Allentown, PA: Summer

31 August 2026: Summer 2026 averaged 73.2°F in Allentown, PA, the warmest summer since 2024, 30th warmest of 102.

Summer 2026

Mean temperature: 73.2°F; Warmest since 2024; 30th warmest of 102
Precipitation: 10.86 in; Driest since 2025; 41st driest of 108

A normal summer in Allentown, PA (1991 to 2020): a mean temperature of 72.8°F, between 70.2°F and 74.5°F in eight years of ten and 12.80 in of precipitation, between 8.80 in and 20.68 in in eight years of ten.

The mean temperature of every summer in Allentown, PA since 1924: 73.2°F in 2026; the highest is 75.3°F, in 1949.

Normal range, 70.2 to 74.5°F

Every year, ranked, as a table

Every summer in Allentown, PA from 1912 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	73.2	30	84.1	31	62.3	31	10.86	68	0
2025	72.9	32	83.4	40	62.4	29	8.79	95	0
2024	73.9	17	84.8	21	63	16	11.50	64	0
2023	71.4	67	81.7	77	61.1	55	15.03	37	0
2022	73.7	22	85	15	62.3	31	9.14	90	0
2021	73.5	23	83.8	34	63.2	15	15.09	35	0
2020	74.4	7	85.2	10	63.5	9	17.50	16	0
2019	74.5	6	85	15	64	4	20.10	5	0
2018	75	2	85.3	7	64.6	1	20.61	4	0
2017	72.5	42	82.9	45	62.2	38	21.96	2	0
2016	74.9	3	86.5	3	63.3	13	10.58	76	0
2015	72.7	37	83.5	38	62	41	15.58	32	0
2014	71.7	61	82.7	51	60.8	61	11.69	62	0
2013	72.8	35	82.7	51	63	16	21.29	3	0
2012	73.5	23	84.8	21	62.2	38	12.20	60	0
2011	73.8	21	84.8	21	62.8	22	22.17	1	0
2010	74	11	85.1	12	62.9	19	12.79	53	0
2009	70.3	94	79.9	100	60.6	73	17.59	15	0
2008	71.9	50	83.6	36	60.3	76	10.37	77	0
2007	71.9	50	82.7	51	61.2	51	12.79	53	0
2006	72.7	37	82.8	50	62.6	25	19.71	6	0
2005	74.6	4	85.1	12	64.2	3	10.64	74	0
2004	70.6	89	80.4	96	60.7	66	15.77	29	0
2003	72.2	45	82.1	66	62.2	38	18.81	10	0
2002	73.5	23	85.3	7	61.7	47	8.04	98	0
2001	70.7	87	81.9	71	59.4	95	12.69	55	0
2000	69.9	99	79.4	102	60.3	76	14.14	45	0
1999	73.4	29	85.7	5	61.1	55	5.11	108	0
1998	71.3	70	81.9	71	60.7	66	9.24	88	0
1997	69.8	101	81.5	84	58.1	104	14.58	43	0
1996	70.2	96	80.7	92	59.7	92	12.48	57	0
1995	73.9	17	84.6	25	63.3	13	8.06	97	0
1994	74.1	10	84.3	30	63.9	5	17.21	17	0
1993	74	11	84.5	27	63.4	12	12.47	58	0
1992	70.1	97	79.8	101	60.3	76	12.80	52	0
1991	73.5	23	84.5	27	62.4	29	8.88	93	0
1990	72	49	81.9	71	62	41	12.53	56	0
1989	71.5	65	80.6	95	62.3	31	12.95	50	0
1988	73.9	17	85	15	62.7	24	10.68	71	0
1987	72.6	40	82.7	51	62.5	26	15.92	28	0
1986	70.9	78	81.1	86	60.7	66	10.74	70	0
1985	70.8	82	80.4	96	61.2	51	16.13	25	0
1984	73.1	31	82.6	56	63.5	9	17.63	14	0
1983	74	11	85.1	12	62.9	19	9.08	91	0
1982	69.2	102	79.1	103	59.2	97	18.45	11	0
1981	72.3	44	82.5	59	62	41	10.03	80	0
1980	74.6	4	85.5	6	63.7	7	5.33	107	0
1979	71.3	70	80.8	90	61.9	44	8.84	94	0
1978	72.2	45	82	67	62.3	31	15.74	30	0
1977	72.4	43	82.3	62	62.5	26	13.78	46	0
1976	71.7	61	81.9	71	61.5	48	10.77	69	0
1975	71.8	55	80.9	89	62.8	22	17.03	18	0
1974	70.8	82	80.3	98	61.2	51	15.13	34	0
1973	74	11	83.6	36	64.5	2	9.88	82	0
1972	70.9	78	80.7	92	61.1	55	16.69	20	0
1971	71.2	74	82	67	60.3	76	14.95	39	0
1970	71.4	67	82	67	60.8	61	10.00	81	0
1969	71.4	67	81.7	77	61	60	16.95	19	0
1968	71.9	50	83.2	41	60.5	74	7.93	99	0
1967	70.8	82	81.7	77	59.8	89	14.95	39	0
1966	74	11	87.4	1	60.7	66	5.48	106	0
1965	70.6	89	82.3	62	58.9	100	9.31	87	0
1964	70.7	87	81.8	75	59.6	93	7.37	102	0
1963	71.1	75	82.9	45	59.3	96	7.44	101	0
1962	70.8	82	81.8	75	59.8	89	11.64	63	0
1961	71.7	61	82	67	61.4	49	11.79	61	0
1960	70.9	78	81.1	86	60.7	66	16.33	22	0
1959	72.9	32	83.2	41	62.5	26	14.87	41	0
1958	70.4	93	80.8	90	60	82	8.92	92	0
1957	71.8	55	84.1	31	59.5	94	6.32	104	0
1956	70.1	97	80.3	98	59.8	89	14.57	44	0
1955	74	11	85	15	62.9	19	16.18	24	0
1954	70.9	78	82.7	51	59.1	98	11.19	67	0
1953	71.8	55	83.7	35	59.9	84	10.27	78	0
1952	72.7	37	83.5	38	61.8	45	16.11	26	0
1951	70.3	94	80.7	92	59.9	84	14.97	38	0
1950	70.8	82	82.4	60	59.1	98	9.43	86	0
1949	75.3	1	87.1	2	63.6	8	10.13	79	0
1948	71.8	55	83.1	43	60.5	74	11.30	65	0
1947	71.6	64	82.9	45	60.3	76	13.58	47	0
1946	69.9	99	81.6	80	58.2	102	18.02	12	0
1945	70.6	89	81.3	85	60	82	18.82	9	0
1944	73.5	23	86.4	4	60.7	66	6.96	103	0
1943	74.3	8	85.2	10	63.5	9	10.67	72	0
1942	71.9	50	81.6	80	62.3	31	19.20	7	0
1941	71.8	55	82.9	45	60.7	66	9.63	85	0
1940	70.5	92	81.1	86	59.9	84			0
1939	73.9	17	84.9	19	63	16	8.72	96	0
1938	72.9	32	84.6	25	61.1	55			3
1937	74.3	8	84.7	24	63.9	5	15.69	31	3
1936	73.5	23	84.9	19	62.3	31	11.20	66	5
1935	72.6	40	82.6	56	62.3	31	16.61	21	2
1934	71.8	55	82.3	62	61.2	51	13.14	48	4
1933	71.9	50	82.9	45	60.8	61	19.12	8	4
1932	71.3	70	82.4	60	59.9	84	7.56	100	1
1931	72.2	45	82.6	56	61.8	45	17.73	13	2
1930	72.1	48	84	33	60.2	81			1
1929	71.1	75	83	44	58.9	100	9.22	89	1
1928	71.5	65	81.6	80	61.4	49			3
1927					58.2	102	16.06	27	11
1926	71.3	70	81.6	80	60.8	61	16.30	23	6
1925	72.8	35	84.5	27	61.1	55	13.02	49	1
1924	71	77	82.2	65	59.9	84	12.38	59	2
1923			85.3	7	60.8	61	5.55	105	10
1922							12.89	51	40
1919							15.04	36	92
1918							9.81	83	92
1917							14.82	42	92
1916							15.40	33	92
1914							10.60	75	92
1913							9.74	84	92
1912							10.66	73	92

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1949	75.3
2018	75
2016	74.9
2005	74.6
1980	74.6
2019	74.5
2020	74.4
1943	74.3
1937	74.3
1994	74.1

Coldest
Year	Mean, °F
1982	69.2
1997	69.8
2000	69.9
1946	69.9
1992	70.1
1956	70.1
1996	70.2
2009	70.3
1951	70.3
1958	70.4

Wettest
Year	Precipitation, in
2011	22.17
2017	21.96
2013	21.29
2018	20.61
2019	20.10
2006	19.71
1942	19.20
1933	19.12
1945	18.82
2003	18.81

Driest
Year	Precipitation, in
1999	5.11
1980	5.33
1966	5.48
1923	5.55
1957	6.32
1944	6.96
1964	7.37
1963	7.44
1932	7.56
1968	7.93

The hottest, coldest and wettest days

Hottest day: 101°F; 2 July 2026
Coldest night: 44°F; 2 June 2026
Wettest day: 1.31 in; 28 July 2026

Every month, season and year

Months

Seasons

Years

Allentown, PA the day's answers

All-time records

Every answer in words

Summer 2026 brought 10.86 in of precipitation in Allentown, PA, the driest summer since 2025, 41st driest of 108.
The hottest day of summer 2026 in Allentown, PA: 101°F on Thursday 2 July 2026.
The coldest night of summer 2026 in Allentown, PA: a low of 44°F on Tuesday 2 June 2026.
The wettest day of summer 2026 in Allentown, PA: 1.31 in on Tuesday 28 July 2026.