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.