Using data up to Aug 2012 from the NOAA, these are the months ranked in the coldest 10 for a state that occurred this supposedly warm century (2000 – Aug 2012).

If Rank = 1,  it is the coldest. The Anomaly is the difference from the 1981 to 2010 30 year average.

For example, Nov 2000 was the coldest November in Arizona as long as NOAA has put out data (since 1895). The average temp was 44.2 which was -6.5F colder than the 30 year average.

At the bottom is a list of anomalies -10F or colder that occurred since 2000.

Amazingly, North Dakota 2002 Mar had an -11.1F anomaly and it was only ranked as the 9th coldest March with an average temperature of 16.2F. Brrr.

State	Year	Month	Average F	Anomaly F	Rank
Alabama	2000	Dec	39.1	-7.6	3
Alabama	2004	Aug	76.4	-3.1	3
Alabama	2010	Feb	40.1	-8.3	6
Alabama	2010	Dec	40.2	-6.5	5
Arizona	2000	Nov	44.2	-6.5	1
Arkansas	2000	Dec	31.6	-9.9	2
Arkansas	2003	Jun	73.4	-3.3	7
Arkansas	2004	Jul	77.9	-2.5	10
Arkansas	2004	Aug	75.3	-4.5	4
Arkansas	2006	Sep	69.2	-3.1	7
Arkansas	2007	Apr	57.3	-3.4	10
Arkansas	2007	Jul	77.6	-2.8	6
Arkansas	2009	Jul	77.6	-2.8	7
Arkansas	2009	Oct	56.4	-4.9	4
Arkansas	2010	Feb	35.8	-8.1	7
California	2000	Nov	47.4	-4.3	3
California	2003	Apr	52.3	-4.5	9
California	2006	Mar	46	-6.5	2
Colorado	2000	Nov	27.7	-7.1	5
Colorado	2006	Sep	54.1	-4.1	5
Colorado	2007	Jan	18.3	-6.8	8
Colorado	2009	Oct	41	-5.6	2
Connecticut	2000	Jul	67.8	-4	5
Connecticut	2004	Jan	18.7	-7.6	10
Connecticut	2005	May	53.2	-4.5	4
Connecticut	2009	Jul	68.2	-3.6	6
Delaware	2000	Jul	73.2	-3.8	3
Delaware	2001	Jul	73.1	-3.9	2
Delaware	2003	May	58.5	-4.5	6
Delaware	2005	May	58.2	-4.8	5
Florida	2001	Sep	77.6	-1.9	7
Florida	2003	Jan	52.4	-5.3	6
Florida	2005	Apr	66.6	-2.7	6
Florida	2008	Nov	61.4	-4.6	9
Florida	2010	Jan	52.4	-5.3	7
Florida	2010	Feb	52.3	-8.2	4
Florida	2010	Mar	58.7	-6.1	4
Florida	2010	Dec	50	-9.9	1
Georgia	2000	Sep	72.2	-1.8	9
Georgia	2000	Dec	40.4	-7.4	4
Georgia	2001	Sep	71.8	-2.2	4
Georgia	2005	May	68	-2.7	7
Georgia	2008	Nov	51.5	-4.3	9
Georgia	2010	Feb	41.5	-8	6
Georgia	2010	Mar	51.4	-4.8	10
Georgia	2010	Dec	39.5	-8.3	1
Idaho	2000	Nov	27.3	-6	4
Idaho	2002	Oct	42.2	-3.3	10
Idaho	2008	Apr	38.3	-5.6	7
Idaho	2009	Oct	41.1	-4.4	7
Idaho	2010	May	46.8	-5.2	4
Illinois	2000	Dec	17.6	-12.3	2
Illinois	2003	Jun	67.8	-4	10
Illinois	2004	Aug	68.5	-5	4
Illinois	2009	Jul	70.2	-5.1	1
Illinois	2009	Oct	49.6	-4.5	7
Indiana	2000	Jul	71.8	-2.4	10
Indiana	2000	Dec	19.3	-11.8	2
Indiana	2004	Aug	68.6	-4.1	4
Indiana	2006	Sep	62.4	-3.1	10
Indiana	2007	Feb	20.4	-10.9	5
Indiana	2007	Jul	71.7	-2.5	9
Indiana	2009	Jul	69	-5.2	1
Indiana	2009	Oct	50.3	-3.6	10
Iowa	2000	Dec	10	-13.1	2
Iowa	2002	Oct	45.8	-4.8	6
Iowa	2004	Aug	66.2	-5.2	3
Iowa	2009	Jul	68	-5.6	1
Iowa	2009	Oct	44.4	-6.2	3
Kansas	2000	Nov	36.8	-6.1	5
Kansas	2000	Dec	24.3	-7.7	5
Kansas	2002	Oct	50.3	-5.5	4
Kansas	2004	Jul	75	-3.7	7
Kansas	2004	Aug	72.3	-4.8	6
Kansas	2006	Sep	63.9	-4.1	5
Kansas	2009	Oct	48.2	-7.6	2
Kentucky	2000	Dec	26.9	-10	4
Kentucky	2003	Jun	69	-3.8	7
Kentucky	2004	Aug	71.2	-4.1	6
Kentucky	2006	Sep	64.6	-3.6	7
Kentucky	2009	Jul	71.7	-4.6	2
Kentucky	2009	Oct	53.4	-3.6	10
Kentucky	2010	Dec	28.6	-8.3	5
Louisiana	2000	Dec	43.8	-7.2	3
Louisiana	2004	Aug	79.6	-2.5	6
Louisiana	2007	Jul	80.2	-2	8
Louisiana	2010	Feb	44.4	-8.5	5
Maine	2000	Jul	63	-3	5
Maine	2002	Oct	41.6	-2.7	8
Maine	2003	Apr	35.7	-4	8
Maine	2004	Jan	6.6	-7.3	4
Maine	2004	Jun	57.4	-3.4	7
Maine	2005	May	46.9	-4.3	7
Maine	2008	Mar	22.6	-4.2	10
Maine	2009	Jan	7.5	-6.4	8
Maine	2009	Jul	63.2	-2.8	7
Maine	2009	Oct	40.9	-3.4	4
Maryland	2000	Jul	71.7	-4.2	2
Maryland	2000	Dec	28.7	-7.9	7
Maryland	2001	Jul	71.9	-4	4
Maryland	2005	May	58.2	-4.3	7
Maryland	2009	Jul	72.7	-3.2	9
Massachusetts	2000	Jul	67.3	-3.2	6
Massachusetts	2001	Jul	67.6	-2.9	9
Massachusetts	2004	Jan	17.5	-7.7	6
Massachusetts	2005	May	51.1	-5	6
Massachusetts	2009	Jul	67.3	-3.2	7
Michigan	2000	Dec	16.5	-8.8	4
Michigan	2004	Aug	63	-4	5
Michigan	2009	Jan	12.9	-7.3	10
Michigan	2009	Jul	63.2	-5.3	2
Minnesota	2000	Dec	3	-12.1	3
Minnesota	2002	Mar	18.9	-9.2	9
Minnesota	2002	May	49.8	-5.4	10
Minnesota	2002	Oct	37.5	-7.5	3
Minnesota	2004	Aug	60.8	-6.3	1
Minnesota	2009	Jul	64.3	-5	3
Minnesota	2009	Oct	39.8	-5.2	5
Mississippi	2000	Dec	38.3	-8.5	3
Mississippi	2001	Oct	60.7	-3.4	10
Mississippi	2004	Aug	76.4	-3.9	3
Mississippi	2010	Feb	40	-8.6	5
Mississippi	2010	Dec	41.8	-5	10
Missouri	2000	Dec	21.3	-11.8	2
Missouri	2003	Jun	69.1	-3.8	8
Missouri	2004	Jul	74.4	-2.9	10
Missouri	2004	Aug	70.7	-5.4	5
Missouri	2009	Jul	72.9	-4.4	4
Missouri	2009	Oct	50.5	-5.6	5
Montana	2000	Nov	22.2	-8.5	4
Montana	2002	Mar	19.9	-13.5	5
Montana	2002	Oct	37.3	-6.6	4
Montana	2003	Nov	24.2	-6.5	10
Montana	2009	Oct	37.2	-6.7	3
Montana	2009	Dec	11.6	-9.3	5
Montana	2010	May	47.9	-4.1	10
Nebraska	2000	Nov	28.3	-8.4	3
Nebraska	2000	Dec	18.5	-7.3	7
Nebraska	2002	Oct	44.1	-6	4
Nebraska	2004	Aug	68.3	-4.1	4
Nebraska	2006	Sep	58.4	-4.4	5
Nebraska	2009	Jul	70.1	-4.3	6
Nebraska	2009	Aug	69.1	-3.3	10
Nebraska	2009	Oct	41.9	-8.2	2
Nebraska	2009	Dec	18.7	-7.1	9
Nevada	2000	Nov	33.3	-5.6	3
Nevada	2009	Dec	24.7	-6.1	8
Nevada	2010	May	50	-6.5	10
New Hampshire	2000	Jul	64.3	-3.5	6
New Hampshire	2004	Jan	10.7	-7.9	8
New Hampshire	2005	May	49	-4.8	8
New Hampshire	2009	Jul	64.2	-3.6	4
New Hampshire	2009	Oct	43	-3.2	8
New Jersey	2000	Jul	70.9	-4	2
New Jersey	2001	Jul	71.3	-3.6	7
New Jersey	2003	May	56.8	-3.9	6
New Jersey	2005	May	56.5	-4.2	5
New Mexico	2000	Nov	37.1	-6.2	2
New Mexico	2006	Sep	60.9	-4.3	2
New York	2000	Jul	65.1	-3.7	2
New York	2001	Jul	66.2	-2.6	10
New York	2009	Jul	65.6	-3.2	4
North Carolina	2000	Dec	35.7	-7	6
North Carolina	2001	Jul	74.9	-2.8	5
North Carolina	2001	Sep	67.9	-2.2	10
North Carolina	2004	Aug	74.1	-2.3	9
North Carolina	2005	May	63.3	-3.1	8
North Carolina	2009	Jul	75.3	-2.4	10
North Carolina	2010	Dec	33.7	-9	3
North Dakota	2000	Dec	2.9	-11.1	7
North Dakota	2002	Mar	16.2	-11.1	9
North Dakota	2002	May	48.6	-5.4	8
North Dakota	2002	Oct	34.5	-8.7	4
North Dakota	2003	Nov	19.7	-7.7	10
North Dakota	2004	Aug	61.2	-6.3	2
North Dakota	2009	Jul	64.4	-4.6	6
North Dakota	2009	Oct	37.7	-5.5	6
Ohio	2000	Jul	70	-3	6
Ohio	2000	Dec	21.6	-10.1	4
Ohio	2007	Feb	19.4	-11.4	4
Ohio	2009	Jul	68.8	-4.2	1
Oklahoma	2000	Nov	43.2	-6.1	4
Oklahoma	2000	Dec	30.9	-8.1	4
Oklahoma	2002	Oct	56.6	-4.3	8
Oklahoma	2003	Jun	73.4	-3.1	8
Oklahoma	2003	Sep	68.8	-3.4	7
Oklahoma	2004	Jul	77.9	-3.5	6
Oklahoma	2004	Aug	75.7	-5.1	5
Oklahoma	2006	Sep	68.9	-3.3	8
Oklahoma	2007	Apr	55.2	-4	8
Oklahoma	2009	Oct	54.4	-6.5	2
Oregon	2000	Nov	34.7	-4.6	9
Oregon	2008	Apr	42.3	-4.3	7
Oregon	2009	Oct	46	-3.2	10
Oregon	2010	May	49.4	-4	10
Oregon	2011	Apr	42.2	-4.4	5
Oregon	2011	May	48.9	-4.5	7
Pennsylvania	2000	Jul	67.3	-3.5	2
Pennsylvania	2000	Dec	22.9	-7.8	5
Pennsylvania	2001	Jul	68.1	-2.7	6
Pennsylvania	2005	May	53.3	-4.5	4
Pennsylvania	2007	Feb	20	-9.1	8
Pennsylvania	2008	May	53.6	-4.2	7
Pennsylvania	2009	Jul	66.7	-4.1	1
Rhode Island	2004	Jan	20.4	-8.7	3
Rhode Island	2005	May	52.6	-4.2	6
South Carolina	2000	Dec	38.3	-7.9	4
South Carolina	2001	Sep	71	-2.1	8
South Carolina	2004	Aug	76.8	-2.3	9
South Carolina	2005	May	67	-2.8	7
South Carolina	2008	Nov	50.1	-4.3	10
South Carolina	2010	Feb	40.4	-7.3	6
South Carolina	2010	Dec	37.8	-8.4	2
South Dakota	2000	Nov	24.5	-7.9	7
South Dakota	2000	Dec	10.7	-9.8	6
South Dakota	2002	Mar	22.1	-10.9	8
South Dakota	2002	Oct	39.5	-7.7	4
South Dakota	2004	Aug	65.9	-5	3
South Dakota	2009	Jul	67.8	-4.9	6
South Dakota	2009	Oct	39.2	-8	2
Tennessee	2000	Dec	30.6	-9	4
Tennessee	2003	Jun	70.7	-3.2	7
Tennessee	2004	Aug	72.1	-4.3	3
Tennessee	2009	Jul	73.6	-3.8	3
Tennessee	2010	Feb	32.8	-8.3	9
Tennessee	2010	Dec	32.2	-7.4	5
Texas	2000	Nov	51	-5.1	6
Texas	2000	Dec	42.3	-5	6
Texas	2004	Aug	79.2	-2.9	6
Texas	2007	Apr	61.6	-3.6	8
Texas	2007	Jul	79.1	-3.3	2
Texas	2008	Sep	73	-2.7	10
Texas	2009	Dec	42.9	-4.4	9
Texas	2010	Feb	43.2	-7.3	6
Utah	2000	Nov	30.5	-6.6	2
Utah	2009	Dec	20.2	-7.1	8
Utah	2010	May	51.7	-5.1	9
Vermont	2000	Jul	63.8	-3.4	5
Vermont	2001	Jul	64.2	-3	6
Vermont	2004	Jan	7.3	-9.4	6
Vermont	2005	May	49.2	-4.2	10
Virginia	2000	Jul	72.3	-3	7
Virginia	2000	Dec	30	-7.8	4
Virginia	2001	Jul	71.9	-3.4	3
Virginia	2005	May	59.5	-3.5	7
Virginia	2009	Jul	71.9	-3.4	4
Virginia	2010	Dec	30.1	-7.7	5
Washington	2000	Nov	34.2	-4.4	6
Washington	2008	Apr	42.7	-4.9	4
Washington	2009	Oct	45.7	-2.9	6
Washington	2011	Apr	42.3	-5.3	2
West Virginia	2000	Jul	69.1	-2.9	4
West Virginia	2000	Dec	25.8	-8.2	6
West Virginia	2005	May	55.9	-4.1	8
West Virginia	2007	Feb	23.7	-10.2	4
West Virginia	2009	Jul	67.8	-4.2	1
West Virginia	2010	Dec	24.9	-9.1	4
Wisconsin	2000	Dec	9.1	-10.8	6
Wisconsin	2002	Oct	41.9	-4.6	7
Wisconsin	2004	Aug	62.1	-5.2	3
Wisconsin	2009	Jul	63.7	-5.5	2
Wisconsin	2009	Oct	41.9	-4.6	8
Wyoming	2000	Nov	19.3	-11	1
Wyoming	2002	Oct	37.7	-5.4	7
Wyoming	2009	Oct	35.7	-7.4	3
Wyoming	2009	Dec	13.6	-6.9	8
Wyoming	2010	May	45.2	-5	8
Wyoming	2011	May	45.4	-4.8	10

Anomalies since 2000 of -10 or colder.

State	Year	Month	Average F	Anomaly F	Rank
Illinois	2000	Dec	17.6	-12.3	2
Indiana	2000	Dec	19.3	-11.8	2
Indiana	2007	Feb	20.4	-10.9	5
Iowa	2000	Dec	10	-13.1	2
Kentucky	2000	Dec	26.9	-10	4
Minnesota	2000	Dec	3	-12.1	3
Missouri	2000	Dec	21.3	-11.8	2
Montana	2002	Mar	19.9	-13.5	5
North Dakota	2000	Dec	2.9	-11.1	7
North Dakota	2002	Mar	16.2	-11.1	9
Ohio	2000	Dec	21.6	-10.1	4
Ohio	2007	Feb	19.4	-11.4	4
South Dakota	2002	Mar	22.1	-10.9	8
West Virginia	2007	Feb	23.7	-10.2	4
Wisconsin	2000	Dec	9.1	-10.8	6
Wyoming	2000	Nov	19.3	-11	1