Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather from the Southern Plains to the Great Lakes

Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, thunderstorms, and coastal impacts to the Marianas Islands into Wednesday. Typhoon conditions are likely over CNMI and tropical storm conditions over Guam. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes today. Read More >

*** This webpage will no longer be updated after the end of 2022 ***

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September Normals, Means and Extremes Houston
(last updated on 9/30/2022)

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September Normals, Means and Extremes for Houston Normals 1991-2020. Temperature Records 1889-Present. Rainfall Records 1889-Present.
Date	Normal High (F)	Normal Low (F)	Record High (F)	Record Low (F)	Rec Low Max (F)	Rec High Min (F)	Normal Cumulative Precip Monthly - Yearly (in)	Record Precipitation (inches)
1	93	74	107 - 2000	63 - 1915	78 - 1970	84 - 2020	0.17 - 33.94	2.22 - 1892
2	93	74	104 - 2000	60 - 1893	79 - 1984	83 - 2020	0.33 - 34.10	1.81 - 1969
3	93	74	105 - 2000	60 - 1987	73 - 1974	80 - 1985	0.50 - 34.27	3.20 - 1957
4	93	73	109 - 2000	59 - 1974	76 - 1974	80 - 1962	0.67 - 34.44	2.75 - 1973
5	92	73	108 - 2000	55 - 1891	75 - 1967	80 - 1963	0.84 - 34.61	2.07 - 1973
6	92	73	99 - 2019	56 - 1974	76 - 1918	80 - 1963	1.02 - 34.79	2.90 - 1896
7	92	73	99 - 2019	59 - 2011	76 - 1921	78 - 1926	1.21 - 34.98	4.55 - 1913
8	92	73	100 - 1907	58 - 1988	78 - 1957	79 - 1949	1.40 - 35.17	0.87 - 1962
9	92	72	100 - 1909	59 - 1988	75 - 1974	80 - 1962	1.60 - 35.37	4.22 - 1900
10	92	72	99 - 1993	59 - 1988	73 - 1948	78 - 2014	1.78 - 35.55	1.82 - 1998
11	91	72	99 - 2011	56 - 1907	74 - 1894	79 - 2010	1.95 - 35.72	4.81 - 1998
12	91	72	101 - 2011	56 - 1907	77 - 1892	79 - 1982	2.11 - 35.88	2.25 - 2003
13	91	72	102 - 2011	56 - 1907	76 - 1894	80 - 1993	2.27 - 36.04	7.73 - 2008
14	91	71	100 - 2011	55 - 1902	67 - 1913	81 - 1962	2.42 - 36.19	4.11 - 2008
15	91	71	98 - 1980	55 - 1892	76 - 1993	79 - 1962	2.58 - 36.35	3.23 - 1919
16	90	71	98 - 1995	53 - 1979	75 - 1922	79 - 1962	2.72 - 36.49	1.72 - 1941
17	90	70	100 - 1995	55 - 2000	69 - 1943	79 - 2006	2.87 - 36.64	1.85 - 1968
18	90	70	99 - 1927	54 - 2000	71 - 1943	82 - 1889	3.02 - 36.79	2.53 - 1908
19	90	70	97 - 1995	51 - 1981	70 - 1971	78 - 1965	3.16 - 36.93	9.21 - 2019
20	90	70	99 - 1999	54 - 1901	68 - 1971	79 - 1924	3.31 - 37.08	7.66 - 1976
21	89	69	100 - 2005	53 - 1983	70 - 1983	79 - 1964	3.45 - 37.22	3.07 - 1958
22	89	69	100 - 2005	49 - 1983	67 - 1995	81 - 2006	3.59 - 37.36	3.14 - 1965
23	89	69	96 - 2022	49 - 1999	72 - 1928	79 - 2000	3.74 - 37.51	2.37 - 1941
24	89	68	95 - 2022	48 - 1975	72 - 2001	78 - 1945	3.88 - 37.65	2.22 - 1933
25	89	68	99 - 2005	50 - 1994	71 - 1957	78 - 1958	4.03 - 37.80	3.05 - 1906
26	88	68	99 - 2005	49 - 2000	64 - 1889	79 - 2005	4.17 - 37.94	2.86 - 1896
27	88	67	100 - 2005	45 - 1942	71 - 1942	78 - 2005	4.31 - 38.08	3.46 - 1944
28	88	67	98 - 1998	48 - 1909	68 - 1936	79 - 1959	4.45 - 38.22	1.25 - 1902
29	88	67	96 - 2011	47 - 1908	67 - 1984	78 - 1955	4.58 - 38.35	2.51 - 1985
30	88	67	95 - 1998	47 - 1890	67 - 1985	78 - 1986	4.71 - 38.48	2.55 - 1913
Month	90.4	70.6	109 - 2000	45 - 1942	64 - 1889	84 - 2020	4.71 inches	9.21 - 2019

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Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather from the Southern Plains to the Great Lakes

Houston IAH Normals/Means/Extremes - Sep