History of Mammoth Mountain Opening and Closing Dates
One of the main stats I have always loved to examine is the opening and closing dates at Mammoth Mountain over the years.
Below is a list of the open and closing dates we currently have.
Enjoy the information and I look forward to meeting you out on the slopes of Mammoth Mountain one day soon.
Steve Taylor – the Mammoth Snowman
| 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 | 10/08/95 | 08/13/95 |
| 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 **Opened 10/16 for 3 days |
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 |
| 2015/16 | 11/09/2019 | 05/24/2020 |
| 2016/17 | 11/10/2016 | 08/06/2017 |
| 2017/18 | 11/09/2017 | 06/17/2018 |
| 2018/19 | 11/10/2018 | 07/28/2019 |
| 2019/20 | 11/09/2019 | 03/14/2019*CV |
| 2020/21 | 11/13/2020 | 05/31/2021 |
| 2021/22 | 10/29/2021 | 06/05/2022 |
| 2022/23 | 11/05/2022 | 08/06/2023 |
| 2023/24 | 11/10/2023 | 05/27/2024 |
| 2024/25 | ? | ? |
