Current and Historical Snow Pack Conditions

The following table shows the cumulative inches of snow in Silverton on the first day of each month. Note that the course conditions on run day are most closely correlated with how much snow fell late in the season, for instance, the 1993 running came after a winter of very heavy total snowfall, but there was little snow on the course because most of it fell before March. In contrast, the run was cancelled in 1995 due to the snowpack, much of which fell during March, April, and May. Stay tuned to see what 2010 conditions will be.

Year	December	January	February	March	April	May	June	Course condition on run day
91-92	52	66	76	91	125	131	131	Sparse patches of snow on north slopes of high passes.
92-93	40	64	140	228	249	265	273	Snow on north slopes of high passes.
93-94	22	34	45	80	89	129	131	Sparse patches of snow on north slopes of high passes.
94-95	71	86	115	147	208	224	243	Run cancelled due to heavy snowpack.
95-96	21	34	77	106	121	133	133	No snow on the course.
96-97	49	78	133	153	160	178	179	Solid snow cover on north slopes of high passes. Solid snow cover in Wasatch Basin and American Basin.
97-98	30	49	72	85	125	145	150	Very little snow on course.
98-99	46	62	90	102	114	159	190	Patches of snow on north slopes of high passes.
99-00	3	18	43	83	152	166	166	Rivers low and very little snow. Only snow on north side of Virginius.
00-01	33	52	79	114	137	170	185	Only snow on north side of Oscars and Virginius.
01-02	20	43	48	66	72	75	75	Run cancelled due to fire danger.
02-03	47	65	86	111	129	139	143	Very little snow on course.
03-04	31	60	96	141	155	183	186	Solid snow on all three pitches below Virginius. Patches of snow on Grant-Swamp, Wasatch Saddle, and in American Basin.
04-05	35	45	115	154	178	195	196	Snow in American Basin and on the north sides of Virginius and Grant-Swamp. Very marshy with some snow in Porcupine Basin. Really needed the rope across Mineral Creek.
05-06	18	31	42	66	114	missing	missing	Rivers low and no snow on the course.
06-07	52	72	85	108	123	148	162	Some snow in American Basin and solid on the north sides of Virginius.
07-08	18	78	167	209	221	233	246	Solid snow on the north side of Virginius. Some snow in upper Wasatch Basin and American Basin. Not as wet as expected otherwise.
08-09	29	87	107	121	133	155	155	Solid snow on the north side of Virginius. Some snow in upper Wasatch Basin and American Basin. No snow on Grant-Swamp Pass.
09-10	NA	50	91

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The decision of whether yearly snow pack conditions will allow the Hardrock 100 to be held or force it to be canceled, is based on the Snow Water Equivalent (SWE) measured at the Red Mountain Pass Snotel Site. At any time before June 1 of each year that the SWE is equal to or less than 23", the green light is on for that year. If the SWE is greater than 23" on June 1, a review of the situation will be made by run management and the decision announced on that date.

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