McAllen, TX: September

30 September 2026: September 2026 averaged 92°F in McAllen, TX, the warmest September on record, in 85 years since 1941 (1967 excluded: 11 of 30 days missing); provisional.

September 2026

Mean temperature: 92°F; Warmest on record; Warmest of 85, provisional
Precipitation: 0.25 in; Driest since 2011; 3rd driest of 83

A normal September in McAllen, TX (1991 to 2020): a mean temperature of 83.6°F, between 81.4°F and 87°F in eight years of ten and 4.39 in of precipitation, between 1.72 in and 9.91 in in eight years of ten.

The mean temperature of every September in McAllen, TX since 1941: 92°F in 2026, the highest of them all.

Normal range, 81.4 to 87°F

Every year, ranked, as a table

Every September in McAllen, TX from 1941 to 2026, ranked: the mean temperature, the mean high and the mean low from the warmest, the precipitation from the wettest; a year missing more than a tenth of its days is not ranked.

Year	Mean, °F	Rank	High, °F	Rank	Low, °F	Rank	Precipitation, in	Rank	Days missing
2026	92	1	103.2	1	80.7	1	0.25	81	0
2025	87.5	5	98	5	76.9	6	0.27	80	0
2024	85.9	11	95.2	20	76.6	7	5.28	22	0
2023	89.3	2	101.2	2	77.4	4	0.66	73	0
2022	83.7	29	93.9	34	73.4	39	3.83	39	0
2021	85.1	17	96	13	74.2	26	1.97	59	0
2020	82.8	46	92.6	50	72.9	45	4.66	27	0
2019	87.1	6	97	7	77.1	5	2.60	53	0
2018	87	7	95.5	17	78.6	2	5.91	15	0
2017	86.4	9	96.9	8	75.9	10	2.44	56	0
2016	88.8	3	100	3	77.6	3	1.69	63	0
2015	85.5	14	95.2	20	75.9	10	5.44	19	0
2014	82.3	57	90.1	71	74.5	21	11.23	1	0
2013	83	44	91	64	75	17	6.22	13	0
2012	85.6	13	96.5	9	74.6	19	1.90	60	0
2011	87.7	4	100	3	75.5	14	trace	82	0
2010	83.5	36	92.7	48	74.4	24	3.63	45	0
2009	85.2	16	94.3	28	76	9	3.86	38	0
2008	80.5	77	90	73	71.1	71	3.41	46	0
2007	83.7	29	92.9	44	74.5	21	1.73	62	0
2006	83.6	33	93	42	74.2	26	11.21	2	0
2005	86.7	8	97.5	6	75.8	12	1.08	71	0
2004	82.7	49	91.9	61	73.4	39	5.31	21	0
2003	82.1	59	90.1	71	74.1	30	10.89	3	0
2002	82.7	49	92.3	58	73.1	42	7.54	9	0
2001	81.4	66	90.5	69	72.3	54	4.47	30	0
2000	83.2	39	94.8	24	71.6	67	2.69	52	0
1999	82.1	59	92.3	58	71.8	62	2.53	55	0
1998	83.6	33	91.4	63	75.8	12	9.49	7	0
1997	84.5	20	95.5	17	73.5	37			0
1996	83.5	36	92.4	57	74.5	21			0
1995	84.5	20	95.1	22	74	32	5.07	24	0
1994	81	68	90.7	67	71.4	69	5.17	23	0
1993	84.3	23	94.3	28	74.3	25	4.30	33	0
1992	83.8	28	93.4	36	74.2	26	4.58	28	0
1991	80.6	75	89.5	79	71.7	66	3.70	42	0
1990	83.7	29	92.3	58	75.1	16	9.74	4	0
1989	82.8	46	94.2	31	71.4	69	0.44	76	0
1988	82.5	54	92.8	45	72.2	56	5.44	19	0
1987	85.3	15	96.5	9	74.1	30	3.29	47	0
1986	86.1	10	95.8	15	76.4	8	1.81	61	0
1985	85	18	95.1	22	75	17	4.25	35	0
1984	79.3	83	86.9	85	71.6	67	6.37	12	0
1983	83.2	39	93.3	39	73	44	3.00	49	0
1982	84.9	19	96.3	11	73.4	39	2.19	58	0
1981	83.2	39	94.6	26	71.8	62	0.58	74	0
1980	85.7	12	96.1	12	75.4	15	2.76	51	0
1979	79.6	82	89.6	77	69.6	79	2.80	50	0
1978	81.9	61	89.5	79	74.2	26	3.69	44	0
1977	84.2	26	93.8	35	74.6	19	5.04	25	0
1976	81.5	65	91	64	72.1	59	4.45	31	0
1975	79.3	83	88.8	83	69.7	78	2.33	57	0
1974	80.1	79	89.9	76	70.4	73	6.88	10	2
1973	82.7	49	91.8	62	73.6	36	9.68	5	0
1972	84.3	23	94.7	25	74	32	1.27	69	0
1971	80.6	75	88.7	84	72.5	50	9.42	8	0
1970	80.7	74	89.6	77	71.8	62	6.41	11	0
1969	81.6	63	90.6	68	72.5	50	3.73	41	0
1968	82.4	55	92.6	50	72.1	59	3.28	48	0
1967									11
1966	84	27	95.9	14	72.2	56	0.33	78	0
1965	83.4	38	94.1	32	72.7	47	5.45	18	0
1964	83.7	29	93.4	36	73.9	35	1.42	65	0
1963	82.6	52	93	42	72.1	59	4.51	29	0
1962	83.6	33	94.3	28	72.8	46	2.59	54	0
1961	80.9	69	90	73	71.8	62	4.02	37	0
1960	79.9	80	91	64	68.9	83	4.34	32	1
1959	84.5	20	95.4	19	73.5	37	0.28	79	0
1958	83.2	39	92.5	53	74	32	4.30	33	0
1957	81.6	63	92.8	45	70.4	73	1.05	72	0
1956	81.8	62	93.3	39	70.4	73	1.33	68	0
1955	80.8	72	88.9	82	72.7	47	3.76	40	0
1954	82.9	45	93.4	36	72.5	50	4.14	36	0
1953	80.9	69	93.2	41	68.7	85	0.43	77	0
1952	80.9	69	92.5	53	69.3	81	0.50	75	0
1951	82.4	55	92.5	53	72.3	54	5.75	16	0
1950	84.3	23	95.8	15	72.7	47	1.20	70	0
1949	82.8	46	92.5	53	73.1	42	1.34	67	0
1948	79.3	83	89.3	81	69.4	80	9.65	6	0
1947	82.2	58	94.6	26	69.9	77	trace	82	0
1946	83.2	39	94.1	32	72.2	56	5.67	17	0
1945	81.3	67	92.6	50	70	76	1.62	64	0
1944	80.4	78	90	73	70.7	72	3.70	42	0
1943	79.9	80	90.4	70	69.3	81	5.95	14	0
1942	80.8	72	92.7	48	68.9	83	1.37	66	0
1941	82.6	52	92.8	45	72.4	53	4.89	26	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2026	92
2023	89.3
2016	88.8
2011	87.7
2025	87.5
2019	87.1
2018	87
2005	86.7
2017	86.4
1986	86.1

Coldest
Year	Mean, °F
1984	79.3
1975	79.3
1948	79.3
1979	79.6
1960	79.9
1943	79.9
1974	80.1
1944	80.4
2008	80.5
1991	80.6
More years share the last value

Wettest
Year	Precipitation, in
2014	11.23
2006	11.21
2003	10.89
1990	9.74
1973	9.68
1948	9.65
1998	9.49
1971	9.42
2002	7.54
1974	6.88

Driest
Year	Precipitation, in
2011	trace
1947	trace
2026	0.25
2025	0.27
1959	0.28
1966	0.33
1953	0.43
1989	0.44
1952	0.50
1981	0.58

The hottest, coldest and wettest days

Hottest day: 107°F; 10 September 2026
Coldest night: 75°F; 5 September 2026
Wettest day: 0.17 in; 5 September 2026

Every month, season and year

Months

Seasons

Years

McAllen, TX the day's answers

All-time records

Every answer in words

September 2026 brought 0.25 in of precipitation in McAllen, TX, the driest September since 2011, 3rd driest of 83.
The hottest day of September 2026 in McAllen, TX: 107°F on Thursday 10 September 2026.
The coldest night of September 2026 in McAllen, TX: a low of 75°F on Saturday 5 September 2026.
The wettest day of September 2026 in McAllen, TX: 0.17 in on Saturday 5 September 2026.