National Weather Service - Des Moines, IA

KOTM September, 2012
Date	Observed Low (F)	Observed High (F)	Normal Low (F)	Normal High (F)	Record Low (F)	Year	Record High (F)	Year	Observed Precipitation (inches)	Record Precipitation (inches)	Record Snow Fall (inches)
1	67	75	59	81	42	1949	103	1911	0.02	3.70 1931
2	63	86	59	81	40	1946	102	1897	0	2.45 1918
3	62	91	58	81	40	1974	100	1925	Trace	3.65 1926
4	68	94	58	80	43	1974	103	1925	0.01	1.17 1971
5	63	89	58	80	42	1962	107	1913	0.16	0.95 1902
6	55	85	57	80	43	2011	102	1913	0	1.57 1982
7	52	74	57	79	41	1956	101	1938	0.02	1.99 1941
8	46	77	56	79	43	2008	104	1912	0	2.47 1989
9	48	75	56	79	40	2008	102	1947	0	2.00 1921
10	46	81	55	78	40	1910	100	1912	0	1.90 1921
11	57	91	55	78	35	1940	101	1936	0	3.73 1913
12	59	90	55	78	35	1940	97	1939	Trace	1.95 1928
13	45	61	54	77	38	1902	99	1897	0.29	3.01 1961
14	43	74	54	77	35	1923	99	1939	0	5.32 1992
15	43	78	53	77	32	2007	99	1939	0	2.80 1926
16	43	76	53	76	32	1937	94	1931	0	1.62 1896
17	44	76	52	76	34	1937	98	1927	0.28	2.05 1978
18	41	65	52	75	33	1916	96	1910	0	2.60 1915
19	45	81	51	75	34	1991	96	1948	0	2.47 1965
20	45	72	51	74	32	2006	95	1940	0	3.31 1965
21	46	74	50	74	36	1999	95	1940	0	2.47 2009
22	35	62	50	74	33	1995	99	1937	0	1.89 1945
23	30	65	50	73	30	2012	93	1938	0	4.03 1902
24	33	75	49	73	32	1942	91	1984	0	0.93 1973
25	54	83	49	72	30	1928	89	1920	0	1.92 1930
26	50	76	48	72	29	1984	94	1938	0	2.75 1933
27	42	73	48	71	30	1942	92	1905	0	2.15 1988
28	34	73	47	71	23	1942	99	1953	0	1.99 1911
29	42	82	47	70	26	1899	93	1953	0	1.10 1927
30	45	80	47	70	26	1899	93	1897	0	3.87 1902
Average	48.2	77.8	52.9	76.0					0.78 Normal = 3.79

The special shading of colors in the Observed High/Low and Record High/Low/Year columns depict
observed monthly extremes and record monthly extremes and the years in which they occurred.

(The above data is unofficial and may contain errors.)
For official climate records, please contact...www.ncdc.noaa.gov.

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