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Colorado Snow Survey Program

Snow Survey Resources

Annual Summaries of Basinwide Percentages

Yr = 1968	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison		109	102	95	135
Colorado		93	102	92	115
S. Platte		93	104	88	106
N. Platte		93	103	92	118
Yampa-White		97	105	94	136
Arkansas		88	102	103	309
Rio Grande		104	102	100	162
San Juan*		110	108	108	150
State		98	103	95	131

Yr = 1969	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison		134	135	131	97
Colorado		131	106	102	76
S. Platte		110	93	79	67
N. Platte		134	121	103	87
Yampa-White		134	113	110	75
Arkansas		111	96	98	70
Rio Grande		108	119	125	106
San Juan*		148	150	148	124
State		126	114	109	74

Yr = 1970	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison		123	105	109	142
Colorado		148	131	130	165
S. Platte		166	145	141	167
N. Platte		156	128	127	149
Yampa-White		101	111	118	168
Arkansas		137	115	132	202
Rio Grande		70	61	83	106
San Juan*		89	76	96	131
State		131	114	119	156

Yr = 1971	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison		115	104	95	89
Colorado		135	129	125	125
S. Platte		122	122	114	141
N. Platte		162	150	134	134
Yampa-White		147	121	126	167
Arkansas		87	96	88	71
Rio Grande		77	81	60	51
San Juan*		100	96	71	62
State		119	114	104	108

Yr = 1972	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison		123	100	83	63
Colorado		121	110	98	95
S. Platte		115	108	96	100
N. Platte		131	114	95	98
Yampa-White		111	99	93	74
Arkansas		116	102	81	71
Rio Grande		124	101	68	47
San Juan*		128	98	58	44
State		121	105	87	79

Yr = 1973	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison			116	116	162
Colorado		113	88	92	134
S. Platte		117	93	87	117
N. Platte		131	99	95	93
Yampa-White		108	90	92	155
Arkansas		104	94	116	90
Rio Grande		139	127	150	80
San Juan*		154	133	147	93
State		123	103	109	108

Yr = 1974	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison		122	108	99	112
Colorado		125	112	110	106
S. Platte		115	105	108	117
N. Platte		136	119	114	93
Yampa-White		118	112	113	155
Arkansas		142	118	120	90
Rio Grande		115	97	87	80
San Juan*		116	101	95	93
State		122	108	106	108

Yr = 1975	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison		109	115	136	170
Colorado		106	106	117	125
S. Platte		103	102	112	109
N. Platte		105	96	106	110
Yampa-White		118	112	122	145
Arkansas		105	122	146	189
Rio Grande		99	117	157	218
San Juan*		115	124	163	224
State		107	110	130	152

Yr = 1976	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison		82	102	98	97
Colorado		92	97	95	87
S. Platte		89	89	91	89
N. Platte		88	96	102	101
Yampa-White		74	85	90	90
Arkansas		94	97	97	73
Rio Grande		73	111	115	129
San Juan*		82	117	114	103
State		86	99	99	94

Yr = 1977	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison		32	35	41	16
Colorado		38	40	54	38
S. Platte		41	38	43	43
N. Platte		41	43	57	51
Yampa-White		38	43	55	18
Arkansas		47	52	57	30
Rio Grande		32	33	34	27
San Juan*		28	26	29	17
State		37	38	46	32

Yr = 1978	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison		131	133	144	151
Colorado		145	131	133	126
S. Platte		150	129	119	97
N. Platte		143	125	121	109
Yampa-White		158	139	122	152
Arkansas		127	116	112	105
Rio Grande		79	86	102	99
San Juan*		110	122	136	123
State		132	124	126	120

Yr = 1979	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison		162	151	146	158
Colorado		132	117	127	132
S. Platte		136	118	133	117
N. Platte		123	122	127	125
Yampa-White		127	131	124	133
Arkansas		152	135	139	107
Rio Grande		226	199	206	224
San Juan*		210	184	189	209
State		157	142	148	149

Yr = 1980	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison		118	144	153	161
Colorado		126	139	139	144
S. Platte		150	142	140	151
N. Platte		138	116	121	117
Yampa-White		119	119	116	123
Arkansas		127	127	135	220
Rio Grande		128	157	154	197
San Juan*		125	161	154	185
State		130	142	146	162

Yr = 1981	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison		42	48	63	25
Colorado		40	42	57	29
S. Platte		30	33	52	21
N. Platte		31	44	56	24
Yampa-White		32	45	63	24
Arkansas		30	37	62	10
Rio Grande		41	42	65	27
San Juan*		41	38	60	32
State		37	40	59	25

Yr = 1982	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison		136	125	135	132
Colorado		145	122	121	128
S. Platte		138	108	108	98
N. Platte		126	105	106	104
Yampa-White		138	116	129	138
Arkansas		117	116	119	104
Rio Grande		102	113	140	135
San Juan*		108	105	133	131
State		128	114	114	123

Yr = 1983	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison		99	81	124	152
Colorado		89	90	123	142
S. Platte		71	68	107	125
N. Platte		84	81	107	124
Yampa-White		92	91	105	124
Arkansas		69	79	116	155
Rio Grande		105	103	131	152
San Juan*		103	100	130	149
State		90	90	120	142

Yr = 1984	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison		160	144	137	162
Colorado		160	139	141	169
S. Platte		138	127	125	147
N. Platte		131	116	113	132
Yampa-White		138	114	122	141
Arkansas		161	149	144	191
Rio Grande		137	122	115	117
San Juan*		140	122	111	131
State		147	130	127	127

Yr = 1985	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison	155	117	106	110	104
Colorado	131	108	101	101	104
S. Platte	119	90	87	82	84
N. Platte	124	96	92	86	93
Yampa-White	124	107	95	93	102
Arkansas	120	98	98	103	85
Rio Grande	145	128	123	135	153
San Juan*	135	122	115	122	136
State	134	107	103	104	107

Yr = 1986	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison		103	114	95	100
Colorado		110	127	108	124
S. Platte		106	137	113	126
N. Platte		125	148	126	128
Yampa-White		98	115	106	105
Arkansas		87	102	85	85
Rio Grande		101	110	98	124
San Juan*		93	109	106	118
State		104	120	104	116

Yr = 1987	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison		90	97	96	71
Colorado		73	70	73	43
S. Platte		90	90	93	61
N. Platte		71	60	65	43
Yampa-White		63	66	67	38
Arkansas		119	131	132	137
Rio Grande		107	108	124	118
San Juan*		96	107	113	118
State		90	93	97	74

Yr = 1988	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison	75	87	81	74	68	60
Colorado	77	96	97	93	87	69
S. Platte	100	96	104	104	95	59
N. Platte	85	90	96	104	95	80
Yampa-White	75	96	100	99	93	68
Arkansas	74	99	98	80	63	54
Rio Grande	71	86	85	68	54	43
San Juan*	69	84	78	59	55	53
State	77	92	93	85	76	55

Yr = 1989	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison	95	88	100	84	46	26
Colorado	91	85	96	83	59	39
S. Platte	98	90	106	84	57	24
N. Platte	100	79	90	87	63	20
Yampa-White	96	85	94	82	57	11
Arkansas	107	103	121	91	42	25
Rio Grande	82	107	139	106	62	39
San Juan*	87	99	114	88	45	33
State	94	95	109	87	50	32

Yr = 1990	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison	44	44	52	54	64	36
Colorado	69	71	71	77	73	61
S. Platte	102	80	80	102	96	83
N. Platte	114	87	92	101	87	91
Yampa-White	102	89	89	87	56	55
Arkansas	88	62	66	66	79	83
Rio Grande	10	26	43	53	63	56
San Juan*	10	23	38	45	59	34
State	64	59	66	74	68	54

Yr = 1991	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison	85	73	67	87	107	36
Colorado	76	75	71	89	108	62
S. Platte	72	63	61	75	84	39
N. Platte	91	77	74	90	97	75
Yampa-White	71	78	79	93	103	61
Arkansas	75	82	79	93	98	75
Rio Grande	109	102	92	111	100	52
San Juan*	85	84	74	100	79	29
State	81	77	72	91	94	43

Yr = 1992	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison	98	81	80	94	49	25
Colorado	97	81	78	88	65	15
S. Platte	90	83	76	94	64	16
N. Platte	77	75	77	77	64	33
Yampa-White	86	75	80	83	50	30
Arkansas	136	106	99	102	64	56
Rio Grande	123	97	95	94	62	39
San Juan*	109	86	87	97	64	43
State	101	87	84	93	59	25

Yr = 1993	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison	108	123	152	138	166	180
Colorado	105	102	126	124	151	145
S. Platte	87	90	108	108	132	106
N. Platte	93	96	110	106	124	100
Yampa-White	95	101	113	113	150	159
Arkansas	131	110	131	129	150	107
Rio Grande	104	128	156	137	150	127
San Juan*	99	138	167	149	157	135
State	101	111	134	126	149	128

Yr = 1994	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison	79	67	85	78	92	47
Colorado	92	84	91	88	85	29
S. Platte	102	93	102	93	92	7
N. Platte	93	91	94	88	84	39
Yampa-White	89	85	86	78	76	40
Arkansas	96	80	94	97	115	51
Rio Grande	75	59	86	83	93	59
San Juan*	67	59	84	74	93	55
State	85	77	91	84	89	33

Yr = 1995	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison	106	105	112	122	161	482
Colorado	84	81	98	103	132	321
S. Platte	62	55	73	77	122	307
N. Platte	63	75	82	82	100	217
Yampa-White	81	88	90	91	120	254
Arkansas	90	80	91	117	183	303
Rio Grande	118	114	115	125	167	287
San Juan*	114	111	108	125	159	336
State	93	89	108	105	141	342

Yr = 1996	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison	62	107	117	109	112	55
Colorado	100	131	139	131	140	98
S. Platte	138	150	152	147	147	148
N. Platte	122	134	137	129	129	105
Yampa-White	107	137	141	133	137	126
Arkansas	77	97	106	105	106	94
Rio Grande	31	51	69	67	46	3
San Juan*	32	68	74	72	50	2
State	80	110	117	112	110	82

Yr = 1997	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison	172	179	154	123	150	145
Colorado	160	161	140	118	142	146
S. Platte	154	152	134	110	156	182
N. Platte	150	149	130	112	129	138
Yampa-White	159	166	142	121	144	156
Arkansas	151	145	143	108	150	162
Rio Grande	138	154	147	110	136	126
San Juan*	156	168	146	111	134	108
State	160	161	143	114	143	142

Yr = 1998	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison	84	89	89	93	121	73
Colorado	81	92	94	89	99	50
S. Platte	92	101	93	91	106	52
N. Platte	71	86	89	84	86	63
Yampa-White	70	88	92	92	103	79
Arkansas	135	114	99	98	127	54
Rio Grande	88	79	77	88	111	48
San Juan*	69	69	71	81	101	42
State	81	88	87	89	105	49

Yr = 1999	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison	71	85	81	64	88	113
Colorado	65	89	89	75	91	99
S. Platte	75	89	86	70	114	150
N. Platte	73	98	98	84	98	104
Yampa-White	60	89	92	79	92	104
Arkansas	77	86	79	61	98	127
Rio Grande	105	89	79	53	87	90
San Juan*	96	83	74	43	74	85
State	77	88	85	65	91	105

Yr = 2000	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison	32	61	76	91	58	0
Colorado	51	79	94	97	84	10
S. Platte	64	85	84	98	85	25
N. Platte	64	86	102	101	94	41
Yampa-White	64	88	100	101	79	29
Arkansas	62	62	61	81	72	31
Rio Grande	19	29	45	61	35	1
San Juan*	17	41	63	83	46	0
State	45	66	80	90	69	14

Yr = 2001	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison	83	78	84	85	76	18
Colorado	95	82	85	86	79	18
S. Platte	84	65	69	81	80	22
N. Platte	90	75	79	78	74	31
Yampa-White	99	81	82	82	69	29
Arkansas	86	72	79	84	82	54
Rio Grande	81	91	101	102	120	57
San Juan*	93	91	96	90	91	32
State	91	81	86	87	84	24

Yr = 2002	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison	77	63	58	57	19	0
Colorado	72	70	68	63	27	0
S. Platte	54	49	52	54	23	2
N. Platte	61	58	62	63	44	15
Yampa-White	70	66	64	68	32	7
Arkansas	55	58	62	48	24	0
Rio Grande	48	48	43	38	6	0
San Juan*	66	51	45	34	6	0
State	65	58	56	52	19	2

Yr = 2003	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison	93	74	85	86	66	21
Colorado	93	82	93	101	105	47
S. Platte	73	63	79	114	109	58
N. Platte	84	72	84	99	105	25
Yampa-White	91	78	90	91	91	28
Arkansas	72	68	83	100	99	42
Rio Grande	67	60	73	76	56	22
San Juan*	84	63	77	75	51	10
State	85	71	83	94	87	32

Yr = 2004	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison	105	101	103	74	77	26
Colorado	91	85	83	64	55	23
S. Platte	67	65	69	51	65	13
N. Platte	97	81	81	69	66	40
Yampa-White	108	90	89	69	53	36
Arkansas	69	76	90	60	98	23
Rio Grande	85	106	108	77	102	37
San Juan*	99	102	105	70	85	26
State	92	88	90	65	68	23

Yr = 2005	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison	117	143	133	127	125	119
Colorado	96	103	98	98	88	73
S. Platte	92	84	80	84	77	47
N. Platte	92	92	88	86	80	64
Yampa-White	87	86	84	86	72	52
Arkansas	110	113	120	112	107	57
Rio Grande	115	154	147	140	139	119
San Juan*	109	154	145	138	135	176
State	99	114	109	107	99	72

Yr = 2006	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison	98	97	84	94	56	38
Colorado	133	128	115	110	78	38
S. Platte	130	112	101	103	74	16
N. Platte	133	120	110	107	87	48
Yampa-White	136	128	115	114	84	45
Arkansas	98	102	88	86	61	51
Rio Grande	34	43	40	64	40	11
San Juan*	47	53	46	68	44	6
State	103	99	88	94	65	26

Yr = 2007	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison	93	77	81	66	47	26
Colorado	102	91	95	81	71	34
S. Platte	128	114	111	94	93	69
N. Platte	91	80	89	80	69	39
Yampa-White	80	68	84	69	42	20
Arkansas	118	106	102	81	88	68
Rio Grande	94	102	93	70	69	53
San Juan*	77	76	78	58	52	47
State	96	91	92	75	68	40

Yr = 2008	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison	117	149	151	133	136	145
Colorado	105	122	128	123	120	146
S. Platte	93	97	109	108	103	119
N. Platte	90	103	111	106	109	122
Yampa-White	85	102	109	107	108	85
Arkansas	141	147	152	141	131	130
Rio Grande	137	173	169	140	117	86
San Juan*	129	155	155	126	103	95
State	110	129	135	123	115	111

Yr = 2009	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE
Gunnison	127	115	108	97	79	7
Colorado	127	123	115	104	99	31
S. Platte	99	103	94	86	100	52
N. Platte	86	105	102	96	96	55
Yampa-White	97	115	109	104	89	40
Arkansas	137	121	108	95	95	52
Rio Grande	140	130	114	97	95	30
San Juan*	135	116	106	86	63	15
State	120	117	108	96	90	32