GREAT SAND DUNES N M, COLORADO

Monthly Total Snowfall (Inches)

(053541)

File last updated on Jul 24, 2006
*** Note *** Provisional Data *** After Year/Month 200603
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.
YEAR(S) JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN ANN
1949-50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1950-51 0.00 z 0.00 z 0.00 0.00 0.00 f 7.80 4.00 0.90 0.30 9.80 0.00 0.00 22.80
1951-52 0.00 0.00 0.00 0.30 1.70 6.20 7.40 0.50 3.60 4.60 3.30 0.00 27.60
1952-53 0.00 0.00 0.00 0.00 6.70 1.90 0.50 1.50 9.90 4.00 4.00 0.00 28.50
1953-54 0.00 0.00 0.00 0.00 5.00 2.40 4.50 0.00 1.00 a 0.00 5.00 0.00 17.90
1954-55 0.00 0.00 0.00 0.00 4.30 1.20 6.00 0.00 g 0.00 c 0.00 0.00 0.00 11.50
1955-56 0.00 0.00 0.00 0.00 0.00 2.00 9.50 0.00 b 3.00 15.70 3.50 0.00 33.70
1956-57 0.00 0.00 0.00 0.00 9.80 4.50 6.70 2.00 7.50 20.00 0.00 0.00 50.50
1957-58 0.00 0.00 0.00 0.00 11.20 1.20 12.60 3.40 13.40 9.70 0.00 0.00 51.50
1958-59 0.00 0.00 0.00 1.00 7.30 3.00 6.70 3.60 11.00 11.40 3.20 0.00 47.20
1959-60 0.00 0.00 0.00 16.90 3.00 4.00 6.50 16.10 2.50 6.00 0.50 0.00 55.50
1960-61 0.00 0.00 0.00 2.00 0.00 5.50 4.00 11.00 8.30 6.00 0.00 0.00 36.80
1961-62 0.00 0.00 2.00 3.00 0.00 a 18.00 2.00 8.00 5.00 b 0.00 0.00 0.00 38.00
1962-63 0.00 0.00 0.00 0.00 1.00 0.00 b 17.50 4.00 6.00 0.00 0.00 0.00 28.50
1963-64 0.00 0.00 c 0.00 0.00 1.20 2.00 b 1.00 10.00 14.50 0.50 c 0.00 0.00 29.20
1964-65 0.00 0.00 0.00 0.00 13.00 7.00 2.80 7.00 18.30 2.50 0.50 0.00 51.10
1965-66 0.00 0.00 1.50 1.50 1.50 6.80 10.50 0.20 a 1.50 3.10 0.00 0.00 26.60
1966-67 0.00 0.00 0.00 0.40 0.00 2.20 3.50 11.50 4.50 14.00 0.00 0.00 36.10
1967-68 0.00 0.00 0.00 6.00 0.00 6.70 d 2.50 8.00 7.00 0.50 0.00 0.00 30.70
1968-69 0.00 0.00 0.00 5.00 1.00 4.00 1.00 3.50 12.00 0.00 2.50 0.00 29.00
1969-70 0.00 0.00 0.00 27.70 2.80 13.10 0.10 0.00 7.60 4.50 1.50 0.00 57.30
1970-71 0.00 0.00 0.00 4.60 0.50 0.20 0.30 1.70 1.20 0.00 1.70 0.00 10.20
1971-72 0.00 0.00 2.30 2.70 3.00 7.50 0.00 a 1.00 3.00 0.50 0.00 0.00 20.00
1972-73 0.00 0.00 0.00 13.50 12.50 18.00 3.00 5.50 13.50 6.00 d 13.00 0.00 85.00
1973-74 0.00 0.00 0.00 0.00 0.00 d 0.00 z 13.00 c 5.00 2.00 0.00 0.00 0.00 20.00
1974-75 0.00 z 0.00 0.00 0.00 0.00 6.00 15.00 0.00 15.00 0.00 z 0.00 z 0.00 z 36.00
1975-76 0.00 0.00 0.00 0.00 5.00 g 1.00 0.00 c 0.00 b 5.00 b 0.00 z 0.00 0.00 6.00
1976-77 0.00 0.00 0.00 0.00 z 0.00 z 0.00 c 0.00 z 0.00 z 0.00 b 0.00 z 0.00 a 0.00 0.00
1977-78 0.00 0.00 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 z 0.00 0.00
1978-79 0.00 0.00 0.00 0.00 0.00 z 6.00 e 16.80 1.00 6.50 8.00 0.00 0.00 38.30
1979-80 0.00 0.00 0.00 0.00 z 2.00 3.00 3.00 2.00 7.50 12.50 0.00 0.00 30.00
1980-81 0.00 0.00 0.00 0.00 a 0.00 0.00 0.00 0.50 20.70 0.00 0.30 0.00 21.50
1981-82 0.00 0.00 0.00 1.50 6.00 13.50 1.00 4.50 a 3.00 0.00 z 0.00 z 0.00 29.50
1982-83 0.00 0.00 0.00 1.70 1.10 9.10 a 0.50 6.00 15.10 1.50 d 1.70 0.00 36.70
1983-84 0.00 0.00 0.00 0.00 8.80 13.30 2.70 10.20 3.00 3.20 0.00 0.00 41.20
1984-85 0.00 0.00 0.00 10.40 a 1.00 a 0.00 z 15.30 0.00 a 0.70 a 3.00 0.00 0.00 30.40
1985-86 0.00 0.00 0.00 0.00 a 9.30 3.50 0.50 4.30 4.50 12.30 0.00 0.00 34.40
1986-87 0.00 0.00 0.00 2.50 5.90 7.00 15.30 a 8.30 8.90 0.50 0.00 0.00 48.40
1987-88 0.00 0.00 z 0.00 z 0.00 0.00 z 10.80 12.50 c 0.00 z 0.00 z 0.00 z 0.00 z 0.00 23.30
1988-89 0.00 0.00 0.00 0.00 2.80 4.60 15.10 25.10 2.70 0.10 0.00 0.00 50.40
1989-90 0.00 0.00 0.00 0.50 0.00 0.00 z 14.70 3.00 16.30 8.50 3.50 0.00 46.50
1990-91 0.00 0.00 0.00 1.00 a 0.00 c 6.00 a 3.50 0.00 b 0.00 f 5.50 0.50 a 0.00 16.50
1991-92 0.00 0.00 0.00 11.00 21.00 a 18.00 13.00 a 4.50 18.00 a 0.00 0.50 0.00 86.00
1992-93 0.00 0.00 0.00 0.00 12.00 16.30 9.30 7.90 14.20 a 7.00 1.30 0.00 68.00
1993-94 0.00 0.00 0.00 6.50 4.70 6.90 10.60 6.20 10.50 2.40 d 0.00 0.00 47.80
1994-95 0.00 0.00 0.00 5.50 6.50 c 2.30 2.40 b 0.00 a 17.80 a 12.50 5.00 b 0.30 52.30
1995-96 0.00 0.00 0.00 0.50 3.30 4.50 a 15.10 8.60 7.30 b 6.60 0.20 0.00 46.10
1996-97 0.00 0.00 0.00 5.90 10.00 0.50 b 6.10 a 16.00 a 2.80 a 18.60 0.30 0.00 60.20
1997-98 0.00 0.00 0.00 3.50 a 24.70 6.00 1.90 a 6.60 15.10 21.50 0.00 0.00 79.30
1998-99 0.00 0.00 0.00 0.50 a 7.70 5.10 13.60 5.40 4.10 5.80 17.50 0.00 59.70
1999-00 0.00 0.00 0.00 1.00 0.00 6.90 3.10 3.90 17.80 2.20 a 0.00 0.00 34.90
2000-01 0.00 0.00 0.00 0.00 2.60 b 0.60 10.30 a 7.00 12.20 3.80 3.20 1.50 41.20
2001-02 0.00 0.00 0.00 5.50 7.60 2.50 7.70 a 5.70 4.50 0.00 0.00 0.00 33.50
2002-03 0.00 0.00 0.00 0.00 0.00 1.50 3.90 12.80 32.20 2.60 0.00 a 0.00 53.00
2003-04 0.00 0.00 0.00 0.00 1.90 5.30 4.10 a 12.40 6.20 13.60 0.00 0.00 43.50
2004-05 0.00 0.00 0.00 1.00 9.90 3.10 16.50 6.70 2.40 a 12.80 1.00 0.00 53.40
2005-06 0.00 0.00 0.00 0.00 0.70 2.40 6.20 0.60 10.00 1.00 0.00 0.00 p 20.90
Period of Record Statistics
MEAN 0.00 0.00 0.11 2.65 4.70 5.59 6.76 5.26 8.31 5.57 1.42 0.03 43.47
S.D. 0.00 0.00 0.45 5.06 5.47 4.83 5.55 5.13 6.63 5.88 3.16 0.21 17.13
SKEW 0.00 0.00 4.11 3.03 1.64 1.21 0.49 1.44 1.08 1.01 3.60 6.77 0.61
MAX 0.00 0.00 2.30 27.70 24.70 18.00 17.50 25.10 32.20 21.50 17.50 1.50 86.00
MIN 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10.20
NO YRS 54 54 55 54 50 52 54 52 53 51 52 54 41