Houston, Texas, Average Temperature Rankings, March 1949 1991-2020 Degrees Fahrenheit 1 63.1 65.6 -2.5 39 54 1931 2020 1948 1946 normal 2022 2 61.5 62.6 -1.1 57 35 1947 2017 1948 1945 normal 1956 3 58.7 60.4 -1.7 45 46 1978 2017 1948 1945 normal 4 58.9 59.7 -0.8 56 35 1978 2017 1948 1935 normal 1975,2007 5 59.3 60.5 -1.2 52 39 1978 2017 1948 1935 normal 1953,1956,1967 6 61.3 62.7 -1.4 43 43 1977 2017 1948 1935 normal 1998 7 63.8 65.5 -1.7 39 47 1977 2017 1948 1939 normal 1939,1994,2015 8 66.6 68.1 -1.5 42 44 1977 2017 1948 1935 normal 1982,1993,1994,2015 9 68.7 70.0 -1.3 45 40 1977 2017 1948 1935 normal 1993,1994 10 70.3 71.4 -1.1 51 34 1977 2017 1948 1935 normal 1996,1998,2002 11 71.0 72.0 -1.0 51 34 1977 2017 1948 1935 normal 1996,2002 12 71.1 72.0 -0.9 52 32 1977 2017 1948 1935 normal 18 67.2 68.9 -1.7 31 50 1978 2017 1942 1936 normal 24 70.4 72.0 -1.6 31 49 1978 2017 1942 1935 normal 1934,1983,2015 36 -99 72.0 -99 -99 -99 1979 2018 normal 48 -99 72.0 -99 -99 -99 1980 2019,2020 normal 60 -99 72.0 -99 -99 -99 1980,1981 2020 normal