According to NOAA/NCDC , last month 20 states had their warmest 12 months starting in 2011. (I still have reservations about NCDC’s adjustments)

This month it is still 20 states.

	sc	State	FirstMonth	LastMonth
1	001	Alabama	1931-Sep	1932-Aug
2	002	Arizona	1896-Jan	1896-Dec
3	003	Arkansas	1931-Sep	1932-Aug
4	004	California	1995-Sep	1996-Aug
5	005	Colorado	1933-Sep	1934-Aug
6	006	Connecticut	2011-Aug	2012-Jul
7	007	Delaware	2011-Apr	2012-Mar
8	008	Florida	1948-Mar	1949-Feb
9	009	Georgia	1931-Jun	1932-May
10	010	Idaho	1933-Jun	1934-May
11	011	Illinois	2011-Aug	2012-Jul
12	012	Indiana	2011-Aug	2012-Jul
13	013	Iowa	2011-Aug	2012-Jul
14	014	Kansas	1933-Sep	1934-Aug
15	015	Kentucky	1931-Sep	1932-Aug
16	016	Louisiana	1998-May	1999-Apr
17	017	Maine	1913-Jan	1913-Dec
18	018	Maryland	2011-Apr	2012-Mar
19	019	Massachusetts	2011-Aug	2012-Jul
20	020	Michigan	1920-Oct	1921-Sep
21	021	Minnesota	2011-Aug	2012-Jul
22	022	Mississippi	1931-Sep	1932-Aug
23	023	Missouri	2011-Jun	2012-May
24	024	Montana	1933-Jun	1934-May
25	025	Nebraska	1933-Sep	1934-Aug
26	026	Nevada	1933-Jun	1934-May
27	027	New Hampshire	2011-Jul	2012-Jun
28	028	New Jersey	2011-Jun	2012-May
29	029	New Mexico	1999-Oct	2000-Sep
30	030	New York	2011-Jun	2012-May
31	031	North Carolina	1931-Sep	1932-Aug
32	032	North Dakota	2011-Aug	2012-Jul
33	033	Ohio	2011-Jun	2012-May
34	034	Oklahoma	2011-Jun	2012-May
35	035	Oregon	1933-Dec	1934-Nov
36	036	Pennsylvania	1931-Mar	1932-Feb
37	037	Rhode Island	2011-Jun	2012-May
38	038	South Carolina	1931-Sep	1932-Aug
39	039	South Dakota	2011-Aug	2012-Jul
40	040	Tennessee	1931-Sep	1932-Aug
41	041	Texas	1998-May	1999-Apr
42	042	Utah	1933-Jun	1934-May
43	043	Vermont	2011-Aug	2012-Jul
44	044	Virginia	1931-Sep	1932-Aug
45	045	Washington	1991-Jul	1992-Jun
46	046	West Virginia	1931-Jul	1932-Jun
47	047	Wisconsin	2011-Aug	2012-Jul
48	048	Wyoming	1933-Jun	1934-May

	sc	Region	FirstMonth	LastMonth
49	101	Northeast Region	2011-Jun	2012-May
50	102	East North CentralRegion	2011-Aug	2012-Jul
51	103	Central Region	2011-Jun	2012-May
52	104	Southeast Region	1931-Sep	1932-Aug
53	105	West North Central Region	2011-Aug	2012-Jul
54	106	South Region	2011-Jun	2012-May
55	107	Southwest Region	1999-Oct	2000-Sep
56	108	Northwest Region	1933-Dec	1934-Nov
57	109	West Region	1933-Jun	1934-May
58	110	USA Contiguous 48 States	2011-Aug	2012-Jul