Canada's Plant Hardiness Site

	1961-1990 zone	1981-2010 zone	1961-1990 hardiness index	1981-2010 hardiness index
Aberfoyle	5a	5b	54	58
Actinolite	5a	5b	50	56
Acton	5a	5b	52	56
Ailsa Craig	6a	6b	61	65
Ajax	5b	6b	59	66
Alban	4a	4b	42	48
Alcona	5a	5b	53	57
Alexandria	5a	5a	50	54
Alfred	4b	5a	48	53
Allenford	5b	6a	55	60
Alliston	5a	5b	52	57
Alma	5a	5b	50	56
Almonte	4b	5a	47	54
Alvinston	6a	6b	62	65
Ameliasburg	5b	6a	58	63
Amherstburg	6b	7a	68	71
Angus	5a	5b	54	57
Anten Mills	5a	5b	54	58
Apple Hill	5a	5a	50	54
Apsley	4a	5a	44	51
Arden	4b	5a	47	54
Arkona	6a	6b	61	65
Armstrong	1a	2a	12	23
Arnprior	4b	5a	46	52
Arthur	4b	5b	49	56
Astorville	3b	4b	39	46
Athens	5a	5b	54	59
Atikokan	2b	3b	27	37
Attawapiskat	0b	1b	6	15
Atwood	5a	5b	53	59
Aurora	5a	5b	53	58
Avonmore	5a	5a	50	54
Aylmer	5b	6b	59	65
Ayr	5b	6a	56	61
Ayton	5a	5b	51	57