Information provided by the Southeast Regional Climate Center. (Disclaimer)
Date obtained: May, 2004

                        Growing Season Summary
                   Station: ( 99141) WARRENTON                
                Years:  1971 To 2000    Missing Data:   1.9%

Base   Date of Last Spring Occurrence       Date of First Fall Occurrence
Temp Median Early  90%   10%  Late #yrs  Median Early  10%   90%   Late #yrs
 32   3/27  3/01  3/12  4/13  4/24  29    11/10 10/12 10/21 11/22 12/06  30
 30   3/19  2/22  3/04  4/07  4/20  29    11/16 10/16 11/02 12/04 12/18  30
 28   3/10  2/09  2/19  4/05  4/20  29    11/24 10/30 11/12 12/12 12/18  30
 24   2/20 12/28  1/31  3/12  3/19  29    12/16 11/10 11/27  1/20  2/10  30
 20   2/09 12/25  1/19  3/13  3/19  26    12/23 11/30 12/08  1/16  2/20  27
 16   1/29 12/22 12/24  2/17  3/04  22     1/06 12/14 12/20  2/06  2/12  23


Base           Length of Season (Days)
Temp   Median  Shortest    10%      90%   Longest  #yrs
 32      233      189      202      246      256    29
 30      239      192      212      261      279    29
 28      259      224      242      279      281    29
 24      297      259      276      340      391    29
 20      309      271      289      355      418    23
 16      342      301      309      385      390    18