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Climate Analysis Branch

Boulder weather and climate home

• Forecasts and Current Conditions
• Climatologies and Weather Records
• Temperature
• Snowfall
• Precipitation
• Severe Weather
• Miscellaneous Boulder Information
• Colorado Information
• Astronomical Information
• Data Sources
• Interactive Pages

 

Snowpack Sites and Information

Skip to latest available data | Skip to data table  

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Snotel Sites

• SNOTEL basin and state summary: daily updates western states and river basins
• Basin average snow water content: Map of the western US.
• Basin average precipitation: Map of the western US.
• Past daily SNOTEL data (from 1997)
• Colorado Individual Snotel Site Report

Other Snow Sites

• Graphs of accumulated precipitation for this year for the state are available. They also present the data by riverbasin on that page.
• A full list of snow plots/data including Colorado Snowpack plots including historical plots from NRSC
• Many selectable snow/ice maps from NOAA's National Operational Hydrologic Remote Sensing Center.
• Detailed plots of many snow parameters for desired regions. From NOAA's National Operational Hydrologic Remote Sensing Center.

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Data going back to 12/28/94

Weekly Snowpack data from 11/04/03 to the present for Colorado River Basins

*S: Percent of average Snow Water Equivalent
A: Percent of average Accumulated Precipitation
New water year

 

Date	Gunnison		Upper Col.		South Platte		Laramie N Platte		Yampa White		Arkansas		Upper Rio Grande		San Miguel; Delores San Juan
Date:	S	A	S	A	S	A	S	A	S	A	S	A	S	A	S	A
110403	*	62	*	57	*	52	*	74	*	66	*	75	107	79	*	75
111103	76	80	75	76	54	58	96	95	123	92	59	73	91	83	87	80
111803	107	98	99	93	68	69	106	107	132	118	74	80	113	97	117	101
112503	96	90	93	91	79	71	105	111	122	115	74	78	100	96	101	95
120103	91	92	90	91	70	72	103	108	121	116	70	77	95	91	92	89
120803	93	87	89	86	70	70	103	105	119	112	69	74	92	87	93	87
121503	90	85	88	85	72	69	102	102	115	108	66	74	86	85	87	83
122203	94	89	88	86	68	67	99	98	109	103	67	72	89	87	88	83
122903	100	92	87	83	87	64	95	93	107	102	66	73	94	91	94	86
010504	125	112	100	94	84	72	100	97	109	104	81	81	116	106	125	108
011204	119	108	96	92	70	74	96	95	105	103	80	78	109	103	112	102
011904	109	101	87	85	65	69	88	88	95	95	75	73	103	97	110	98
012604	104	97	84	80	64	68	81	83	88	89	75	71	104	95	103	92
020304	101	95	84	82	65	69	81	82	89	90	81	77	103	99	105	94
021004	101	92	85	81	68	70	84	85	91	90	83	79	104	100	101	93
021704	96	89	82	79	68	70	81	83	87	87	83	80	101	98	93	87
022404	96	90	82	79	68	71	78	81	85	85	85	79	107	102	97	90
030204	101	94	84	80	69	72	82	83	88	87	88	82	108	104	106	98
030904	99	93	84	80	72	73	85	83	89	87	90	84	107	105	101	96
031604	92	89	80	79	69	72	81	81	85	85	85	81	99	101	92	92
032304	81	86	72	75	63	69	74	78	74	82	73	78	89	96	82	88
033004	78	85	69	77	62	68	72	80	71	83	66	77	84	94	76	86
040804	75	88	63	78	68	75	66	79	59	80	77	86	85	98	83	95
050404	75	93	56	80	78	79	63	81	50	83	94	98	100	103	87	95
051104	53	91	37	78	52	76	42	79	33	81	69	96	77	101	68	93
051804	48	91	33	77	52	77	42	79	36	82	56	93	51	100	61	91
052504	36	89	18	74	28	71	29	77	30	79	34	90	43	96	39	88
060104	30	87	22	74	18	74	29	78	33	79	30	88	0	94	28	86
060804	30	87	22	74	18	74	29	78	33	79	30	88	0	94	28	86
Date	Gunnison		Upper Col.		South Platte		Laramie N Platte		Yampa White		Arkansas		Upper Rio Grande		San Miguel; Delores San Juan
Date:	S	A	S	A	S	A	S	A	S	A	S	A	S	A	S	A

New water year

Date	Gunnison		Upper Col.		South Platte		Laramie N Platte		Yampa White		Arkansas		Upper Rio Grande		San Miguel; Delores San Juan
Date:	S	A	S	A	S	A	S	A	S	A	S	A	S	A	S	A
010405	117	114	90	92	87	90	89	88	89	92	107	96	118	117	114	109
011105	164	145	125	106	95	97	101	97	103	105	124	106	148	137	164	139
011805	169	149	111	112	93	96	101	98	100	103	130	111	164	147	167	140
012505	155	143	105	106	85	90	95	92	92	97	112	102	145	135	159	133
020805	147	130	101	100	86	88	87	86	86	90	126	104	155	134	155	125
021505	142	127	99	97	85	87	89	85	89	92	115	107	150	140	151	130
030105	143	124	101	97	84	85	86	84	86	90	117	105	149	136	149	120
031505	126	122	92	90	82	85	81	78	81	84	111	99	140	134	135	129
032205	128	114	95	93	85	86	85	82	86	87	116	102	139	131	135	127
032905	131	115	95	93	85	83	85	82	85	86	119	104	143	131	137	124
040505	133	122	98	94	82	81	86	82	86	87	122	105	143	133	142	131
041205	135	121	98	94	83	85	84	82	86	87	129	104	144	132	140	126
050305	136	119	97	97	93	89	82	84	77	90	139	107	149	132	144	129
051705	151	119	105	96	102	89	92	88	77	91	117	101	181	131	157	124
052405	119	117	74	94	71	85	74	85	59	90	86	102	*	128	131	121
053105	117	114	62	93	51	83	57	81	50	87	62	94	*	125	122	119
060705	*	114	*	98	50	88	76	96	*	96	*	98	*	122	104	117
061405	*	116	*	100	*	85	107	92	*	99	*	92	*	124	*	118
062105	*	115	*	98	*	88	*	96	*	97	*	98	*	123	*	117
062805	*	114	*	98	*	78	*	92	*	98	*	88	*	122	*	117
070405	*	113	*	97	*	76	*	91	*	96	*	84	*	121	*	116
101105	*	113	*	172	*	198	*	165	*	159	*	130	*	139	*	124
101805	31	107	99	158	213	182	74	152	19	146	136	117	116	130	16	114
110805	44	100	87	136	95	121	59	107	34	109	74	98	43	83	19	85
111505	77	112	145	165	142	152	117	145	100	138	107	110	32	81	30	83
112205	71	102	121	151	130	144	103	137	85	128	91	101	26	74	25	76
112905	65	90	116	137	112	129	100	128	92	124	76	89	22	67	23	68
120605	93	109	46	159	136	146	130	147	129	146	98	103	33	72	43	79
121305	87	107	136	152	131	139	123	139	122	139	94	100	33	71	42	77
122005	94	106	142	154	140	143	134	144	134	144	99	101	34	68	47	75
122705	90	101	133	145	128	135	127	136	127	136	96	97	33	65	41	69
01042006	102	109	138	147	130	135	137	141	139	142	100	100	37	66	52	74
01102006	91	98	129	139	121	133	132	135	133	136	97	93	33	59	45	68
01172006	94	101	129	140	121	132	134	129	135	133	94	89	34	58	47	67
01242006	92	100	126	137	120	127	124	127	126	131	97	92	37	63	48	69
01312006	97	102	126	136	117	124	120	127	124	129	99	92	46	69	55	73
02072006	99	104	127	134	120	127	127	125	132	133	99	91	45	65	55	71
02142006	89	96	121	131	118	122	121	123	125	128	92	86	41	63	52	68
02212006	86	91	118	124	114	118	119	116	119	119	88	85	45	64	51	66
02282006	81	90	111	120	107	113	114	114	115	118	83	82	43	63	47	63
03072006	80	86	108	117	99	106	111	114	112	116	78	79	42	62	45	62
03142006	92	95	112	118	106	110	113	109	116	116	85	84	55	74	62	74
03202006	92	94	112	116	110	111	113	112	114	116	89	85	60	74	64	74
03282006	89	92	109	113	106	108	113	111	114	114	89	85	60	76	62	73
04042006	98	99	110	116	105	107	113	107	115	112	90	85	67	82	74	82
04112006	98	102	107	113	98	102	108	111	110	114	87	86	66	84	76	84
04182006	87	100	98	111	90	99	99	107	97	112	80	85	60	85	70	83
04/25/06	73	97	89	109	85	97	94	106	89	111	71	82	49	80	60	81
05/02/06	53	95	79	107	84	97	87	104	76	109	70	93	49	82	47	79
05/09/06	40	94	76	107	86	97	87	105	71	109	66	82	38	80	35	78
05/16/06	32	92	66	105	74	94	75	102	55	107	52	79	29	78	25	77
05/23/06	22	91	44	103	48	91	55	102	49	106	47	79	29	77	17	76
05/30/06	7	89	33	101	25	88	40	100	45	104	52	77	23	76	9	74
06/06/06	0	88	0	100	6	84	27	101	0	103	0	0	0	76	0	72
06/30/06	0	88	0	99	0	81	22	97	0	103	0	76	0	76	0	75
06/20/06	0	88	0	98	0	81	10	96	0	102	0	75	0	70	0	74
10/31/06	0	205	0	186	0	210	0	163	0	175	0	167	0	168	0	201
11/07/06	109	168	0	151	0	167	120	130	0	140	133	135	88	138	71	168
11/14/06	109	161	124	136	147	144	105	120	99	128	108	118	76	124	64	150
11/21/06	103	150	122	158	146	140	105	117	102	124	122	118	76	117	63	141
11/28/2006	100	142	114	125	122	124	91	104	91	111	115	109	71	106	67	130
12/05/2006	104	143	120	130	132	130	93	105	91	110	119	114	80	112	77	133
12/12/2006	98	132	112	120	119	119	88	97	85	102	110	108	79	107	76	124
12/19/2006	93	127	105	115	107	113	90	98	86	99	100	101	83	109	78	121
12/26/2006	94	126	110	117	125	127	99	106	87	98	109	110	91	114	82	122
01/02/2007	92	119	101	109	128	129	92	98	78	90	125	122	93	113	76	114
01/09/2007	89	115	103	109	131	133	92	98	79	90	131	125	94	114	75	111
01/23/2007	85	108	97	103	120	123	84	92	73	86	122	117	105	123	78	110
01/30/2007	81	102	91	96	111	115	76	85	66	80	117	108	100	117	75	105
02/06/2007	80	100	91	96	112	115	77	86	68	81	122	115	101	116	76	102
02/13/3007	80	98	89	94	106	110	78	86	71	82	115	105	97	111	77	101
02/20/2007	82	98	94	97	111	114	84	91	79	88	118	105	96	109	78	100
02/27/2007	83	97	94	97	109	111	87	91	82	87	115	102	93	106	75	98
Date:	S	A	S	A	S	A	S	A	S	A	S	A	S	A	S	A
2007/12/04	79	100	79	104	68	80	72	96	60	92	84	87	89	96	93	96
2007/12/11	132	136	110	125	96	98	84	103	80	103	131	135	158	148	155	139
2007/12/18	123	130	103	118	93	96	80	98	74	96	123	114	153	148	144	134
2007/12/25	121	125	105	116	91	95	87	102	86	103	119	113	145	141	139	127
2008/01/01	117	117	105	113	94	96	91	102	90	102	129	109	137	131	129	118
2008/01/08	143	137	117	121	97	99	95	104	94	105	146	121	164	144	158	137
2008/01/15	143	136	117	123	98	100	99	107	101	110	140	123	157	147	153	137
2008/01/22	132	129	115	120	95	97	98	105	100	108	149	128	151	140	142	130
2008/01/29	145	132	121	122	96	98	101	106	102	109	150	130	171	145	159	137
2008/02/05	153	145	128	130	101	103	103	111	109	117	168	135	180	157	167	145
2008/02/12	148	145	131	134	108	107	110	115	115	123	169	141	171	159	157	153
2008/02/19	145	137	129	128	109	109	110	114	113	116	163	138	168	155	156	139
2008/02/26	150	143	132	128	112	109	112	114	115	116	164	138	168	150	161	140
2008/04/07	107	104	114	108	93	98	105	105	114	108	106	98	101	102	93	99
2009/05/06	79	106	96	108	105	101	98	105	93	107	98	101	88	105	64	96
Date	Gunnison		Upper Col.		South Platte		Laramie N Platte		Yampa White		Arkansas		Upper Rio Grande		San Miguel; Delores San Juan

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* The Snow Water Equivalent Percent of Average represents the snow water equivalent found at selected SNOTEL sites in or near the basin compared to the average value for those sites on this day. The Accumulated Precipitation Percent of Average represents the total precipitation (beginning October 1st) found at selected SNOTEL sites in or near the basin compared to the average value for those sites on this day.

[Pages are for curiosity only; there are no guarantees that the data is correct.]