• Rainbow over Half Dome

    Yosemite

    National Park California

Tioga and Glacier Point Roads Opening & Closing Dates

Plow clearing the Tioga Road; snowbanks on both sides of road
Clearing of the Tioga Road normally begins on or about April 15 each year and usually takes between one and two months. Predicting when these roads will open is not possible, even in late spring, because April and May weather significantly affects plowing progress. (April 1 snowpack (water content of the snowpack as a percent of average) for the Tuolumne drainage is listed as a reference.)


View Tioga Road and Glacier Point Road plowing updates (beginning around April 15 each year).

 

Tioga Road Glacier Point Mariposa Grove Snowpack

Year

Opened Closed

Opened

Closed

Opened

Closed as of Apr. 1
2014 May 2 Nov 13 Apr 14
Nov 28 (Didn't close
for the season)
33%
2013 May 11
Nov 18 May 3
Nov 18 (Didn't close
for the season)
(Didn't close for
the season)
52%
2012 May 7
Nov 8 Apr 20 Nov 8 (Didn't close
for the season)
(Didn't close
for the season)
43%
2011 June 18
Jan 17, 2012
May 27
Nov 19**
Apr 15
(Didn't close
for the season)
178%
2010
June 5
Nov 19
May 29
Nov 7
Mar 26/
May 21
Nov 20 107%
2009
May 19
Nov 12
May 5
Nov 12

92%
2008
May 21
Oct 30
May 2
Dec 12

99%
2007
May 11
Dec 6
May 4
Dec 6

46%
2006
Jun 17
Nov 27
May 25
Nov 27

129%
2005
Jun 24
Nov 25
May 25
?

163%
2004
May 14
Oct 17
May 14
?

83%
2003
May 31
Oct 31
May 31
Oct 31

65%
2002
May 22
Nov 5
May 17
Nov 5

95%
2001
May 12
Nov 11
May 15
?

67%
2000
May 18
Nov 9
May 15
Nov 9

97%
1999
May 28
Nov 23*
May 28
Nov 23

110%
1998
Jul 1
Nov 12
Jul 1
Nov 6

156%
1997
Jun 13
Nov 12
May 22
Nov 12

105%
1996
May 31
Nov 5
May 24
Nov 5

111%
1995
Jun 30
Dec 11
Jul 1
Dec 11

178%
1994
May 25
Nov 10



51%
1993
Jun 3
Nov 24



159%
1992
May 15
Nov 10



58%
1991
May 26
Nov 14



79%
1990
May 17
Nov 19



45%
1989
May 12
Nov 24



83%
1988
Apr 29
Nov 14



31%
1987
May 2
Nov 13



51%
1986
May 24
Nov 29



137%
1985
May 8
Nov 12



97%
1984
May 19
Nov 8



85%
1983
Jun 29
Nov 11



224%
1982
May 28
Nov 15



131%
1981
May 15
Nov 12



77%
1980
Jun 6
Dec 2



144%
Average
('80-'11)
May 27 Nov 5 May 23 Nov 17
Median
('80-'11)
May 24 Nov 12 May 24 Nov 12


*Re-opened December 23, 1999 - January 1, 2000.

**Re-opened December 16, 2011 - January 17, 2012.

Caltrans has a list of recent closing and opening dates for other passes in the Sierra Nevada.

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