Table 1. Number of times average daily temperatures exceeded certain temperatures each year, 1964 to 1994, at Stoneville, MS.
Temperature, °F
Year 77 81 84 88
  ------------days------------
1964 101 67 24 2
1965 104 55 10 0
1966 78 43 17 5
1967 66 38 10 0
1968 87 60 8 0
1969 86 52 29 7
1970 112 67 20 1
1971 96 46 10 2
1972 110 63 15 0
1973 101 47 16 0
1974 73 37 8 0
1975 90 52 10 0
1976 63 31 3 0
1977 116 71 25 0
1978 105 62 26 1
1979 79 35 4 0
1980 107 82 38 12
1981 86 54 22 0
1982 93 80 4 0
1983 87 56 17 0
1984 78 33 3 0
1985 85 49 11 0
1986 113 76 21 4
1987 101 44 15 3
1988 95 58 15 0
1989 83 45 1 0
1990 101 65 30 0
1991 105 57 15 0
1992 70 31 3 0
1993 109 86 58 8
1994 95 52 16 0
Mean 93.2 54.4 16.4 1.5

Table 2. Annual temperature increase projected by Goddard Institute of Space Studies (GISS) and Geophysical Fluid Dynamics Laboratory (GFDL) global circulation models for doubled atmospheric carbon dioxide concentration scenario for major United States regions (Adams et al., 1990).
U.S. Region GISS Model GFDL Model
  ---------------°F--------------
Southeast 6.3 8.8
Delta 9.5 7.9
Northern Plains 8.5 10.6
Southern Plains 7.9 8.1
Mountain 8.8 9.5
Pacific 8.5 8.5

Table 3. Days from emergence to appearance of first square, flower, and open boll, and average temperature in parenthesis from emergence to the respective events at five temperature regimes maintained continuously relative to the outside air of Starkville, MS 1995.
Days and temperatures (°F parenthesis)
to the event
Treatment Square Flower Open Boll
1995 minues 4 °F 33 (71) 65 (74) 144 (71)
1995 plus 0 °F 26 (73) 51 (77) 101 (78)
1995 plus 4 °F 24 (76) 48 (80) 94 (81)
1995 plus 9 °F 21 (82) 42 (85) 77 (87)
1995 plus 13 °F 19 (85) 39 (88) No Fruit (90)