Year,Depart From 1940-2024 Average,Contiguous U.S. (Lower 48),DewPt,Jul,(%) 1940,-0.519 1941,3.589 1942,-0.241 1943,-2.181 1944,-3.358 1945,3.035 1946,-1.757 1947,-1.333 1948,-0.448 1949,1.117 1950,3.837 1951,-0.827 1952,-6.75 1953,-3.013 1954,-7.7 1955,-0.329 1956,-3.928 1957,-3.324 1958,1.139 1959,-0.778 1960,-1.939 1961,0.751 1962,1.177 1963,-0.888 1964,-0.796 1965,0.907 1966,-2.379 1967,2.53 1968,1.517 1969,2.413 1970,-1.01 1971,-0.615 1972,1.512 1973,1.14 1974,-2.674 1975,3.293 1976,1.452 1977,-0.524 1978,0.532 1979,1.387 1980,-3.626 1981,2.722 1982,4.099 1983,0.445 1984,1.075 1985,-1.274 1986,2.094 1987,2.762 1988,-2.16 1989,0.761 1990,1.379 1991,0.784 1992,6.191 1993,4.329 1994,0.406 1995,1.37 1996,1.57 1997,3.319 1998,3.461 1999,3.138 2000,0.058 2001,1.784 2002,0.923 2003,-1.059 2004,3.142 2005,-2.411 2006,-4.186 2007,-1.545 2008,-2.388 2009,-1.5 2010,1.375 2011,-1.773 2012,-4.223 2013,0.404 2014,-1.148 2015,1.859 2016,-1.514 2017,-0.847 2018,-0.909 2019,-0.089 2020,-1.192 2021,1.79 2022,-2.323 2023,-1.701 2024,0.615