National Weather Service - Des Moines, IA

KMCW September, 2011
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	70	96	55	78	35	1949	97	1913	0	1.75 1923
2	67	84	54	78	34	1928	99	1925	0.15	2.54 2006
3	54	77	54	78	34	1974	96	1925	0.35	1.22 1968
4	46	69	54	78	37	1930	100	1925	0	1.34 1920
5	39	71	53	77	36	1935	100	1913	0	3.32 1985
6	37	72	53	77	37	2011	103	1922	0	2.29 1938
7	40	75	53	77	36	1895	98	1939	0	3.23 1964
8	47	83	52	76	37	1995	96	1931	0	3.60 1941
9	53	84	52	76	34	1924	96	1955	0	2.33 1971
10	48	85	51	76	35	1935	98	1931	0	1.70 1896
11	51	89	51	75	31	1894	95	2000	0	1.84 1991
12	58	91	50	75	33	1940	95	1927	0	5.20 1978
13	47	71	50	75	34	1963	95	1939	Trace	4.35 1930
14	34	60	49	74	28	1923	95	1939	0	1.70 1909
15	26	59	49	74	26	2011	95	1939	0	2.86 1936
16	46	54	48	73	30	1937	94	1931	Trace	1.45 1925
17	49	62	48	73	31	1943	94	1925	Trace	2.77 1977
18	55	59	47	73	26	1929	92	1947	0.32	2.52 1942
19	45	76	47	72	25	1894	95	1948	0	4.57 1983
20	47	75	46	72	28	1897	90	1895	0.04	1.57 1948
21	50	61	46	71	29	1999	93	1937	0	1.40 1980
22	43	60	46	71	25	1913	94	1937	Trace	1.43 1959
23	34	65	45	70	30	1989	87	1938	0	1.63 2008
24	32	65	45	70	29	1950	87	1935	0	1.70 1972
25	36	67	44	70	26	1942	88	1920	0	2.00 1972
26	44	65	44	69	25	1984	89	1998	0.08	1.69 1924
27	48	67	43	69	22	1896	86	1963	0	1.52 1965
28	52	81	43	68	20	1942	89	1898	0	1.29 1929
29	50	71	42	68	24	1945	88	1922	Trace	1.06 1973
30			42	67	15	1899	91	1952		2.19 1925
Average	46.5	72.2	48.5	73.3					0.94 Normal = 3.27

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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