Year

Opening Date

Closing Date

Days Open

1933

8-Jul

30-Sep

84

1934

17-May

28-Sep

134

1935

21-Jun

11-Oct

112

1936

1-Jul

9-Sep

70

1937

23-Jun

13-Oct

112

1938

5-Jul

16-Oct

103

1939

5-Jun

1940

8-Jun

20-Oct

134

1941

20-Jun

16-Oct

118

1942

27-Jun

13-Oct

108

1943

25-Jun

4-Sep

71

1944

27-Jun

4-Sep

69

1945

24-Jun

10-Sep

78

1946

9-Jun

6-Oct

119

1947

24-May

14-Oct

143

1948

25-Jun

22-Sep

89

1949

28-May

16-Oct

141

1950

30-May

26-Oct

149

1951

26-May

23-Oct

150

1952

21-Jun

13-Nov

145

1953

22-May

18-Oct

149

1954

26-May

14-Nov

172

1955

28-May

8-Nov

164

1956

16-Jun

24-Oct

130

1957

25-May

3-Nov

162

1958

22-Jun

22-Oct

122

1959

16-May

30-Oct

167

1960

27-May

31-Oct

157

1961

26-Apr

27-Oct

184

1962

26-May

1-Nov

159

1963

30-May

2-Nov

156

1964

16-May

31-Oct

168

1965

29-May

4-Nov

159

1966

27-May

6-Nov

163

1967

17-Jun

18-Nov

154

1968

4-May

3-Nov

183

1969

6-Jun

3-Nov

150

1970

15-May

1-Nov

170

1971

14-May

10-Nov

180

1972

11-Apr

7-Nov

210

1973

18-May

11-Nov

177

1974

17-May

28-Oct

164

1975

29-May

30-Oct

154

1976

10-Apr

29-Dec

263

1977

8-Apr

20-Nov

226

1978

3-Jun

10-Nov

160

1979

18-May

3-Nov

169

1980

6-Jun

2-Dec

179

1981

15-May

12-Nov

181

1982

28-May

8-Nov

164

1983

30-Jun

11-Nov

134

1984

19-May

5-Nov

170

1985

8-May

10-Nov

186

1986

24-May

6-Dec

196

1987

8-May

23-Nov

199

1988

29-Apr

13-Nov

198

1989

12-May

24-Nov

196

1990

17-May

19-Nov

186

1991

26-May

14-Nov

172

1992

20-May

29-Oct

162

1993

4-Jun

11-Nov

160

1994

26-May

10-Nov

168

1995

30-Jun

6-Dec

159

1996

31-May

24-Oct

146

1997

13-Jun

10-Nov

150

1998

1-Jul

6-Nov

128

1999

28-May

1-Jan 2000

218

2000

18-May

9-Nov

175

2001

12-May

20-Nov

192

2002

24-May

6-Nov

166

2003

31-May

31-Oct

153

Average:

29-May

31-Oct

155

Earliest:

8-Apr

4-Sep

69(least)

Latest:

8-Jul

1-Jan

263(most)

Average by Decade

1933-39

19-Jun

2-Oct

103

1940-49

15-Jun

30-Sep

107

1950-59

1-Jun

30-Oct

151

1960-69

24-May

3-Nov

163

1970-79

8-May

11-Nov

187

1980-89

21-May

17-Nov

180

1990-99

4-Jun

15-Nov

165

2000-09

21-May

8-Nov

172

If road opened then closed briefly again, the earliest opening and latest closing date is used. Days open refers to the number of days between these dates and does not reflect closures within these dates. For example, in 1999 the pass was closed from Nov. 18-Dec. 23, but the "days open" figure includes these 35 days that it was closed.

Pre-1994 data compiled by Bob Gregg. All data entered by and post-1994 data compiled by Mono Lake Committee.