WILLOW RESERVOIR, WI

Minimum of Minimum Temperature (Degrees Fahrenheit)

(479236)

File last updated on March 29, 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)JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECANN
1934-----z-----z-----z19.00 26.00 37.00 38.00 32.00a28.00 23.00 10.00 -23.00 -----z
1935-35.00a-26.00 -6.00 10.00 22.00 34.00 46.00 38.00 24.00 19.00 4.00 -12.00b-35.00c
1936-24.00a-38.00 -11.00 7.00 27.00 33.00 42.00 37.00 28.00 6.00 -8.00a-22.00 -38.00b
1937-32.00 -27.00 -15.00 11.00 19.00 28.00 36.00b42.00b29.00a21.00 -3.00a-15.00a-32.00g
1938-31.00 -41.00 -14.00 4.00a23.00 36.00a48.00 43.00e30.00f24.00 -1.00b-33.00c-41.00r
1939-22.00a-37.00 -11.00c-0.00d16.00f31.00l36.00a40.00 31.00 23.00b6.00b-8.00d-----z
1940-35.00c-38.00d-26.00 5.00 16.00 27.00 35.00 29.00 25.00 21.00 -9.00a-20.00a-38.00i
1941-15.00f-20.00 -19.00 12.00a20.00 30.00a36.00a31.00 23.00 19.00 -2.00 -4.00b-20.00k
1942-27.00b-28.00a-10.00b11.00 23.00a31.00 42.00 30.00a27.00a12.00a-11.00 -15.00 -28.00i
1943-28.00 -28.00 -32.00 4.00 17.00 41.00 43.00 41.00a30.00 30.00o1.00 -15.00 -32.00p
1944-11.00 -14.00 -26.00 9.00 27.00 30.00b43.00 32.00 28.00 14.00 14.00 -24.00 -26.00b
1945-25.00 -27.00 -27.00 15.00 20.00 28.00 39.00 33.00 20.00 19.00 9.00 -26.00 -27.00
1946-28.00 -29.00 3.00 15.00 26.00 28.00 35.00 37.00a27.00a17.00d2.00c-29.00a-29.00j
1947-29.00 -24.00a-12.00 10.00 16.00a30.00 36.00 36.00 18.00 22.00 -17.00 -17.00 -29.00b
1948-30.00 -30.00 -30.00 12.00a25.00 33.00a30.00 37.00 27.00 14.00 5.00 -20.00 -30.00b
1949-21.00 -30.00 -----z11.00 -----z29.00 40.00 32.00 22.00 23.00 6.00 -18.00 -----z
1950-40.00 -30.00 -26.00 -4.00 22.00 32.00 38.00 30.00 23.00 25.00 -13.00 -22.00 -40.00
1951-41.00 -37.00 -10.00 14.00 20.00 30.00 40.00 33.00 26.00 22.00 -10.00 -30.00 -41.00
1952-30.00 -20.00 -15.00 -4.00 26.00 33.00 35.00 37.00 30.00 12.00 -0.00 -8.00 -30.00
1953-22.00 -22.00 -24.00 11.00 25.00 31.00 34.00a39.00b30.00b20.00h-0.00a-23.00i-24.00w
1954-32.00d-22.00c-4.00c-5.00c19.00 32.00d41.00k33.00a26.00 20.00 17.00 -9.00 -----z
1955-26.00a-20.00 -16.00 20.00 22.00 36.00 45.00a39.00 25.00a24.00 -6.00b-24.00 -26.00e
1956-27.00 -24.00a-20.00 14.00 19.00 27.00 40.00 38.00 26.00 18.00 -15.00 -21.00a-27.00b
1957-25.00 -21.00 -22.00 10.00 20.00 28.00 41.00 34.00 23.00 20.00 -1.00 -21.00 -25.00
1958-16.00 -24.00 -0.00 16.00 21.00 23.00b39.00 32.00 29.00 23.00a-11.00a-24.00a-24.00e
1959-32.00 -32.00 -14.00 16.00 22.00 34.00 39.00 41.00 26.00 21.00 -11.00 -10.00 -32.00
1960-21.00 -19.00a-27.00 3.00 25.00 32.00 39.00 37.00 29.00 16.00 15.00 -21.00 -27.00a
1961-24.00 -21.00 -4.00 12.00a20.00 36.00 39.00 44.00 26.00a18.00 -4.00 -18.00 -24.00b
1962-32.00 -34.00 -40.00 9.00 29.00 29.00 40.00 37.00 28.00 8.00 15.00 -27.00 -40.00
1963-35.00 -34.00 -13.00 17.00 21.00 32.00 39.00 32.00 24.00 21.00 7.00 -23.00 -35.00
1964-19.00 -25.00 -8.00 3.00 26.00a26.00 42.00 31.00 23.00 16.00 -5.00a-22.00 -25.00b
1965-32.00 -28.00 -25.00 13.00 29.00b31.00 39.00 28.00 23.00 20.00 6.00 -7.00 -32.00b
1966-33.00 -29.00 -8.00 13.00 15.00 31.00 41.00 40.00 28.00 17.00 10.00a-18.00a-33.00b
1967-40.00 -38.00 -24.00 10.00 21.00 37.00 35.00 33.00 25.00 24.00 -5.00 -28.00 -40.00
1968-30.00 -21.00 -2.00 14.00 21.00 37.00 37.00 34.00 34.00 22.00 8.00 -23.00 -30.00
1969-23.00 -20.00 -15.00 13.00 28.00 34.00 40.00 40.00 31.00 10.00 1.00 -18.00 -23.00
1970-31.00 -33.00 -9.00 11.00 21.00 37.00 44.00 38.00 33.00 24.00 -5.00 -14.00 -33.00
1971-28.00 -38.00 -17.00 3.00 24.00 33.00 39.00 38.00 29.00 25.00 -0.00 -12.00 -38.00
1972-41.00 -33.00 -24.00 -3.00 27.00 31.00 33.00 37.00 29.00 17.00 3.00 -24.00 -41.00
1973-33.00 -20.00a13.00 14.00 25.00a45.00 44.00 43.00 28.00 25.00 7.00 -29.00 -33.00b
1974-34.00a-23.00 -17.00 8.00 20.00 34.00 45.00 34.00 23.00 22.00 9.00 -5.00 -34.00a
1975-24.00 -28.00 -14.00 2.00 29.00 35.00 41.00 38.00 28.00 20.00 -9.00 -18.00 -28.00
1976-30.00 -26.00 -11.00a15.00 22.00 41.00 40.00 33.00 20.00 7.00 -16.00a-28.00 -30.00b
1977-39.00 -25.00 -3.00 8.00 22.00 32.00 45.00 35.00 32.00 25.00 -6.00 -23.00 -39.00
1978-23.00 -27.00 -22.00 17.00 21.00 35.00 38.00 40.00 30.00 20.00 -10.00 -20.00 -27.00
1979-35.00 -40.00 -11.00 4.00 24.00 36.00 40.00 35.00 30.00 17.00 -2.00 -10.00 -40.00
1980-27.00 -27.00 -18.00 17.00 28.00 30.00 41.00 42.00 27.00n19.00 5.00 -22.00 -27.00n
1981-26.00 -26.00 -2.00 15.00 24.00 35.00b37.00 34.00 27.00 12.00 2.00 -17.00 -26.00b
1982-45.00a-37.00d-22.00 -14.00 27.00a28.00a40.00 37.00b31.00 18.00f5.00 -8.00c-45.00r
1983-24.00a-22.00a-9.00a6.00 23.00 34.00 39.00 43.00 31.00 23.00 12.00o-31.00s-----z
1984-36.00i-19.00 -29.00a13.00c22.00b36.00c39.00b35.00b18.00b10.00i-0.00g-23.00f-----z
1985-31.00b-31.00e-19.00c5.00d24.00a27.00k33.00 34.00a23.00a18.00q-22.00c-27.00a-----z
1986-25.00 -27.00 -18.00a14.00 23.00 27.00 35.00 32.00 27.00 22.00a-12.00 -20.00 -27.00b
1987-27.00 -13.00 -7.00a-5.00 24.00 28.00 39.00 31.00a30.00 21.00 7.00 -15.00a-27.00c
1988-27.00 -25.00 -8.00 22.00 24.00 37.00 41.00 46.00 35.00 9.00a16.00 -13.00 -27.00a
1989-21.00 -28.00 -19.00a9.00 16.00b37.00 49.00 38.00 29.00 22.00a-5.00 -35.00 -35.00d
1990-10.00 -16.00 -16.00 15.00 24.00 36.00 44.00 35.00s36.00m26.00b13.00 -24.00a-----z
1991-31.00 -16.00a-3.00a19.00 31.00 -----z44.00a45.00 29.00b22.00 -2.00 -15.00m-----z
1992-20.00 -24.00 -13.00 10.00 27.00 34.00b40.00 40.00 28.00 11.00a8.00b-15.00 -24.00e
1993-21.00 -19.00 -16.00m12.00 25.00 36.00 46.00 40.00b26.00a20.00c5.00a-19.00 -21.00t
1994-35.00 -35.00a1.00l1.00 27.00 35.00a46.00a44.00 35.00 29.00m6.00j-4.00a-----z
1995-16.00b-20.00a-23.00a-9.00 31.00a37.00 48.00a51.00 28.00a28.00b-16.00n-18.00 -23.00w
1996-35.00a-43.00a-20.00a1.00b25.00 40.00b44.00 45.00 34.00 15.00a-6.00 -20.00b-43.00j
1997-30.00 -12.00b-8.00m6.00a25.00b46.00b42.00 44.00a39.00b23.00a-7.00 -10.00a-30.00y
1998-20.00c-6.00 -7.00l26.00 37.00 35.00a49.00 45.00a34.00a23.00c14.00a-21.00 -21.00v
1999-24.00 -15.00 -8.00a24.00 32.00 39.00a49.00a42.00b30.00 24.00b11.00 -18.00 -24.00g
2000-19.00a-31.00a2.00a19.00a30.00 37.00 45.00 45.00 34.00 27.00a8.00 -27.00b-31.00g
2001-13.00 -26.00 -12.00a20.00 33.00 41.00 42.00a46.00a34.00 28.00 20.00c-0.00 -26.00f
2002-7.00 -11.00 -16.00e-1.00a27.00a40.00a51.00b45.00a37.00 21.00h12.00l-3.00 -----z
2003-18.00a-26.00a-23.00 -4.00 29.00 35.00 49.00a45.00 31.00 25.00a5.00 -5.00 -26.00d
2004-23.00 -25.00 -8.00a19.00b24.00a35.00 45.00 41.00 31.00b26.00b14.00r-22.00a-----z
2005-25.00 -19.00 -15.00e26.00 28.00 45.00b45.00 44.00 33.00a29.00 -0.00a-6.00 -25.00i
2006-2.00 -25.00 -15.00l20.00 28.00 38.00 51.00a47.00 32.00 21.00 5.00 -2.00b-25.00o
2007-14.00 -26.00 -16.00j11.00 32.00 41.00 46.00c40.00 30.00 24.00a3.00 -13.00 -26.00n
2008-22.00 -24.00b-20.00 12.00c29.00 36.00 47.00 37.00b37.00a25.00a1.00a-18.00b-24.00l
2009-26.00a-21.00 -20.00b19.00 30.00 34.00 44.00 35.00a30.00a24.00 19.00a-13.00 -26.00f
2010-15.00a-12.00a1.00k23.00a28.00 37.00b49.00 43.00 33.00 25.00a7.00c-16.00c-16.00w
2011-24.00a-23.00 -15.00 17.00a25.00 36.00 51.00 44.00a30.00 25.00 12.00c-2.00 -24.00f
2012-21.00 -4.00 -0.00k23.00 31.00 35.00c50.00a41.00 29.00 20.00 6.00d-8.00 -21.00s
2013-19.00a-19.00 -15.00b5.00 25.00 34.00c45.00d41.00e30.00b24.00e-4.00c-26.00a-----z
2014-31.00 -26.00 -29.00c5.00 31.00b44.00m44.00a43.00f33.00 26.00 -7.00a-17.00 -----z
2015-27.00b-23.00 -22.00 20.00 27.00 33.00a42.00 40.00 31.00a23.00a6.00b12.00g-27.00n
2016-18.00b-18.00 4.00h11.00b29.00 37.00a46.00a46.00 42.00c31.00g14.00c-18.00 -----z
2017-27.00b-8.00 -2.00p24.00f25.00 37.00 45.00 41.00g35.00 24.00 7.00 -21.00 -----z
2018-22.00 -17.00 -8.00e-9.00 30.00 41.00 44.00 41.00 30.00 22.00 -0.00 -1.00 -22.00e
2019-29.00 -29.00 -21.00 16.00 27.00 37.00 47.00 35.00 44.00 20.00 -1.00 -15.00 -29.00
2020-19.00 -20.00 -2.00 10.00 24.00 38.00 50.00 44.00 31.00 15.00 16.00 -5.00 -20.00
2021-13.00 -31.00 4.00 15.00 25.00 43.00 45.00 43.00 39.00 29.00 8.00 -10.00 -31.00
2022-28.00 -19.00 -8.00 15.00 29.00 32.00 43.00 48.00 28.00 28.00 3.00 -15.00 -28.00
2023-26.00 -25.00 -12.00 10.00 31.00 34.00 43.00 38.00 34.00 22.00 4.00 4.00 -26.00
2024-11.00 -6.00 -2.00e-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
Period of Record Statistics
MEAN-25.80 -24.73 -14.48 10.31 24.88 34.31 41.91 38.51 29.15 20.59 1.65 -16.74 -31.02
S.D.7.97 8.05 9.43 8.23 4.30 4.52 4.68 5.09 4.81 5.15 9.04 8.26 5.57
SKEW0.28 0.15 0.13 -0.59 -0.01 0.17 -0.04 0.03 0.30 -0.92 -0.22 0.30 -0.37
MAX-2.00 -4.00 13.00 26.00 37.00 46.00 51.00 51.00 44.00 29.00 20.00 4.00 -20.00
MIN-45.00 -43.00 -40.00 -14.00 15.00 23.00 30.00 28.00 18.00 6.00 -22.00 -35.00 -41.00
YRS88 90 79 89 88 86 89 87 87 82 84 85 43