Byrd temperature 1980 - - -24.8 -21.9 -26.0 -35.0 -25.8 -28.9 -34.5 -27.6 -22.4 -14.8 1981 - -23.1 -23.9 -31.4 -32.1 -30.0 -35.8 -43.0 -35.2 -28.9 -23.1 -14.7 1982 -13.7 -20.0 -29.9 -38.8 -35.8 -30.5 -36.6 -31.8 -36.3 -30.0 -21.7 -13.1 1983 -15.1 -26.5 -27.9 -28.4 -29.5 -39.6 -40.0 -42.5 -34.1 -31.1 -22.9 -15.7 1984 -15.3 -19.5 -21.6 -27.6 -29.7 -28.9 -40.1 -39.2 -36.8 -25.3 -20.2 -12.8 1985 -13.6 -23.0 -27.3 -28.5 - -30.3 -41.4 -39.1 -33.4 -29.1 -16.3 -15.7 1986 -14.8 -19.8 -27.8 -27.6 -27.0 -36.9 -36.4 -40.6 -44.7 -29.8 -20.8 -14.3 1987 -13.8 -19.1 -32.9 -32.9 -31.3 -28.8 -28.3 -32.1 -34.2 -28.4 -23.5 -14.0 1988 -13.6 -20.7 - - - - - - - - - - 1989 - - - - - - - - - - - - 1990 - -20.7 -33.3 -30.7 -28.4 -39.9 -37.7 -41.6 -31.4 - - - 1991 - -16.4 -30.0 -29.3 -31.1 -33.2 -36.8 -38.8 -32.2 -26.7 -21.1 -11.3 1992 -15.1 -23.2 -23.5 -29.6 -24.8 - - - - - - - 1993 - - - - - - - - - - - - 1994 - -22.6 -30.6 -26.7 -30.9 -32.8 -34.0 -40.1 -37.7 -26.3 -17.5 -12.2 1995 -14.6 -17.4 -30.3 -30.1 -36.8 -27.4 -36.2 -35.7 -33.5 -32.1 -22.1 -14.4 1996 -14.2 -21.4 -27.6 - - - - - - - - - 1997 - -20.7 -27.6 -34.0 -35.1 -29.5 -35.8 -40.1 -34.5 -24.6 -18.8 -10.9 1998 -13.9 -16.1 -28.0 -34.0 -24.8 -26.7 -41.4 -35.7 -36.9 -33.0 -23.3 -15.0 1999 -13.2 -22.6 -27.0 -34.7 -33.8 - - - - - - -14.7 2000 -17.4 -19.7 -22.6 -34.8 -30.3 -31.0 -30.2 -35.2 - - - - 2001 - - - - - - - - - - - - 2002 -12.3 -19.3 -19.1 - - - - - - - - -13.2 2003 -11.1 -19.1 -21.7 -27.7 -31.0 -32.7 -35.6 -36.0 - - -19.8 -12.0 2004 -12.4 -20.1 -27.5 -29.1 - - - - - - - -13.2 2005 -8.4 -22.3 -27.7 -31.3 -29.8 - - - - - - - 2006 - -14.3 -28.4 -35.4 -36.9 -31.2 -36.1 -29.0 - -25.4 -18.2 -13.3 2007 -9.2 -18.7 -21.7 -25.2 -26.4 -28.8 -29.0 -36.7 - - -17.4 -13.0 2008 -11.2 -18.9 -22.2 -28.7 -31.5 - - - - -24.3 -21.6 -14.9 2009 -13.4 -20.0 -23.9 -27.6 -32.5 -33.7 -26.2 -33.0 -35.6 -30.3 -15.9 -11.0 2010 -13.0 -17.6 -21.4 -29.3 -35.4 -35.5 -40.2 -30.9 -33.0 -27.6 -21.7 -13.9 2011 -14.9 -21.8 -26.0 -30.3 -31.6 -33.8 - - - - - -