The Study of Frost Occurrence in Free State Province of South Africa
Table 6
Trends in frost indices for Free State province of South Africa.
Station
Cessation of frost
Onset of frost
Frost-free duration
2°C
0°C
−2°C
2°C
0°C
−2°C
2°C
0°C
−2°C
Bethlehem
Neg
Neg
Neg
Pos
Pos
Pos
Pos
Pos
Pos
Bloemfontein
Neg
Neg
Neg
Pos
Pos
Pos
Pos
Pos
Pos
Bothaville
Neg
Neg
Neg
Neg
Pos
Neg
Neg
Pos
Neg
Fauresmith
Neg
Neg
Neg
Pos
Pos
Pos
Pos
Pos
Pos
Ficksburg
Pos
Pos
Pos
Neg
Neg
Neg
Neg
Neg
Neg
Frankfort
Neg
Neg
Neg
Pos
Pos
Neg
Pos
Pos
Neg
Virginia
Pos
Pos
Pos
Neg
Neg
Neg
Neg
Neg
Neg
Wepener
Neg
Neg
Neg
Pos
Pos
Pos
Pos
Pos
Pos
Zastron
Pos
Neg
Neg
Neg
Neg
Neg
Neg
Neg
Pos
Pos = positive; Neg = negative; significant at 5%; significant at 10%; not significant.
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