Last Frost Date Chart by City

A reference for gardeners and flower lovers.  This chart contains the first and last frost date for the United States.

City State Growing Season
(Length in Days)
Last Frost
Spring
First Frost
Fall
Mobile AL 272 Feb. 27 Nov. 26
Juneau AK 133 May 16 Sept. 26
Phoenix AZ 308 Feb. 5 Dec. 15
Tucson AZ 273 Feb. 28 Nov. 29
Pine Bluff AR 234 Mar. 19 Nov. 8
Eureka CA 324 Jan. 30 Dec. 15
Sacramento CA 289 Feb. 14 Dec. 1
San Francisco CA * * *
Denver CO 157 May 3 Oct. 8
Hartford CT 167 Apr. 25 Oct. 10
Wilmington DE 198 Apr. 13 Oct. 29
Miami FL * * *
Tampa FL 338 Jan. 28 Jan. 3
Athens GA 224 Mar. 28 Nov. 8
Savannah GA 250 Mar. 10 Nov. 15
Boise ID 153 May 8 Oct. 9
Chicago IL 187 Apr. 22 Oct. 26
Springfield IL 185 Apr. 17 Oct. 19
Indianapolis IN 180 Apr. 22 Oct. 20
South Bend IN 169 May 1 Oct. 18
Atlantic IA 141 May 9 Sept. 28
Cedar Rapids IA 161 Apr. 29 Oct. 7
Topeka KS 175 Apr. 21 Oct. 14
Lexington KY 190 Apr. 17 Oct. 25
Monroe LA 242 Mar. 9 Nov. 7
New Orleans LA 288 Feb. 20 Dec. 5
Portland ME 143 May 10 Sept. 30
Baltimore MD 231 Mar. 26 Nov. 13
Worcester MA 172 Apr. 27 Oct. 17
Lansing MI 140 May 13 Sept. 30
Marquette MI 159 May 12 Oct. 19
Duluth MN 122 May 21 Sept. 21
Willmar MN 152 May 4 Oct. 4
Columbus MS 215 Mar. 27 Oct. 29
Vicksburg MS 250 Mar. 13 Nov. 18
Jefferson City MO 173 Apr. 26 Oct. 16
Fort Peck MT 146 May 5 Sept. 28
Helena MT 122 May 18 Sept. 18
Blair NE 165 Apr. 27 Oct. 10
North Platte NE 136 May 11 Sept. 24
Las Vegas NV 259 Mar. 7 Nov. 21
Concord NH 121 May 23 Sept. 22
Newark NJ 219 Apr. 4 Nov. 10
Carlsbad NM 223 Mar. 29 Nov. 7
Los Alamos NM 157 May 8 Oct. 13
Albany NY 144 May 7 Sept. 29
Syracuse NY 170 Apr. 28 Oct. 16
Fayetteville NC 212 Apr. 2 Oct. 31
Bismarck ND 129 May 14 Sept. 20
Akron OH 168 May 3 Oct. 18
Cincinnati OH 195 Apr. 14 Oct. 27
Lawton OK 217 Apr. 1 Nov. 5
Tulsa OK 218 Mar. 30 Nov. 4
Pendleton OR 188 Apr. 15 Oct. 21
Portland OR 217 Apr. 3 Nov. 7
Carlisle PA 182 Apr. 20 Oct. 20
Williamsport PA 168 Apr. 29 Oct. 15
Kingston RI 144 May 8 Sept. 30
Charleston SC 253 Mar. 11 Nov. 20
Columbia SC 211 Apr. 4 Nov. 2
Rapid City SD 145 May 7 Sept. 29
Memphis TN 228 Mar. 23 Nov. 7
Nashville TN 207 Apr. 5 Oct. 29
Amarillo TX 197 Apr. 14 Oct. 29
Denton TX 231 Mar. 25 Nov. 12
San Antonio TX 265 Mar. 3 Nov. 24
Cedar City UT 134 May 20 Oct. 2
Spanish Fork UT 156 May 8 Oct. 12
Burlington VT 142 May 11 Oct. 1
Norfolk VA 239 Mar. 23 Nov. 17
Richmond VA 198 Apr. 10 Oct. 26
Seattle WA 232 Mar. 24 Nov. 11
Spokane WA 153 May 4 Oct. 5
Parkersburg WV 175 Apr. 25 Oct. 18
Green Bay WI 143 May 12 Oct. 2
Janesville WI 164 Apr. 28 Oct. 10
Casper WY 123 May 22 Sept. 22

*No annual frost data

 

** 50% chance of frost after last date

 

Source: National Climatic Center