This information is set up to answer the often-asked question by many Mt Whitney
hikers, who have a permit for May, June or July. The switchbacks are covered
by snow and unuseable until enough snow melts that the trail can be followed.

April Most Hwy 120 days April
Snowpack First people Tioga after Crabtree
Year Level use using Open Tioga water
----- ------- ------- ------- --------- ------ -------
2021 60% Apr 15
2020 2020 closed due to COVID
2019 150% June 7 July 7 July 1 6 27" Lots of snow in May. Snow shoveled 6/7/19
2018 50% June 7 June 16 May 21 26 11"
2017 160% July 9 July 14 June 29 10 44"
2016 85% June 5 June 15 May 18 27 15"
2015 20% June 1 June 8 May 4 28 1
2014 25% June 2 June 13 May 2 28
2013 40% May 23 June 4 May 11 12 7
2012 50% May 23 June 4 May 7 16 7
2011 170% July 9 June 18 21 36




2018 Snow level from CDEC (April, Kern R avg), 46%
from: http://cdec.water.ca.gov/snow/current/snow/index.html
    http://cdec.water.ca.gov/cgi-progs/snow/COURSES.04

April Crabtree water: Water content (inches) for station 253 for April
Link: "Individual Snow Course Historical Data"
    http://cdec.water.ca.gov/cgi-progs/snowQuery


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