McAllen, TX: May

31 May 2026: May 2026 averaged 82.2°F in McAllen, TX, the warmest May since 2025, 30th warmest of 85.

May 2026

Mean temperature: 82.2°F; Warmest since 2025; 30th warmest of 85
Precipitation: 3.10 in; Wettest since 2023; 26th wettest of 84

A normal May in McAllen, TX (1991 to 2020): a mean temperature of 83.3°F, between 79°F and 84.8°F in eight years of ten and 1.22 in of precipitation, between 0.18 in and 5.18 in in eight years of ten.

The mean temperature of every May in McAllen, TX since 1942: 82.2°F in 2026; the highest is 88.1°F, in 2024.

Normal range, 79 to 84.8°F

Every year, ranked, as a table

Every May in McAllen, TX from 1942 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	82.2	30	91.6	31	72.7	29	3.10	26	0
2025	85.2	4	94.4	9	76.1	3	1.14	54	0
2024	88.1	1	98	1	78.2	1	2.45	35	0
2023	81.2	40	89.8	55	72.6	30	5.28	10	0
2022	84.2	11	94	12	74.4	13	3.33	23	1
2021	80.4	53	89.7	58	71.2	49	7.59	2	0
2020	83.4	20	93.2	17	73.5	20	6.32	6	0
2019	84.6	7	92.5	24	76.7	2	3.16	24	0
2018	85.5	2	96.4	2	74.7	9	0.73	67	0
2017	84.5	8	95.3	4	73.6	19	0.99	57	0
2016	83.8	14	92.9	21	74.6	12	6.95	3	0
2015	83	22	90.7	45	75.2	5	4.90	14	0
2014	79.1	72	89.8	55	68.4	78	0.80	62	0
2013	81	43	90.2	50	71.8	41	1.10	55	0
2012	82.8	24	92.5	24	73	24	2.10	39	0
2011	83.6	17	93.3	16	73.9	15	0.04	81	0
2010	82.1	31	91.3	38	72.8	28	2.94	29	0
2009	84.8	5	94.9	7	74.7	9	2.13	37	0
2008	84.8	5	95	6	74.7	9	0.22	77	0
2007	81.4	36	91.3	38	71.5	45	1.22	53	0
2006	83	22	94.2	11	71.8	41	0.73	67	0
2005	81.2	40	91.5	35	70.9	53	1.77	44	0
2004	79	73	89	70	69.1	69	1.32	51	0
2003	85.3	3	95.2	5	75.5	4	0.41	74	0
2002	83.1	21	93.5	14	72.6	30	1.00	56	0
2001	82.3	28	93.1	19	71.5	45	0.58	73	0
2000	84.3	9	94.3	10	74.4	13	0.04	81	0
1999	84	13	94.7	8	73.3	21	1.25	52	0
1998	84.3	9	95.5	3	73.1	23	0.00	84	0
1997	78.2	78	87.4	80	69	71			0
1996	84.1	12	93.2	17	75	6	0.72	69	0
1995	83.8	14	92.7	23	74.8	8	0.80	62	0
1994	81	43	89.6	61	72.5	33	1.81	42	0
1993	79	73	89.3	67	68.8	75	2.36	36	0
1992	77.4	82	85.5	83	69.3	67	6.77	4	0
1991	83.5	18	92	27	74.9	7	4.18	18	0
1990	82.4	27	91	42	73.7	16	3.86	19	0
1989	83.7	16	93.6	13	73.7	16	trace	83	0
1988	80.4	53	91.6	31	69.2	68	0.77	65	0
1987	80.7	49	90	52	71.5	45	4.57	16	0
1986	80.9	45	89.5	63	72.4	35	6.74	5	0
1985	81.4	36	90.7	45	72.2	36	3.37	21	0
1984	80.1	60	90.4	49	69.9	58	3.13	25	0
1983	80.2	58	88.8	72	71.6	44	1.40	49	0
1982	79.3	68	87.5	79	71.2	49	5.58	8	0
1981	80.1	60	90	52	70.2	56	5.54	9	0
1980	83.5	18	93.4	15	73.7	16	4.41	17	0
1979	79.9	62	90.8	44	69	71	2.75	31	0
1978	82.6	26	92	27	73.2	22	0.15	79	0
1977	80.3	55	88.7	75	71.9	40	0.96	58	0
1976	77	83	86.5	81	67.6	81	0.78	64	0
1975	81.9	33	90.9	43	72.9	25	5.01	11	0
1974	82.3	28	91.6	31	72.9	25	0.29	76	0
1973	79.2	71	89.6	61	68.8	75	0.82	61	0
1972	78	79	86.5	81	69.4	65	4.95	13	0
1971	80.2	58	89.4	66	71	52	1.43	48	0
1970	75.4	85	84.6	84	66.2	84	6.23	7	0
1969	79.4	67	89.5	63	69.4	65	1.78	43	0
1968	80.3	55	88.5	77	72	37	3.35	22	0
1967	80.7	49	91.1	41	70.3	55	1.86	41	0
1966	77	83	84.5	85	69.5	63	7.91	1	0
1965	80.9	45	88.8	72	72.9	25	5.00	12	0
1964	80.5	52	89.1	69	72	37	4.58	15	0
1963	79.7	63	88.5	77	70.9	53	2.48	34	0
1962	79.3	68	88.9	71	69.6	61	0.70	70	0
1961	81.3	39	91.5	35	71.1	51	0.37	75	0
1960	78.3	77	88.8	72	67.9	80	0.67	71	0
1959	81.5	35	91.3	38	71.8	41	0.08	80	0
1958	79	73	89.7	58	68.3	79	0.83	60	0
1957	80.7	49	89.9	54	71.5	45	2.13	37	0
1956	79.3	68	89.8	55	68.9	73	1.50	47	0
1955	82	32	92	27	72	37	0.16	78	0
1954	77.9	80	88.6	76	67.1	83	0.66	72	0
1953	81.2	40	92.2	26	69.7	60	1.36	50	1
1952	77.7	81	89.5	63	66	85	3.07	28	0
1951	79.6	64	89.7	58	69.6	61	2.49	33	0
1950	82.7	25	92.9	21	72.5	33	2.76	30	0
1949	81.7	34	90.7	45	72.6	30	0.77	65	0
1948	80.8	47	92	27	69.5	63	3.41	20	0
1947	80.3	55	91.4	37	69.1	69	2.60	32	0
1946	81.4	36	93.1	19	69.8	59	1.62	46	1
1945	79.6	64	90.6	48	68.6	77	1.66	45	0
1944	78.4	76	89.2	68	67.5	82	2.06	40	0
1943	80.8	47	91.6	31	70	57	3.09	27	0
1942	79.6	64	90.2	50	68.9	73	0.86	59	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2024	88.1
2018	85.5
2003	85.3
2025	85.2
2009	84.8
2008	84.8
2019	84.6
2017	84.5
2000	84.3
1998	84.3

Coldest
Year	Mean, °F
1970	75.4
1976	77
1966	77
1992	77.4
1952	77.7
1954	77.9
1972	78
1997	78.2
1960	78.3
1944	78.4

Wettest
Year	Precipitation, in
1966	7.91
2021	7.59
2016	6.95
1992	6.77
1986	6.74
2020	6.32
1970	6.23
1982	5.58
1981	5.54
2023	5.28

Driest
Year	Precipitation, in
1998	0.00
1989	trace
2011	0.04
2000	0.04
1959	0.08
1978	0.15
1955	0.16
2008	0.22
1974	0.29
1961	0.37

The hottest, coldest and wettest days

Hottest day: 101°F; 6 May 2026
Coldest night: 62°F; 3 May 2026, 2 May 2026
Wettest day: 1.22 in; 9 May 2026

Every month, season and year

Months

Seasons

Years

McAllen, TX the day's answers

All-time records

Every answer in words

May 2026 brought 3.10 in of precipitation in McAllen, TX, the wettest May since 2023, 26th wettest of 84.
The hottest day of May 2026 in McAllen, TX: 101°F on Wednesday 6 May 2026.
The coldest night of May 2026 in McAllen, TX: a low of 62°F on Sunday 3 May 2026 and Saturday 2 May 2026.
The wettest day of May 2026 in McAllen, TX: 1.22 in on Saturday 9 May 2026.