NE Phila AP Threshold Days by Year (USW00094732)

15 fixed thresholds counted per year at NE Phila AP (USW00094732): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for NE Phila AP Thresholds

NE Phila AP: days with a maximum temperature at or above 30 C (86 F) in 68 years, most in 2016 with 88.
NE Phila AP: days with a maximum temperature at or above 90 F (32.2 C) in 68 years, most in 2010 with 53.
NE Phila AP: nights with a minimum temperature at or below 0 C (32 F) in 68 years, most in 1960 with 125.
NE Phila AP: nights with a minimum temperature at or above 20 C (68 F) in 68 years, most in 2018 with 76.
15 fixed thresholds have at least one qualifying day at NE Phila AP.

Days at or above 30 C (86 F)

68 years with a qualifying day

Days per year at NE Phila AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 88 in 2016.

Days at or above 30 C (86 F) per year at NE Phila AP
Year	Days	Decade average
1958	27	43
1959	59	43
1960	29	38.6
1961	39	38.6
1962	33	38.6
1963	30	38.6
1964	50	38.6
1965	43	38.6
1966	53	38.6
1967	25	38.6
1968	47	38.6
1969	37	38.6
1970	44	35.9
1971	40	35.9
1972	32	35.9
1973	45	35.9
1974	31	35.9
1975	32	35.9
1976	44	35.9
1977	35	35.9
1978	29	35.9
1979	27	35.9
1980	61	44.9
1981	35	44.9
1982	32	44.9
1983	66	44.9
1984	35	44.9
1985	38	44.9
1986	37	44.9
1987	50	44.9
1988	59	44.9
1989	36	44.9
1990	47	51
1991	74	51
1992	40	51
1993	63	51
1994	54	51
1995	61	51
1996	18	51
1997	43	51
1998	56	51
1999	54	51
2000	34	54
2001	57	54
2002	61	54
2003	47	54
2004	41	54
2005	64	54
2006	56	54
2007	76	54
2008	76	54
2009	28	54
2010	77	66
2011	57	66
2012	53	66
2013	48	66
2014	40	66
2015	79	66
2016	88	66
2017	60	66
2018	79	66
2019	79	66
2020	65	59.5
2021	59	59.5
2022	66	59.5
2023	60	59.5
2025	52	59.5
2026	55	59.5

For each year, a bar from the first to the last day at NE Phila AP meeting 30 C (86 F).

First to last qualifying date each year at NE Phila AP
Year	First date	Last date
1958	1958-05-31	1958-09-26
1959	1959-05-07	1959-10-06
1960	1960-04-23	1960-09-01
1961	1961-06-02	1961-09-24
1962	1962-04-26	1962-09-01
1963	1963-05-09	1963-09-12
1964	1964-05-08	1964-09-23
1965	1965-05-03	1965-09-23
1966	1966-06-04	1966-09-03
1967	1967-06-10	1967-08-19
1968	1968-06-06	1968-09-25
1969	1969-05-29	1969-09-17
1970	1970-05-09	1970-09-26
1971	1971-05-19	1971-09-09
1972	1972-05-24	1972-09-26
1973	1973-06-04	1973-09-05
1974	1974-04-29	1974-09-13
1975	1975-05-20	1975-08-26
1976	1976-04-17	1976-09-14
1977	1977-04-12	1977-09-06
1978	1978-05-20	1978-09-07
1979	1979-05-09	1979-09-04
1980	1980-05-05	1980-09-22
1981	1981-05-22	1981-09-14
1982	1982-06-16	1982-09-12
1983	1983-04-28	1983-09-20
1984	1984-05-22	1984-09-03
1985	1985-04-19	1985-09-10
1986	1986-05-06	1986-09-30
1987	1987-05-10	1987-08-19
1988	1988-05-23	1988-09-23
1989	1989-05-19	1989-09-21
1990	1990-04-26	1990-10-13
1991	1991-04-07	1991-09-18
1992	1992-05-21	1992-09-18
1993	1993-05-11	1993-09-15
1994	1994-04-15	1994-09-17
1995	1995-05-24	1995-09-14
1996	1996-05-19	1996-09-08
1997	1997-05-19	1997-10-06
1998	1998-03-30	1998-09-27
1999	1999-05-29	1999-09-06
2000	2000-05-06	2000-09-09
2001	2001-04-23	2001-09-09
2002	2002-04-16	2002-10-02
2003	2003-04-16	2003-08-30
2004	2004-04-19	2004-08-29
2005	2005-04-20	2005-09-23
2006	2006-05-28	2006-08-25
2007	2007-05-16	2007-10-09
2008	2008-04-18	2008-09-14
2009	2009-04-25	2009-08-26
2010	2010-04-06	2010-09-25
2011	2011-05-26	2011-09-14
2012	2012-04-16	2012-09-08
2013	2013-04-10	2013-10-05
2014	2014-05-12	2014-09-28
2015	2015-05-12	2015-09-29
2016	2016-05-25	2016-10-19
2017	2017-04-16	2017-10-07
2018	2018-05-02	2018-09-26
2019	2019-05-19	2019-10-02
2020	2020-05-15	2020-09-08
2021	2021-04-28	2021-09-18
2022	2022-05-20	2022-09-19
2023	2023-04-13	2023-09-12
2025	2025-05-02	2025-09-19
2026	2026-04-14	2026-10-02

Every Fixed Threshold

Fixed thresholds at NE Phila AP
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	68	88	2016	55
35 C (95 F): Days	49	16	1999	10
40 C (104 F): Days	2	1	2010	1
90 F (32.2 C): Days	68	53	2010	26
100 F (37.8 C): Days	14	2	1966	3
0 C (32 F): Ice days (max	67	40	1978	15
0 C (32 F): Frost days (min	68	125	1960	64
-10 C (14 F): Days with min	66	27	1963	13
-20 C (-4 F): Days with min	6	1	1977	1
20 C (68 F): Tropical nights (min	68	76	2018	58
25 C (77 F): Days with min	39	8	2018	2
10 mm (0.39 in): Days with 10 mm or more rain	51	56	2018	22
25 mm (0.98 in): Days with 25 mm or more rain	51	22	2018	4
50 mm (1.97 in): Days with 50 mm or more rain	45	6	1971	2
100 mm (3.94 in): Days with 100 mm or more rain	16	2	1999	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1958.

Download the Data

Data for NE Phila AP threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

NE Phila AP Threshold Days by Year (USW00094732)

Key Facts for NE Phila AP Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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