History of Mammoth Mountain Opening and Closing Dates

One of the main stats I have always loved to look at was the opening and closing dates over the years at Mammoth Mountain.

They used to include this information right in the history of Mammoth Mountain Snowfall chart but it got deleted when they updated that spreadsheet a few years back.

Below is a list of the open and closing dates we have at this time. At some point, we will try to go forward and back in time to complete this entire list.

I will put a call into Dave Mc Coy, maybe he has it written down for the real early days of the Mammoth Mountain Ski Area.

Enjoy the information and I look forward to meeting you out on the slopes of Mammoth Mountain.

Season Date Open Date Closed
1968/69 11/03/68 07/01/69
1969/70 10/15/69 07/01/70
1970/71 10/13/70 06/27/71
1971/72 10/30/71 05/01/72
1972/73 11/08/72 06/30/73
1973/74 10/28/73 06/29/74
1974/75 10/28/74 07/06/75
1975/76 10/11/75 05/30/76
1976/77 12/22/76 05/30/77
1977/78 11/07/77 07/04/78
1978/79 11/18/78 06/24/79
1979/80 11/05/79 07/06/80
1980/81 11/13/80 06/11/81
1981/82 10/30/81 07/05/82
1982/83 10/31/82 07/28/83
1983/84 11/12/83 06/12/84
1984/85 11/09/84 05/27/85
1985/86 11/11/85 07/06/86
1986/87 12/11/86 05/10/87
1987/88 11/06/87 05/30/88
1988/89 11/17/88 05/29/89
1989/90 10/27/89 05/22/90
1990/91 11/28/90 05/27/91
1991/92 10/28/91 05/25/92
1992/93 10/31/92 07/05/93
1993/94 11/06/93 05/30/94
1994/95 *10/08/1994 *08/13/1995
1995/96 11/04/95 07/07/96
1996/97 11/08/96 06/01/97
1997/98 11/07/97 07/05/98
1998/99 11/06/98 06/13/99
1999/00 11/01/99 06/18/00
2000/01 10/31/00 05/30/01
2001/02 11/08/01 06/02/02
2002/03 11/07/02 06/15/03
2003/04 11/06/03 06/01/04
2004/05 10/21/04 07/04/05
2005/06 11/10/05 07/04/06
2006/07 11/09/06 05/31/07
2007/08 11/08/07 05/31/08
2008/09  11/03/08 06/14/09
2009/10  11/08/09 07/05/10
2010/11  11/11/10  07/04/11
2011/12  11/10/11  05/28/12
2012/13  11/08/12  06/01/13
2013/14  11/07/13  05/26/14
2014/15  11/13/14  05/25/15
Season Date Open Date Closed
2015/16 11/09/2019 05/24/2020
16/17 11/10/2016 08/06/2017
17/18 11/09/2017 06/17/2018
19/20 11/10/2018 07/**/2019
19/20 11/09/2019 unknown

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