Canada's Plant Hardiness Site

	1961-1990 zone	1991-2020 zone	1961-1990 hardiness index	1991-2020 hardiness index
Cadomin	1b	2b	18	27
Cadotte Lake	2a	2b	21	27
Calahoo	3b	4a	35	40
Calgary	3a	4a	34	41
Calling Lake	1b	2b	19	27
Calmar	3b	3b	35	37
Camrose	3a	3a	34	34
Canmore	2a	3a	24	32
Carbon	3a	3a	30	30
Cardston	4a	4b	42	45
Carmangay	3b	4a	39	43
Caroline	3a	3a	30	33
Carseland	3b	3b	35	38
Carstairs	3a	3b	32	38
Carway	3b	4a	39	43
Castor	3a	3a	31	34
Cayley	3a	4a	33	41
Cereal	2b	3a	29	33
Champion	3b	4a	38	41
Chauvin	2b	3a	29	33
Cherhill	3a	3b	31	36
Chestermere	3a	4a	33	40
Chipewyan Lake	1b	2b	17	25
Chipman	3a	3b	31	35
Clairmont	2b	3a	26	33
Claresholm	3b	4a	37	42
Clive	3a	3b	34	38
Clyde	3a	3b	30	35
Coaldale	4a	4b	42	45
Coalhurst	4a	4b	42	45
Cochrane	3a	3b	31	39
Cold Lake	2a	3a	21	30
Coleman	3a	4a	32	40
Colinton	2b	3a	26	30
Conklin	1b	2b	18	27
Consort	2b	3a	25	31
Coronation	2b	3a	28	32
Coutts	4a	4a	44	43
Cowley	4a	4b	40	46
Cremona	2b	3b	29	36
Crossfield	3a	3b	32	38
Crowsnest Pass	3b	4a	35	42
Czar	2b	3a	26	33