Average hard-frost dates 



* 



Based on United States Department of Agriculture Weather Records 



STATE 



Alabama, N. W. 

 Alabama, S. E. . 



Arizona, No. . 

 Arizona, So. . 



Arkansas, No. 

 Arkansas, So. 



California 



Imperial Valley 



Interior Valley 



Southern Coast 



Central Coast 



Mountain Sections .... 



Colorado, West 



Colorado, N.E 



Colorado, S.E 



Connecticut 



Delaware 



District of Columbia .... 



Florida, No 



Florida, Cen 



LAST IN 

 SPRING 



Mar. 25 

 Mar. 8 



Apr. 23 

 Mar. 1 



Apr. 7 

 Mar. 25 



Jan. 25 

 Mar. 1 

 Jan. 15 

 Feb. 25 

 Apr. 25 



May 25 

 May 11 

 May 1 



Apr. 25 



Apr. 15 



Apr. 11 



Feb. 25 

 Feb. 11 



FIRST IN 

 FALL 



Oct. 30 

 Nov. 15 



Oct 19 

 Dec. 1 



Oct. 23 

 Nov. 3 



Dec. 15 

 Nov. 15 

 Dec. 15 

 Dec. 1 

 Sept. 1 



Sept. 18 

 Sept. 27 

 Oct. 15 



Oct. 20 



Oct. 25 



Oct. 23 



Dec. 5 

 Dec. 28 



STATE 



Florida, South of Lake Okeechobee, almost frost-free 



Georgia, No. 

 Georgia, So. 



Idaho 



Illinois, No. . 

 Illinois, So. . 



Indiana, No. 

 Indiana, So. 



Iowa, No. . . 

 Iowa, So. . . . 



Kansas 



Kentucky 



Louisiana, No. 

 Louisiana, So. , 



Maine 



Maryland 



Massachusetts. 



Michigan, Upper Pen 



Michigan, No 



Michigan, So 



Minnesota, No 



Minnesota, So 



Mississippi, No 

 Mississippi, So. 



Apr. 1 

 Mar. 15 



May 21 



May 1 



Apr. 15 



May 1 

 Apr. 15 



May 1 

 Apr. 15 



Apr. 20 



Apr. 15 



Mar. 13 

 Feb. 20 



May 25 



Apr. 19 



Apr. 25 



Ma> 25 

 May 17 

 May 10 



May 25 

 May 11 



Mar. 25 

 Mar. 15 



Nov. 1 



Nov. 15 



Sept. 22 



Oct. 8 

 Oct. 20 



Oct. 8 

 Oct. 20 



Oct, 2 

 Oct. 9 



Oct. 15 



Oct. 20 



Nov. 10 

 Nov. 20 



Sept. 25 



Oct. 20 



Oct. 25 



Sept. 15 

 Sept. 25 

 Oct. 8 



Sept. 15 

 Oct. 1 



Oct. 30 

 Nov. 15 



Missouri . 



Montana 



Nebraska, W 

 Nebraska, E. 



Nevada, W. . 

 Nevada, E. . 



New Hampshire. . 



New Jersey 



New Mexico, No. . 

 New Mexico, So . . 



New York, W 



New York, E 



New York, No . . . 



N. Carolina, W. . . 

 N. Carolina, E. . . 



N. Dakota, W. . . . 

 N. Dakota, E 



Ohio, No 



Ohio, So 



Oklahoma. 



Oregon, W 



Oregon, E 



Pennsylvania, W. . 

 Pennsylvania, Cen. 

 Pennsylvania, E. . 



Rhode Island 



S. Carolina, N. W. 

 S. Carolina, S. E. . 



S. Dakota 



Tennessee 



Texas, N. W 



Texas, N. E 



Texas, So 



Utah 



Vermont 



Virginia, No. . . . 

 Virginia, So . . . . 



Washington, W. 

 Washington, E. 



W. Virginia, W. 

 W. Virginia, E. . 



Wisconsin, No. . 

 Wisconsin, So. . 



Wyoming, W. . . 

 Wyoming, E. . . 



LAST IN 



FIRST 



IN 



SPRING 



FALL 



Apr. 20 



Oct. 



20 



May 21 



Sept 



22 



May 11 



Oct. 



4 



Apr. 15 



Oct. 



15 



May 19 



Sept 



22 



June 1 



Sept 



14 



May 23 



Sept. 



25 



Apr. 20 



Oct. 



25 



Apr. 23 



Oct. 



17 



Apr. 1 



Nov. 



1 



May 10 



Oct. 



8 



May 1 



Oct. 



15 



May 15 



Oct. 



1 



Apr. 15 



Oct. 



25 



Apr. 8 



Nov. 



1 



May 21 



Sept. 



13 



May 16 



Sept. 



20 



May 6 



Oct. 



15 



Apr. 20 



Oct. 



20 



Apr. 2 



Nov. 



2 



Apr. 17 



Oct. 



25 



June 4 



Sept 



22 



Apr. 20 



Oct. 



10 



May 1 



Oct. 



15 



Apr. 17 



Oct. 



15 



Apr. 25 



Oct. 



25 



Apr. 1 



Nov. 



8 



Mar. 15 



Nov. 



15 



May 15 



Sept. 



25 



Apr. 10 



Oct. 



25 



Apr. 15 



Nov. 



1 



Mar. 21 



Nov. 



10 



Feb. 10 



Dec. 



15 



Apr. 26 



Oct. 



19 



May 23 



Sept. 



25 



Apr. 15 



Oct. 



25 



Apr. 10 



Oct. 



30 



Apr. 10 



Nov. 



15 



May 15 



Oct. 



1 



May 1 



Oct. 



15 



May 15 



Oct. 



1 



May 17 



Sept. 



25 



May 1 



Oct. 



10 



June 20 



Aug. 



20 



May 21 



Sept. 



20 



*AlIow 10 days either side of above dates to meet local conditions and seasonal differences. 



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