Canada's Plant Hardiness Site

	1961-1990 zone	1991-2020 zone	1961-1990 hardiness index	1991-2020 hardiness index
Cache Creek	5a	6a	53	60
Campbell River	8a	8a	82	84
Canal Flats	4b	5a	45	53
Castlegar	6b	7b	69	77
Cawston	5b	6a	59	64
Cedar	8a	9a	82	92
Central Saanich	8a	9a	82	91
Charlie Lake	2b	3a	29	33
Chase	5b	6b	59	65
Chemainus	0a	0a	0	0
Cherryville	5b	6b	59	66
Chetwynd	3b	3b	35	36
Chilliwack	8a	8b	84	87
Christian Valley	4b	5a	46	53
Christina Lake	6a	7a	64	72
Clearwater	5a	5b	53	57
Clinton	3b	4b	36	46
Coal Harbour	7b	8a	79	83
Cobble Hill	8a	9a	83	90
Coldstream	6a	6b	61	68
Collettville	5a	5b	52	59
Comox	7b	8a	79	81
Cooper Creek	6a	7a	63	71
Coquitlam	7b	8b	78	87
Courtenay	7b	8a	79	81
Cowichan Bay	8a	9a	82	90
Cranbrook	4b	5a	47	53
Crawford Bay	6b	7a	65	73
Creston	5b	6b	59	68
Cultus Lake	8a	8b	83	86
Cumberland	7b	8a	78	80