National Weather Service - Des Moines, IA

KDSM 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	69	83	61	81	38	1949	99	1913	0	1.77 1935
2	64	91	61	81	42	1893	98	2000	0	1.53 1912
3	70	86	61	81	40	1974	101	1939	0.01	1.62 1941
4	71	97	60	81	40	1891	99	1913	0	1.98 1994
5	65	92	60	80	44	1889	99	1925	0.02	1.69 1958
6	58	87	60	80	42	1988	100	1939	0	2.22 1911
7	60	74	59	80	41	1986	101	1939	Trace	2.57 2001
8	50	82	59	79	38	1883	99	1947	0	2.33 1989
9	51	77	58	79	40	1883	99	1955	0	1.92 1970
10	52	84	58	79	42	1910	99	1927	0	2.61 1972
11	60	94	57	78	40	1955	97	2000	0	1.28 1910
12	58	86	57	78	37	1902	96	1927	Trace	4.42 1961
13	51	64	57	77	33	1890	96	1939	0.72	3.78 1914
14	50	78	56	77	38	1879	97	1939	0	1.56 1914
15	52	80	56	77	37	2007	97	1927	0	1.67 1921
16	52	78	55	76	38	1984	97	1931	0	4.87 1914
17	51	69	55	76	37	1901	95	1925	0.23	1.52 1919
18	43	67	54	75	36	1916	94	1895	0	2.31 1919
19	49	84	54	75	33	1991	96	1948	0	1.67 1983
20	51	73	53	74	33	1991	92	1931	0	1.89 1894
21	53	73	53	74	35	1995	95	1937	Trace	1.59 1914
22	43	63	52	74	31	1995	98	1937	0	1.77 1961
23	36	67	52	73	32	1983	92	1892	0	2.12 1935
24	42	78	51	73	31	1942	88	1984	0	2.12 1931
25	53	85	51	72	32	1942	91	1897	0	3.29 1993
26	53	77	50	72	30	1926	90	1956	0	2.77 1936
27	47	76	50	71	31	1942	91	1956	0	3.25 1945
28	45	75	50	71	26	1942	99	1953	0	3.06 1973
29	48	83	49	70	28	1984	90	2002	0	1.38 1985
30	52	85	49	70	26	1899	92	1952	0	2.19 1911
Average	53.3	79.6	55.3	76.1					0.98 Normal = 3.05

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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