27 Oct 17 172 days Michigan Detroit Apr 24 Oct 22 181 days Lansing May 13 Sep 30 140 days Marquette May 12 Oct 19 159 days Minnesota Duluth May 21 Sep 21 122 days Minneapolis Apr 30 Oct 13 166 days Mississippi Columbus Mar 27 Oct 29 215 days Jackson Mar 17 Nov 9 236 days Vicksburg Mar 13 Nov 18 250 days Missouri Jefferson City Apr 28 Oct 16 173 days St. Louis Apr 3 Nov 6 217 days Montana Billings May 12 Sep 23 133 days Helena May 18 Sep 18 122 days Nebraska Lincoln Mar 13 Nov 13 180 days Nevada Las Vegas Mar 7 Nov 21 259 days New Hampshire Concord May 23 Sep 22 121 days New Jersey Newark Apr 4 Nov 10 219 days Trenton Apr 6 Nov 7 214 days New Mexico Albuquerque Apr 16 Oct 29 196 days Los Alamos May 8 Oct 13 157 days New York Albany May 7 Sep 29 144 days New York Apr 1 Nov 11 233 days Rochester May 3 Oct 15 164 days Syracuse Apr 28 Oct 16 170 days North Carolina Asheville Apr 10 Oct 24 195 days Charlotte Mar 21 Nov 15 239 days Fayetteville Apr 2 Oct 31 212 days Raleigh Apr 11 Oct 27 198 days North Dakota Bismarck May 14 Sep 20 129 days Fargo May 13 Sep 27 137 days Ohio Akron May 3 Oct 18 168 days Cincinnati Apr 14 Oct 27 195 days Columbus Apr 26 Oct 17 173 days Oklahoma Oklahoma City Mar 28 Nov 7 224 days Tulsa Mar 30 Nov 4 218 days Oregon Portland Apr 3 Nov 7 217 days Pennsylvania Pittsburgh Apr 16 Nov 3 201 days State College Apr 27 Oct 15 170 days Rhode Island Kingston May 8 Sep 30 144 days South Carolina Charleston Mar 11 Nov 20 253 days Columbia Apr 4 Nov 2 211 days South Dakota Rapid City May 7 Sep 29 145 days Tennessee Memphis Mar 23 Nov 7 228 days Nashville Apr 5 Oct 29 207 days Texas Dallas Mar 18 Nov 12 239 days Houston Feb 4 Dec 10 309 days San Antonio Mar 3 Nov 24 265 days Utah Salt Lake Apr 12 Nov 1 203 days Vermont Burlington May 11 Oct 1 142 days Virginia Norfolk Mar 23 Nov 17 239 days Richmond Apr 10 Oct 26 198 days Washington Seattle Mar 24 Nov 11 232 days Spokane May 4 Oct 5 153 days West Virginia Parkersburg Apr 25 Oct 18 175 days Wisconsin Green Bay May 12 Oct 2 143 days Milwaukee May 5 Oct 9 156 days Wyoming Casper May 22 Sep 22 123 days Cheyenne May 20 Sep 27 130 days	A Frosty Garden
	Cabbage (Brassica oleracea var. capitata) Frost never hurts cabbage!
	Oregano (Origanum vulgare) Oregano can take a light frost, too.
	Garden Peas (Pisum sativum) Frost will usually kill pea blossoms, but once the pods have formed a light frost does no harm.

Steve Christman 01/23/01; updated 2/15/04