WINONA DAM 5 A, MN

Total of Snowfall (Inches)

(219072)

File last updated on March 28, 2024
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)JULAUGSEPOCTNOVDECJANFEBMARAPRMAYJUNANN
1938-39-----z-----z-----z-----z-----z-----z8.30v17.40 5.00 -----z-----z-----z22.40j
1939-40-----z-----z-----z-----z0.50 1.70 3.30 10.20 22.50 -----z-----z-----z38.20g
1940-41-----z-----z-----z-----z9.60s10.40y7.70 6.20 8.20s-----z-----z-----z13.90j
1941-42-----z-----z-----z-----z-----z17.60 2.10 7.80 3.00 -----z-----z-----z30.50h
1942-43-----z-----z-----z-----z-----z-----z23.00 3.50 1.30a-----z-----z-----z27.80i
1943-44-----z-----z-----z-----z-----z-----z3.30 9.60 16.70 2.50 -----z-----z32.10h
1944-45-----z-----z-----z-----z1.10 2.60 10.10 20.70 2.50 13.00 -----z-----z50.00f
1945-46-----z-----z-----z-----z3.50 9.70 6.00 7.30s1.00 -----z-----z-----z20.20h
1946-47-----z-----z-----z-----z0.60 -----z15.30 2.50 1.50 -----z-----z-----z19.90h
1947-48-----z-----z-----z-----z17.50 13.80 1.50 11.20 2.90 -----z-----z-----z46.90g
1948-490.00 0.00 0.00 -----z0.30 13.50 11.10 4.70 0.70a2.50 0.00 0.00 32.80a
1949-500.00 0.00 0.00 0.00 2.00 13.00 10.00 14.00 5.50 0.00 0.00 0.00 44.50
1950-510.00 0.00 0.00 0.00 3.30 24.00 17.00 4.00 40.00b3.00 0.00 0.00 91.30
1951-520.00 0.00 0.00 0.00 10.00 17.00b15.00 15.50 23.50 3.00c0.00 0.00 84.00
1952-530.00 0.00 0.00 1.00 6.00 11.50 10.00 13.00 0.00c0.00 0.00 0.00 41.50
1953-540.00 0.00 0.00 0.00 0.00a-----z8.80a0.00 6.00 0.00 0.00 0.00 14.80a
1954-550.00 0.00 0.00 0.00 2.00 8.00 3.20 2.50 8.50 0.00 0.00 0.00 24.20
1955-560.00 0.00 0.00 0.00 4.00 5.00 6.00 5.00 24.50 0.00b0.00 0.00 44.50
1956-570.00 0.00 0.00 0.00 9.00 -----z3.00a4.20 5.00 1.50 0.00 0.00 22.70a
1957-580.00 0.00 0.00 0.00 -----z0.50d0.00d0.00a1.50 0.00 0.00 0.00 2.00a
1958-590.00 0.00 0.00 0.00 0.00a-----z-----z-----z-----z0.00a0.00 0.00 0.00d
1959-600.00 0.00 0.00 0.00 -----z-----z-----z2.50 4.50 0.00 0.00 0.00 7.00c
1960-610.00 0.00 0.00 0.00 0.00 0.20 0.00c-----z15.00 3.00 0.00 0.00 18.20a
1961-620.00 0.00 0.00 0.00 2.30 16.00 1.00a21.50 19.50 14.00 0.00 0.00 74.30
1962-630.00 0.00 0.00 0.00 0.00a2.00 7.80 6.30 9.80 0.00 0.00 0.00 25.90
1963-640.00 0.00 0.00 0.00 0.00 5.80 5.00 0.00 5.00 0.00 0.00 0.00 15.80
1964-650.00 0.00 0.00 0.00 4.50 6.00 9.00 15.00a18.50 0.00 0.00 0.00 53.00
1965-660.00 0.00 0.00 0.00 0.00 0.00 15.50 3.50 5.00 0.00 0.00 0.00 24.00
1966-670.00 0.00 0.00 0.00 0.00 14.00 16.80 11.50 2.00 0.00 0.00 0.00 44.30
1967-680.00 0.00 0.00 0.00 1.00 -----z2.00 -----z0.00 0.00 0.00 0.00 3.00b
1968-690.00 0.00 0.00 0.00 -----z30.00 15.30 0.00 6.50 0.00 0.00 0.00 51.80a
1969-700.00 0.00 0.00 0.00 0.00 23.00a6.00 1.00 11.00 -----z0.00 0.00 41.00a
1970-710.00 0.00 0.00 0.00 0.00 12.00 23.70 15.00 0.00 0.00 0.00 0.00 50.70
1971-720.00 0.00 0.00 0.00 3.00a5.00 9.50 3.00 9.00 3.00 0.00 0.00 32.50
1972-730.00 0.00 0.00 0.00 0.00 16.80e14.50 6.00 0.00 14.60 0.00 0.00 51.90
1973-740.00 0.00 0.00 0.00 0.00 11.70 1.40 11.60 -----z0.00 0.00 0.00 24.70a
1974-750.00 0.00 0.00 0.00 0.00 6.40 15.30 11.80 12.00 1.00 0.00 0.00 46.50
1975-760.00 0.00 0.00 0.00 2.00 0.00 10.50 2.00 5.00 0.00 0.00 0.00 19.50
1976-770.00 0.00 0.00 0.00 0.00 3.00a8.30 2.00 4.00a0.00 0.00 0.00 17.30
1977-780.00 0.00 0.00 -----z7.00 -----z-----z2.20 2.80 0.00 0.00 0.00 12.00c
1978-790.00 0.00 0.00 0.00 5.00 12.50 19.00 8.10 0.00a1.00 0.00 0.00 45.60
1979-800.00 0.00 0.00 0.00 2.50 0.00a6.30a4.50 15.50 5.00 0.00 0.00 33.80
1980-810.00 0.00 0.00 0.00 -----z7.10 1.50 8.00 1.00 0.00 0.00 0.00 17.60a
1981-820.00 0.00 0.00 0.00 5.00 11.50 23.00a3.70 3.20 3.50 0.00 0.00 49.90
1982-830.00 0.00 0.00 0.00 0.00 3.50 7.70 17.00 5.00 3.00 0.00 0.00 36.20
1983-840.00 0.00 0.00 0.00 9.00 7.00 5.00 0.00a7.00c0.00 0.00 0.00 28.00
1984-850.00 0.00 0.00 0.00 0.00a16.00 9.10 4.60 13.40 4.00 0.00 0.00 47.10
1985-860.00 0.00 0.00 0.00 14.20 19.60 8.50 12.00 0.00 0.50 0.00 0.00 54.80
1986-870.00 0.00 0.00 0.00 9.50 0.00a8.00 0.00 10.00 0.00 0.00 0.00 27.50
1987-880.00a0.00 0.00 0.00 0.00 8.80 18.50 6.30 2.00 0.00 0.00 0.00 35.60
1988-890.00 0.00 0.00 0.00 0.10 2.00o4.00 8.10 20.00 0.00 0.00 0.00 32.20a
1989-900.00 0.00 0.00 0.00 5.00 6.00 7.70 8.00 0.00b0.00 0.00 0.00 26.70
1990-910.00 0.00 0.00 0.00 0.00 13.00e12.30a2.00 0.00 0.00 0.00 0.00 27.30
1991-920.00 0.00 0.00 0.00 13.00c9.20 3.10 1.00a0.00c0.00 0.00 0.00 26.30
1992-930.00 0.00 0.00 0.00 -----z5.50e10.50a10.00a3.00c0.10 0.00 0.00 29.10a
1993-940.00 0.00 0.00 0.00 1.00a1.00a11.50a11.50 0.00 2.40 0.00 0.00 27.40
1994-950.00 0.00 0.00 0.00 4.00 3.80 2.20b0.70 12.00 0.00 0.00 0.00 22.70
1995-960.00 0.00 0.00 0.00 3.00a1.80c27.50 0.00 0.00d0.00 0.00 0.00 32.30
1996-970.00 0.00 0.00 0.00 0.00f6.00f1.50e2.60a0.00c0.00 0.00 0.00 4.10b
1997-980.00 0.00 0.00 0.00 2.00 0.00a8.50b6.00 10.10 0.00 0.00 0.00 26.60
1998-990.00 0.00 0.00 0.00 0.50 3.00a26.50 3.00 6.00 0.00 0.00 0.00 39.00
1999-000.00 0.00 0.00 0.00 0.00 2.50 13.10a1.00b0.00 0.00 0.00 0.00 16.60
2000-010.00 0.00a0.00r0.00o2.00n22.70 4.00 7.50 8.00 0.00 0.00 0.00u42.20d
2001-020.00 0.00k0.00 0.00 0.00 1.50 2.80 8.50 4.00 9.00 0.00 0.00r25.80b
2002-030.00p0.00h0.00 0.00 1.50 2.00 5.00 3.50 7.10 2.00 0.00 0.00 21.10b
2003-040.00 0.00 0.00 0.00 0.00 4.00 7.00 8.90 5.00c0.00 0.00 0.00 24.90
2004-050.00 0.00 0.00 0.00 0.00 4.10 11.30 8.00 13.60a0.00 0.00 0.00a37.00
2005-060.00 0.00 0.00 0.00 3.00 14.00 0.00 8.00 11.00 0.00 0.00 0.00 36.00
2006-070.00 0.00 0.00a0.00 4.00 0.00 10.00 23.00 6.00 4.00 0.00 0.00 47.00
2007-080.00 0.00 0.00 0.00 1.00 23.50a13.00b11.10a5.10 0.10 0.00 0.00 53.80
2008-090.00 0.00 0.00 0.00 0.00 26.50 11.30 11.00 2.00 0.00 0.00 0.00 50.80
2009-100.00 0.00 0.00 2.00 0.00 18.10 4.70 13.20 0.00 0.00 0.00 0.00 38.00
2010-110.00 0.00 0.00 0.00 0.00 39.00 10.10 14.50a2.00 3.00 0.00 0.00 68.60
2011-120.00a0.00 0.00a0.00 0.00 5.20 9.50 1.00 0.00 0.00 0.00 0.00 15.70
2012-130.00 0.00 0.00 0.00 0.00 15.30 3.10 14.40 22.00 1.00 5.00 0.00 60.80
2013-140.00 0.00 0.00 0.00 1.00 9.70 18.70 9.00 5.40 2.00 0.00 0.00 45.80
2014-150.00 0.00 0.00 0.00 5.60 2.90 8.10 4.20 8.40 0.00 0.00 0.00 29.20
2015-160.00 0.00 0.00 0.00 0.00 8.70 4.30 10.00 12.10 0.00 0.00 0.00 35.10
2016-170.00 0.00 0.00 0.00 0.00 15.50 12.70 8.40 5.10 0.00 0.00 0.00 41.70
2017-180.00 0.00 0.00 0.00 0.00 3.60 10.90 8.00 5.00 17.40 0.00 0.00 44.90
2018-190.00 0.00 0.00 0.00 2.60 2.50 15.00 43.40 6.50a3.50 0.00 0.00 73.50
2019-200.00 0.00 0.00 0.00 7.10 5.60 9.10 9.00 0.60 4.20 0.00 0.00 35.60
2020-210.00 0.00 0.00 2.00 0.80 3.00 12.00 6.00a4.50 0.00 0.00 0.00 28.30
2021-220.00 0.00 0.00 0.00 0.00 12.90 9.00 3.30 0.00 0.00 0.00 0.00 25.20
2022-230.00 0.00 0.00 0.00 3.60 18.70 11.00a11.60 10.00b7.00 0.00 0.00 61.90
2023-240.00 0.00 0.00 0.20 0.80 1.20 7.20 1.10 5.00c-----z-----z-----z15.50c
Period of Record Statistics
MEAN0.00 0.00 0.00 0.07 2.49 9.34 9.30 7.70 6.72 1.76 0.07 0.00 40.05
S.D.0.00 0.00 0.00 0.35 3.68 8.21 6.22 6.76 7.30 3.58 0.58 0.00 16.91
SKEW0.00 0.00 0.00 5.06 2.01 1.10 0.81 2.06 1.81 2.80 8.49 0.00 0.95
MAX0.00 0.00 0.00 2.00 17.50 39.00 27.50 43.40 40.00 17.40 5.00 0.00 91.30
MIN0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15.70
YRS75 74 75 73 74 73 82 82 83 76 75 73 56