DULUTH INTL AP, at

Monthly Total Snowfall (Inches)

(212248)

File last updated on Apr 6, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1947-48 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
1948-49 0.00 z 0.00 0.00 z 0.00 5.30 12.90 26.70 12.00 a 15.30 6.70 0.00 0.00 78.90
1949-50 0.00 0.00 0.00 1.10 10.70 6.20 39.30 10.90 26.00 31.60 6.00 0.00 131.80
1950-51 0.00 0.00 0.00 0.20 10.60 44.30 7.20 16.50 21.80 8.00 0.50 0.00 109.10
1951-52 0.00 0.00 0.00 5.80 2.70 19.00 15.40 4.30 23.40 3.20 0.00 0.00 73.80
1952-53 0.00 0.00 0.00 0.50 7.30 1.80 19.80 12.80 11.90 14.20 0.00 0.00 68.30
1953-54 0.00 0.00 0.00 0.00 4.40 23.00 23.00 11.80 12.40 0.90 8.10 0.00 83.60
1954-55 0.00 0.00 0.00 2.90 7.40 4.20 16.40 31.50 23.60 5.00 0.00 0.00 91.00
1955-56 0.00 0.00 0.00 6.50 22.40 24.10 12.90 8.40 17.50 9.90 1.80 0.00 103.50
1956-57 0.00 0.00 0.00 0.00 17.00 22.80 6.40 20.60 10.90 9.40 0.00 0.00 87.10
1957-58 0.00 0.00 0.00 0.30 12.60 5.80 14.80 3.10 11.70 0.10 0.00 0.00 48.40
1958-59 0.00 0.00 0.00 0.40 3.60 15.50 11.30 9.20 3.70 3.50 0.00 0.00 47.20
1959-60 0.00 0.00 0.00 3.30 7.40 22.40 20.40 11.80 2.20 1.80 0.00 0.00 69.30
1960-61 0.00 0.00 0.00 0.00 14.80 7.40 2.80 7.70 8.80 24.40 2.50 0.00 68.40
1961-62 0.00 0.00 0.00 0.00 2.80 14.40 14.20 18.30 7.70 5.70 0.20 0.00 63.30
1962-63 0.00 0.00 0.00 0.70 1.80 11.10 3.60 14.40 23.60 0.20 0.20 0.00 55.60
1963-64 0.00 0.00 0.00 0.00 1.60 a 15.90 12.60 6.80 13.50 5.60 0.00 0.00 56.00
1964-65 0.00 0.00 0.00 0.00 12.20 24.30 10.60 19.30 45.50 1.60 1.00 0.00 114.50
1965-66 0.00 0.00 0.00 0.00 25.90 8.60 11.80 4.30 27.50 10.20 1.70 0.00 90.00
1966-67 0.00 0.00 0.00 8.10 7.60 15.40 36.70 2.70 6.90 1.60 1.30 0.00 80.30
1967-68 0.00 0.00 0.00 0.80 4.20 4.30 10.80 2.70 4.10 8.70 3.70 0.00 39.30
1968-69 0.00 0.00 0.00 0.00 21.80 37.70 58.50 3.00 3.00 8.70 0.00 0.00 132.70
1969-70 0.00 0.00 0.00 4.30 9.10 38.80 7.50 8.90 9.90 14.80 1.60 0.00 94.90
1970-71 0.00 0.00 0.00 0.20 16.80 20.90 31.80 27.40 12.70 6.50 0.60 0.00 116.90
1971-72 0.00 0.00 0.00 0.20 6.40 20.20 30.90 22.50 11.00 20.40 0.00 0.00 111.60
1972-73 0.00 0.00 0.00 0.50 6.70 20.00 9.20 3.00 2.10 2.80 1.50 0.00 45.80
1973-74 0.00 0.00 0.00 0.00 7.60 15.70 13.40 15.30 15.10 5.20 1.00 0.00 73.30
1974-75 0.00 0.00 0.30 0.80 4.50 19.10 32.70 12.30 30.30 0.40 0.00 0.00 100.40
1975-76 0.00 0.00 0.00 0.10 25.70 7.90 22.40 8.80 26.40 0.00 0.00 0.00 91.30
1976-77 0.00 0.00 0.00 0.80 2.70 7.80 8.80 6.90 15.30 0.10 0.00 0.00 42.40
1977-78 0.00 0.00 0.00 1.70 16.00 12.00 16.20 11.40 10.30 6.80 0.00 0.00 74.40
1978-79 0.00 0.00 0.00 0.00 10.10 20.80 11.90 23.30 17.00 4.20 1.40 0.00 88.70
1979-80 0.00 0.00 0.00 0.80 6.00 2.00 21.90 10.30 12.60 1.50 0.00 0.00 55.10
1980-81 0.00 0.00 0.00 1.30 1.60 7.10 4.70 13.30 4.20 4.30 0.00 0.00 36.50
1981-82 0.00 0.00 0.00 1.40 12.50 15.50 34.20 8.00 21.40 6.30 0.00 0.00 99.30
1982-83 0.00 0.00 0.00 0.80 16.00 21.40 15.70 9.00 9.90 23.70 0.00 0.00 96.50
1983-84 0.00 0.00 0.00 0.00 37.70 32.10 20.00 4.00 9.90 3.30 0.30 0.00 107.30
1984-85 0.00 0.00 0.00 3.50 2.40 8.20 15.30 12.00 29.40 0.10 0.00 0.00 70.90
1985-86 0.00 0.00 0.70 2.30 34.10 18.80 15.10 a 10.30 15.40 0.20 0.00 0.00 96.90
1986-87 0.00 0.00 0.00 1.80 8.20 7.30 11.20 5.10 6.70 0.30 0.00 0.00 40.60
1987-88 0.00 0.00 0.00 3.90 5.80 11.30 16.70 2.30 13.70 0.10 0.00 0.00 53.80
1988-89 0.00 0.00 0.00 0.30 26.10 20.70 31.20 5.30 17.60 19.00 0.70 0.00 120.90
1989-90 0.00 0.00 0.00 0.60 8.40 14.20 5.50 15.00 11.60 2.40 0.60 0.00 58.30
1990-91 0.00 0.00 0.00 3.20 5.10 13.50 11.40 9.70 9.50 8.50 2.90 0.00 63.80
1991-92 0.00 0.00 2.40 4.30 50.10 13.10 9.30 10.60 0.70 9.70 0.00 0.00 100.20
1992-93 0.00 0.00 0.00 5.10 29.40 15.50 24.90 10.00 5.80 3.50 0.00 0.00 94.20
1993-94 0.00 0.00 0.00 0.60 28.50 15.10 35.30 7.90 13.00 10.00 0.00 0.00 110.40
1994-95 0.00 0.00 0.00 0.20 15.50 6.20 12.80 17.60 20.90 16.20 0.00 0.00 89.40
1995-96 0.00 0.00 0.10 9.70 20.40 25.90 34.00 21.30 11.40 12.60 0.00 0.00 z 135.40
1996-97 0.00 z 0.00 z 0.00 z 0.30 z 15.90 42.20 35.50 8.90 23.60 1.70 0.10 0.00 127.90
1997-98 0.00 0.00 0.00 1.20 16.90 6.00 29.90 9.60 14.20 2.30 0.00 0.00 80.10
1998-99 0.00 0.00 0.00 0.00 15.70 12.80 18.90 13.50 17.80 11.50 0.00 0.00 90.20
1999-00 0.00 0.00 0.00 0.00 6.20 4.40 16.50 13.30 9.50 5.60 0.00 0.00 55.50
2000-01 0.00 0.00 0.00 0.00 17.50 19.20 14.90 32.10 7.90 7.70 0.00 0.00 99.30
2001-02 0.00 0.00 0.00 2.00 11.40 7.30 11.30 11.20 29.70 11.60 1.50 0.00 86.00
2002-03 0.00 0.00 0.00 6.30 4.30 3.40 5.90 6.40 17.10 12.90 0.00 0.00 56.30
2003-04 0.00 0.00 0.00 4.50 19.40 8.40 42.30 23.40 11.60 0.30 0.00 0.00 109.90
2004-05 0.00 0.00 0.00 0.00 1.40 17.30 45.70 20.20 6.30 0.50 0.10 0.00 91.50
2005-06 0.00 0.00 0.00 0.10 11.40 34.50 7.30 23.40 12.50 0.00 0.00 0.00 89.20
2006-07 0.00 0.00 0.00 4.10 4.00 10.10 4.50 19.70 25.50 12.70 0.10 0.00 80.70
2007-08 0.00 0.00 0.00 0.00 6.00 35.40 2.80 7.10 13.60 14.60 0.50 0.00 80.00
2008-09 0.00 0.00 0.00 0.00 z 3.20 37.10 9.30 7.10 15.50 1.20 0.00 0.00 73.40
2009-10 0.00 0.00 0.00 3.70 1.10 33.40 14.60 8.50 0.00 0.00 4.50 0.00 65.80
2010-11 0.00 0.00 0.00 7.70 27.90 18.10 18.50 3.20 7.40 10.60 0.00 0.00 93.40
2011-12 0.00 a 0.00 0.00 z 0.00 3.70 8.10 5.10 19.70 11.90 0.60 0.00 0.00 49.10
2012-13 0.00 0.00 0.10 1.10 10.10 13.20 9.20 19.10 a 25.80 0.00 z 0.00 z 0.00 z 78.60
Period of Record Statistics
MEAN 0.00 0.00 0.06 1.74 12.21 16.66 18.02 12.15 14.38 6.84 0.69 0.00 81.78
S.D. 0.00 0.00 0.32 2.35 9.99 10.38 11.81 7.11 8.57 6.87 1.49 0.00 23.97
SKEW 0.00 0.00 6.77 1.55 1.41 0.88 1.12 0.83 0.90 1.35 3.11 0.00 -0.02
MAX 0.00 0.00 2.40 9.70 50.10 44.30 58.50 32.10 45.50 31.60 8.10 0.00 132.70
MIN 0.00 0.00 0.00 0.00 1.10 1.80 2.80 2.30 0.00 0.00 0.00 0.00 36.50
NO YRS 63 64 62 63 65 65 65 65 65 64 64 63 59