Philadelphia Center City, PA: May

31 May 2026: May 2026 averaged 66°F in Philadelphia Center City, PA, the warmest May since 2025, tied 32nd warmest of 84 (with 2014).

May 2026

Mean temperature: 66°F; Warmest since 2025; 32nd warmest of 84

A normal May in Philadelphia Center City, PA (1991 to 2020): a mean temperature of 66°F, between 62.7°F and 69.3°F in eight years of ten.

The mean temperature of every May in Philadelphia Center City, PA since 1941: 66°F in 2026; the highest is 71.5°F, in 2004.

Normal range, 62.7 to 69.3°F

Every year, ranked, as a table

Every May in Philadelphia Center City, PA 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	66	32	75.5	32	56.5	38			0
2025	66.6	23	74.8	37	58.2	15			2
2024	67.7	11	76.3	23	59.2	8			0
2023	64.1	48	73.7	45	54.5	60			0
2022	67	20	76.3	23	57.8	17			0
2021	65.7	35	75.8	31	55.5	45			0
2019	67.7	11	77.2	12	58.3	13			2
2018			80.3	4	59.2	8	5.45	11	4
2017	63.1	59	71.3	66	54.9	55	7.56	3	0
2016	62.9	62	71	69	54.9	55	7.23	4	0
2015	70.7	3	80.5	3	60.8	3	0.44	45	0
2014	66	32	74.6	39	57.3	23	5.87	8	0
2013	65.4	38	73.9	42	57	28	2.78	33	0
2012	68.5	7	76.4	18	60.7	4	3.84	27	0
2011	68.4	8	76.9	15	59.9	5	2.57	36	0
2010	68.2	10	76.5	17	59.8	7	2.61	35	0
2009	65.2	42	73.5	47	56.9	31	4.86	15	0
2008	63.4	55	71.9	62	55	54	4.76	17	0
2007	66.5	24	76.4	18	56.7	36	4.08	24	0
2006	67.7	11	78.5	7	56.9	31	2.19	37	0
2005	63.3	57	73.8	43	52.7	77			0
2004	71.5	1	80.9	2	62.2	1			0
2003	61.7	76	68.5	84	55.1	53	5.76	10	1
2002	65.3	40	75.5	32	55.2	50	4.21	23	0
2001	66.2	31	75.1	36	57.4	22	3.41	29	0
2000	66.7	22	75.9	29	57.5	19	3.98	26	0
1999	66.4	28	76	26	56.9	31	4.67	18	0
1998	68.7	6	77.5	11	59.9	5	5.12	13	0
1997	62.8	64	72.2	58	53.4	71	4.01	25	0
1996	62.5	68	71.6	63	53.4	71	5.32	12	0
1995	63.2	58	72.5	56	54.3	62	3.68	28	2
1994	63.1	59	73.3	50	52.9	75	4.47	21	2
1993	65.9	34	74.8	37	57	28			0
1992	61.5	77	70.2	76	52.7	77			0
1991	71	2	81	1	61	2			0
1990	62.7	65	70.7	71	54.7	59			0
1989	63.4	55	71.6	63	55.2	50			0
1988	64.6	44	73.5	47	55.8	41			0
1987	65	43	74.2	40	55.8	41			0
1986	68.8	5	78.6	6	58.9	10			0
1985	66.4	28	76	26	56.8	35			0
1984	65.4	38	73.3	50	57.5	19			0
1983	63	61	72.3	57	53.7	69			0
1982	65.7	35	75.5	32	55.8	41			0
1981	65.7	35	75.2	35	56.1	40			0
1980	67.3	17	76.3	23	58.4	12			0
1979	64.6	44	72.9	53	56.2	39			0
1978	60.9	81	69.2	82	52.6	81	4.85	16	0
1977	67	20	76.9	15	57.1	26	1.02	43	0
1976	62.9	62	71.4	65	54.4	61	4.47	21	0
1975	67.4	16	76.4	18	58.3	13	4.88	14	0
1974	62.7	65	71.2	67	54.2	64	3.25	31	0
1973	62.7	65	70.1	78	55.4	46			0
1972	63.8	51	72.2	58	55.4	46			0
1971	62	73	70.5	73	53.5	70			0
1970	67.1	18	76.4	18	57.8	17			0
1969	66.5	24	75.9	29	57.1	26			0
1968	62.1	71	70.4	74	53.9	67			0
1967	59	84	67.6	85	50.5	85			0
1966	62.5	68	72.1	60	52.9	75			0
1965	69	4	79.5	5	58.5	11			0
1964	67.5	14	78.2	9	56.9	31	0.43	46	0
1963	63.6	54	74	41	53.2	74	1.16	42	0
1962	66.5	24	76.4	18	56.6	37			0
1961	61	80	69.8	79	52.1	83			0
1960	63.7	53	72.6	54	54.8	57			0
1959	67.5	14	77.6	10	57.5	19			0
1958	62	73	70.6	72	53.3	73			0
1957	63.8	51	73.2	52	54.3	62	1.27	41	0
1956	60.8	82	70.3	75	51.4	84	2.97	32	0
1955	66.5	24	76	26	57	28	1.57	40	0
1954	61.5	77	69.3	81	53.8	68	2.64	34	0
1953	65.3	40	73.4	49	57.2	24	8.30	2	0
1952	62.4	70	70.8	70	54.1	65	6.20	7	0
1951	64.2	47	73.7	45	54.8	57	4.67	18	0
1950	60.7	83	69.1	83	52.3	82	4.57	20	0
1949	64.5	46	73.8	43	55.2	50	6.23	6	0
1948	62.1	71	70.2	76	54.1	65	6.88	5	0
1947	62	73	71.2	67	52.7	77	8.68	1	0
1946	64	49	72.6	54	55.4	46	5.85	9	0
1945	61.2	79	69.6	80	52.7	77	3.33	30	0
1944	68.3	9	78.4	8	58.1	16	1.97	38	0
1943	63.9	50	72.1	60	55.7	44			0
1942	67.1	18	77.1	14	57.2	24	1.82	39	0
1941	66.3	30	77.2	12	55.4	46	0.87	44	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2004	71.5
1991	71
2015	70.7
1965	69
1986	68.8
1998	68.7
2012	68.5
2011	68.4
1944	68.3
2010	68.2

Coldest
Year	Mean, °F
1967	59
1950	60.7
1956	60.8
1978	60.9
1961	61
1945	61.2
1992	61.5
1954	61.5
2003	61.7
1971	62
More years share the last value

Wettest
Year	Precipitation, in
1947	8.68
1953	8.30
2017	7.56
2016	7.23
1948	6.88
1949	6.23
1952	6.20
2014	5.87
1946	5.85
2003	5.76

Driest
Year	Precipitation, in
1964	0.43
2015	0.44
1941	0.87
1977	1.02
1963	1.16
1957	1.27
1955	1.57
1942	1.82
1944	1.97
2006	2.19

The hottest, coldest and wettest days

Hottest day: 98°F; 20 May 2026
Coldest night: 46°F; 4 May 2026, 1 May 2026
Wettest day: 1.57 in; 24 May 2026

Every month, season and year

Months

Seasons

Years

Philadelphia Center City, PA the day's answers

All-time records

Every answer in words

The hottest day of May 2026 in Philadelphia Center City, PA: 98°F on Wednesday 20 May 2026.
The coldest night of May 2026 in Philadelphia Center City, PA: a low of 46°F on Monday 4 May 2026 and Friday 1 May 2026.
The wettest day of May 2026 in Philadelphia Center City, PA: 1.57 in on Sunday 24 May 2026.