Residential Energy Demand Temperature Index (REDTI)

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• Overview

Data Access

Region: Contiguous U.S. -- U.S. Climate Regions -- Northeast East North Central Central Southeast West North Central South Southwest Northwest West -- U.S. Census Divisions -- New England Middle Atlantic East North Central West North Central South Atlantic East South Central West South Central Mountain Pacific -- NWS Regions -- Eastern Region Southern Region Central Region Western Region -- States -- Alabama Arkansas Arizona California Colorado Connecticut Delaware Florida Georgia Iowa Idaho Illinois Indiana Kansas Kentucky Louisianna Massachusettes Maryland Maine Michigan Minnesota Missouri Mississippi Montana North Carolina North Dakota Nebraska New Hampshire New Jersey New Mexico Nevada New York Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Virginia Vermont Washington Wisconsin West Virginia Wyoming Month: January February March April May June July August September October November December Annual Period: 1-Month 3-Month 6-Month Year-to-Date

U.S. Climate Regions

U.S. Census Divisions

NWS Regions

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Year	REDTI	Degree Days
1895	47.4	258.9
1896	45.5	256.9
1897	49.1	260.6
1898	56.7	268.4
1899	60.3	272.1
1900	39.6	250.8
1901	55.3	267.0
1902	49.4	260.9
1903	0.0	210.1
1904	26.0	236.9
1905	45.1	256.5
1906	45.2	256.6
1907	14.6	225.1
1908	34.3	245.4
1909	45.1	256.5
1910	15.0	225.5
1911	74.9	287.2
1912	10.0	220.4
1913	27.4	238.3
1914	73.3	285.5
1915	29.1	240.0
1916	29.1	240.0
1917	31.1	242.1
1918	56.2	267.9
1919	42.1	253.4
1920	20.6	231.3
1921	59.2	271.0
1922	47.2	258.7
1923	47.7	259.2
1924	49.0	260.5
1925	79.9	292.3
1926	28.7	239.6
1927	24.0	234.8
1928	22.1	232.8
1929	24.4	235.2
1930	28.5	239.4
1931	51.2	262.8
1932	43.0	254.3
1933	68.3	280.4
1934	89.1	301.8
1935	24.2	235.0
1936	49.8	261.3
1937	48.4	259.9
1938	20.5	231.2
1939	60.2	272.0
1940	32.5	243.5
1941	30.8	241.8
1942	45.1	256.5
1943	89.2	301.9
1944	68.3	280.4
1945	35.3	246.4
1946	25.3	236.1
1947	29.1	240.0
1948	42.8	254.1
1949	57.7	269.5
1950	31.8	242.8
1951	34.2	245.3
1952	95.6	308.5
1953	82.7	295.2
1954	59.8	271.6
1955	1.7	211.8
1956	46.7	258.2
1957	50.5	262.1
1958	36.9	248.1
1959	40.5	251.8
1960	38.4	249.6
1961	12.9	223.4
1962	27.8	238.7
1963	36.7	247.9
1964	43.5	254.9
1965	18.4	229.0
1966	18.4	229.0
1967	28.7	239.6
1968	29.6	240.6
1969	37.5	248.7
1970	20.6	231.3
1971	59.7	271.5
1972	15.9	226.5
1973	44.0	255.4
1974	8.6	219.0
1975	32.4	243.4
1976	24.7	235.5
1977	42.0	253.3
1978	40.5	251.8
1979	15.4	225.9
1980	43.4	254.8
1981	71.1	283.3
1982	21.0	231.7
1983	17.6	228.2
1984	51.2	262.8
1985	34.9	246.0
1986	51.1	262.7
1987	52.0	263.6
1988	37.3	248.5
1989	31.1	242.1
1990	54.1	265.8
1991	53.5	265.2
1992	9.2	219.6
1993	36.9	248.1
1994	72.3	284.5
1995	24.0	234.8
1996	44.5	255.9
1997	12.9	223.4
1998	65.4	277.4
1999	40.7	252.0
2000	43.4	254.8
2001	43.2	254.6
2002	53.4	265.1
2003	18.7	229.3
2004	34.6	245.7
2005	63.8	275.7
2006	48.3	259.8
2007	47.5	259.0
2008	78.6	291.0
2009	53.3	264.9
2010	100.0	313.0
2011	84.4	296.9
2012	51.4	263.0
2013	57.2	269.0
2014	56.0	267.7
2015	64.0	276.0
2016	75.9	288.2
2017	50.0	261.6
2018	78.9	291.3
2019	44.2	255.6