Consecutive Days Minimum Temperature <= 0 F Boise, Idaho (all locations) The record beginning in 1879 shows six periods of a week or more of consecutive days with minimum temperatures zero F or colder. They include the following: Year Dates Temperatures 1883 2/2 - 2/8 -2, -11, -12, -10, -8, -1, -3 1888 1/6 - 1/19 0, -12, -18, -19, -10, -7, 0, -9, -22, -26, -28, -17, -14, -9 1890 1/5 - 1/11 0, -4, -9, -9, -8, -5, -12 1924 12/22 - 12/28 0, -4, -9, -18, -18, -6, -5 1972 w+ 12/7 - 12/15 0, -19, -21, -23, -22, -9, -14, -9, -7 1985 12/11 - 12/30 -2, -3, 0, -6, -5, -2, -2, -3, -3, -1, -3, -5, -6, -5, -6, -8, -7, -9, -7, -7 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Season Date(s) Temperatures 1879-80 12/24 -4 1882-83 12/31-1/2 -4, -8, -10 1/17-1/19 -20, -27, -16 1/21 -2 1/23 -3 2/2-2/8 -2, -11, -12, -10, -8, -1, -3 1883-84 2/11-2/14 -1, -8, -4, -6 1884-85 12/31-1/1 -3, -7, -7 1885-86 1/20 -1 1887-88 1/6-1/19 0, -12, -18, -19, -10, -7, 0, -9, -22, -26, -28, -17, -14, -9 1889-90 1/5-1/11 0, -4, -9, -9, -8, -5, -12 1893-94 1/4-1/5 0, -1 1898-99 c 2/3-2/6 -1, -9, -7, -6 1901-02 c 1/25-1/26 -3, -8 c 1/28-1/29 -2, -6 1904-05 w+ 2/12 -2 1909-10 c+ 1/2-1/6 -1, -6, -8, -2, -3 1911-12 w+ 1/7-1/8 -3, -5 1915-16 c- 12/31-1/1 -2, -2 1919-20 w- 12/7 -2 w- 12/12-12/15 -4, -7, -5, -4 1921-22 c+ 12/18-12/20 -8, -10, -2 c+ 12/22-12/23 0, 0 1922-23 c 12/16 -2 1924-25 c+ 12/17-12/20 -1, -5, -5, -3 c+ 12/22-12/28 0, -4, -9, -18, -18, -6, -5 1926-27 c- 12/14 -3 c- 1/21-1/22 -2, 0 1928-29 c+ 1/23 -7 c+ 2/6 -1 c+ 2/9 0 1929-30 c+ 12/16-12/17 0, -4 c+ 12/20-12/23 -4, -13, -16, -17 1932-33 w- 12/11-12/15 -2, -4, -5, -3, -7 w- 2/7 -1 w- 2/9-2/10 -13, -7 w- 2/13 -5 1934-35 c- 1/20 -6 1935-36 2/7-2/8 -3, -3 1936-37 c- 1/6-1/9 -9, -14, -13, -5 c- 1/12 0 1941-42 w+ 12/31-1/1 0, -13 w+ 1/3-1/7 -4, -8, -10, -10, -9 1942-43 c+ 1/17-1/18 -1, -10 1946-47 w- 1/14-1/15 -2, -10 w- 1/17 -1 1948-49 12/23 0 1/4 -3 1/9-1/13 -2, -5, -6, -3, -1 1/20-1/22 -7, 0, -1 1949-50 c+ 12/20 -1 c+ 1/30-2/3 -8, -17, -10, -9, -6 1951-52 w+ 1/3 -2 1955-56 c+ 11/15 -3 c+ 1/30-2/2 -3, -5, -6, -4 1956-57 c- 1/26-1/30 -8, -9, -6, -9, -9 1959-60 c- 1/17-1/18 -1, -4 1961-62 c+ 1/20-1/24 -6, -12, -11, -12, -4 1962-63 c 1/11-1/12 -5, -7 c 1/19 -1 1972-73 w+ 12/5 -6 w+ 12/7-12/15 0, -19, -21, -23, -22, -9, -14, -9, -7 1973-74 c+ 1/8-1/11 0, -5, -4, -2 1974-75 1/1-1/2 0, -5 1976-77 w- 1/6-1/10 -4, -5, -14, -13, -8 1978-79 12/29-1/1 0, -2, -9, -10 1/6-1/8 -6, -10, -9 1/26 -8 1/29 -8 1/31-2/3 -12, -5, -12, 0 1979-80 1/27-1/30 -7, -4, 0, 0 1981-82 c 1/6-1/7 -10, -1 c 1/9-1/11 0, -2, -2 c 2/6 0 c 2/8 0 1982-83 w+ 12/29 0 w+ 1/1-1/2 -1, -2 1983-84 12/20-12/23 -6, -8, -15, -18 12/27-12/28 -4, -4 1/17-1/21 -7, -13, -10, -8, -2 1984-85 12/18-12/21 -1, -6, -5, -1 1/30-2/1 -7, -2, -1 2/3-2/5 -9, -12, -4 1985-86 11/21-11/22 -2, -3 11/26 -3 12/11-12/30 -2, -3, 0, -6, -5, -2, -2, -3, -3, -1, -3, -5, -6, -5, -6, -8, -7, -9, -7, -7 1986-87 w+ 1/16 0 1987-88 w- 1/2 0 w- 1/18-1/19 -1, -2 1988-89 c+ 12/28 -4 c+ 1/25 0 c+ 1/27 0 c+ 1/4-1/9 -14, -15, -11, -13, -10, -7 1990-91 12/20-12/25 -8, -23, -25, -18, -20, -20 12/29-12/30 -17, -9 1/1-1/6 -4, -4, -5, -9, -12, -5 1992-93 w+ 12/6 0 1993-94 11/24 0 1998-99 c+ 12/21-12/22 -2, 0 2009-10 w 12/7-12/10 0, -6, -4, 0 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Number of Days Minimum Temperature <= 0 F monthly/annual lows in parentheses length of record in brackets November December January February Annual 1879-80 0 1(-4) 0 0 1(-4) 1880-81 0 0 0 0 0 1881-82 0 0 0 0 0 1882-83 0 1(-4) 7(-27) 7(-12) 15(-27) 1883-84 0 0 0 4(-8) 4(-8) 1884-85 0 1(-3) 2(-7) 0 3(-7) 1885-86 0 0 1(-1) 0 1(-1) 1886-87 0 0 0 0 0 1887-88 0 0 14(-28) 0 14(-28) 1888-89 0 0 0 0 0 1889-90 0 0 7(-12) 0 7(-12) 1890-91 0 0 0 0 0 1891-92 0 0 0 0 0 1892-93 0 0 0 0 0 1893-94 0 0 2(-1) 0 2(-1) 1894-95 0 0 0 0 0 1895-96 0 0 w+ 0 w+ 0 w+ 0 1896-97 0 w+ 0 0 0 0 1897-98 0 c 0 c 0 c 0 c 0 1898-99 0 c 0 c 0 c 4(-9) c 4(-9) 1899-00 0 c- 0 w 0 w 0 w 0 1900-01 0 w+ 0 0 0 0 1901-02 0 w+ 0 c 0 c 4(-8) c 4(-8) 1902-03 0 w 0 w 0 w 0 w 0 1903-04 0 c 0 c+ 0 c+ 0 c+ 0 1904-05 0 w- 0 w+ 0 w+ 1(-2) w+ 1(-2) 1905-06 0 w+ 0 w+ 0 w+ 0 w+ 0 1906-07 0 c+ 0 c- 0 c- 0 c- 0 1907-08 0 0 0 0 0 1908-09 0 c+ 0 w- 0 w- 0 w- 0 1909-10 0 c 0 c+ 5(-8) c+ 0 c+ 5(-8) 1910-11 0 c+ 0 c 0 c 0 c 0 1911-12 0 w+ 0 w+ 2(-5) w+ 0 w+ 2(-5) 1912-13 0 w- 0 w 0 w 0 w 0 1913-14 0 w+ 0 w- 0 w- 0 w- 0 1914-15 0 w+ 0 w+ 0 w+ 0 w+ 0 1915-16 0 w 1(-2) c- 1(-2) c- 0 c- 2(-2) 1916-17 0 c+ 0 c+ 0 c+ 0 c+ 0 1917-18 0 c+ 0 c+ 0 c+ 0 c+ 0 1918-19 0 w- 0 w+ 0 w+ 0 w+ 0 1919-20 0 w 5(-7) w- 0 w- 0 w- 5(-7) 1920-21 0 0 c+ 0 c+ 0 c+ 0 1921-22 0 c+ 5(-10) c+ 0 c+ 0 c+ 5(-10) 1922-23 0 c 1(-2) c 0 c 0 c 1(-2) 1923-24 0 w+ 0 w- 0 w- 0 w- 0 1924-25 0 c+ 11(-18) c+ 0 c+ 0 c+ 11(-18) 1925-26 0 w+ 0 w+ 0 w+ 0 w+ 0 1926-27 0 c- 1(-3) c- 2(-2) c- 0 c- 3(-3) 1927-28 0 w- 0 0 0 0 1928-29 0 c+ 0 c+ 1(-7) c+ 2(-1) c+ 3(-7) 1929-30 0 c 6(-17) c+ 0 c+ 0 c+ 6(-17) 1930-31 0 0 0 0 0 1931-32 0 c- 0 w- 0 w- 0 w- 0 1932-33 0 w- 5(-7) w- 0 w- 4(-13) w- 9(-13) 1933-34 0 c- 0 c 0 c 0 c 0 1934-35 0 0 c- 1(-6) c- 0 c- 1(-6) 1935-36 0 c 0 0 2(-3) 2(-3) 1936-37 0 w- 0 c- 5(-14) c- 0 c- 5(-14) 1937-38 0 0 c 0 c 0 c 0 1938-39 0 c+ 0 c+ 0 c+ 0 c+ 0 1939-40 0 c 0 w 0 w 0 w 0 1940-41 0 w+ 0 w+ 0 w+ 0 w+ 0 1941-42 0 w+ 1(0) w+ 6(-13) w+ 0 w+ 7(-13) 1942-43 0 c 0 c+ 2(-10) c+ 0 c+ 2(-10) 1943-44 0 c 0 w- 0 w- 0 w- 0 1944-45 0 c- 0 c- 0 c- 0 c- 0 1945-46 0 c- 0 0 0 0 1946-47 0 w 0 w 3(-10) w 0 w 3(-10) 1947-48 0 c 0 0 0 0 1948-49 0 1(0) w- 9(-7) w- 0 w- 10(-7) 1949-50 0 1(-1) c+ 2(-17) c+ 3(-10) c+ 6(-17) 1950-51 0 c+ 0 c+ 0 c+ 0 c+ 0 1951-52 0 w+ 0 c+ 1(-2) c+ 0 c+ 1(-2) 1952-53 0 0 w 0 w 0 w 0 1953-54 0 w 0 0 0 0 1954-55 0 c- 0 c 0 c 0 c 0 1955-56 1(-3) c+ 0 c+ 2(-5) c+ 2(-6) c+ 5(-6) 1956-57 0 c+ 0 c- 5(-9) c- 0 c- 5(-9) 1957-58 0 w 0 w+ 0 w+ 0 w+ 0 1958-59 0 0 w+ 0 w+ 0 w+ 0 1959-60 0 c 0 c- 2(-4) c- 0 c- 2(-4) 1960-61 0 c- 0 0 0 0 1961-62 0 c- 0 c+ 5(-12) c+ 0 c+ 5(-12) 1962-63 0 c+ 0 c 3(-7) c 0 c 3(-7) 1963-64 0 w+ 0 w 0 w 0 w 0 1964-65 0 c+ 0 0 0 0 1965-66 0 w+ 0 w 0 w 0 w 0 1966-67 0 0 c+ 0 c+ 0 c+ 0 1967-68 0 0 c- 0 c- 0 c- 0 1968-69 0 0 w+ 0 w+ 0 w+ 0 1969-70 0 w 0 w 0 w 0 w 0 1970-71 0 c+ 0 c+ 0 c+ 0 c+ 0 1971-72 0 c+ 0 c- 0 c- 0 c- 0 1972-73 0 w+ 10(-23) w+ 0 w+ 0 w+ 10(-23) 1973-74 0 c+ 0 c+ 4(-5) c+ 0 c+ 4(-5) 1974-75 0 c+ 0 2(-5) 0 2(-5) 1975-76 0 c+ 0 c+ 0 c+ 0 c+ 0 1976-77 0 0 w- 5(-14) w- 0 w- 5(-14) 1977-78 0 w+ 0 w+ 0 w+ 0 w+ 0 1978-79 0 3(-9) 7(-12) 3(-12) 13(-12) 1979-80 0 0 0 4(-7) 4(-7) 1980-81 0 0 0 0 0 1981-82 0 0 c 5(-10) c 2(0) c 7(-10) 1982-83 0 w+ 1(0) w+ 2(-2) w+ 0 w+ 3(-2) 1983-84 0 c- 6(-18) 5(-13) 0 11(-18) 1984-85 0 4(-6) 2(-7) 4(-12) 10(-12) 1985-86 3(-3) 20(-9) 0 0 23(-9) 1986-87 0 w- 0 w+ 0 w+ 1(0) w+ 1(0) 1987-88 0 w 0 w- 0 w- 3(-2) w- 3(-2) 1988-89 0 c+ 0 c+ 1(-4) c+ 8(-15) c+ 9(-15) 1989-90 0 c- 0 w+ 0 w+ 0 w+ 0 1990-91 0 w- 8(-25) w+ 6(-12) 0 14(-25) 1991-92 0 w+ 0 w+ 0 w+ 0 w+ 0 1992-93 0 w 0 w+ 1(0) w+ 0 w+ 1(0) 1993-94 0 w 1(0) 0 0 1(0) 1994-95 0 w+ 0 w 0 w 0 w 0 1995-96 0 0 c- 0 c- 0 c- 0 1996-97 0 0 0 0 0 1997-98 0 w+ 0 w+ 0 w+ 0 w+ 0 1998-99 0 2 c+ 0 c+ 0 c+ 2(-2) 1999-00 0 c 0 c+ 0 c+ 0 c+ 0 2000-01 0 0 0 0 0 2001-02 0 0 0 0 0 2003-04 0 w 0 w 0 w 0 w 0 2004-05 0 w 0 w 0 w 0 w 0 2005-06 0 0 0 0 0 2006-07 0 w+ 0 w+ 0 w 0 0 2007-08 0 c+ 0 c+ 0 c+ 0 c+ 0 2008-09 0 0 0 c- 0 c 0 2009-10 0 4 w 0 w+ 0 w 4 2010-11 0 c+ 0 c+ 0 c+ 0 c+ 0 totals 3[131] 96[131] 132[131] 64[131] 292[131] averages .02 0.7 1.0 0.5 2.2 4/14/2011 c = la nina w = el nino weak c- or w- moderate c or w strong c+ or w+ days minimum zero or below at boise.txt http://www.wrh.noaa.gov/boise/index.shtml