Islip, NY: April

30 April 2026: April 2026 averaged 50.8°F in Islip, NY, the warmest April since 2025, tied 15th warmest of 63 (with 1985).

April 2026

Mean temperature: 50.8°F; Warmest since 2025; 15th warmest of 63
Precipitation: 2.15 in; Driest since 2025; 12th driest of 63

A normal April in Islip, NY (1991 to 2020): a mean temperature of 49.7°F, between 47°F and 52.2°F in eight years of ten and 3.86 in of precipitation, between 1.89 in and 6.20 in in eight years of ten.

The mean temperature of every April in Islip, NY since 1964: 50.8°F in 2026; the highest is 53.4°F, in 2017 and 2010.

Normal range, 47 to 52.2°F

Every year, ranked, as a table

Every April in Islip, NY from 1964 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
2026	50.8	15	60	15	41.5	20	2.15	52
2025	52.8	4	61.3	7	44.3	3	1.98	54
2024	50.5	20	58.7	24	42.4	10	3.45	36
2023	53.3	3	62.2	4	44.4	2	4.02	27
2022	50	23	58.6	26	41.5	20	2.49	47
2021	50.9	13	60.5	13	41.3	24	3.83	31
2020	47.1	52	54.8	54	39.4	46	4.57	21
2019	51.9	8	59.7	18	44.1	4	5.95	11
2018	45.9	57	54.6	56	37.2	56	4.15	25
2017	53.4	1	62.2	4	44.6	1	3.67	33
2016	49.5	32	58.4	29	40.5	33	2.39	49
2015	49.3	34	58.6	26	40	40	1.66	59
2014	48.8	40	58.1	33	39.5	43	4.84	17
2013	49.7	29	58.6	26	40.7	32	1.53	60
2012	52.2	6	62.4	3	42	14	3.39	37
2011	50.6	18	58.4	29	42.8	8	4.40	22
2010	53.4	1	63.5	1	43.3	5	2.78	44
2009	50.7	17	59.2	19	42.1	11	4.86	16
2008	51.3	11	60.6	12	42.1	11	3.87	29
2007	47.4	49	56.2	46	38.6	50	6.72	6
2006	50.9	13	60.9	10	40.9	31	7.29	4
2005	49.8	26	59.8	17	39.8	41	4.87	15
2004	49.3	34	57.5	38	41.1	27	6.08	10
2003	46.6	55	54.8	54	38.5	51	3.66	34
2002	52.3	5	61.5	6	43.1	6	3.85	30
2001	49.6	30	58.8	21	40.4	34	1.92	56
2000	47	53	55	52	38.9	48	5.80	12
1999	50.6	18	61.1	8	40.1	38	2.34	50
1998	50.2	22	58.9	20	41.5	20	7.37	2
1997	47.8	46	57.3	40	38.4	52	5.37	13
1996	48.9	39	56.7	44	41.1	27	6.14	9
1995	49.1	36	57.8	35	40.4	34	2.40	48
1994	51.2	12	60.3	14	42	14	2.33	51
1993	49.4	33	57.5	38	41.3	24	2.95	42
1992	46	56	54.6	56	37.4	55	1.29	62
1991	52	7	60.8	11	43.1	6	3.29	40
1990	48.7	41	56.2	46	41.2	26	5.06	14
1989	47.4	49	56	48	38.8	49	4.78	19
1988	47.8	46	54.5	58	41	30	1.97	55
1987	49.9	25	58.2	32	41.5	20	3.65	35
1986	49.8	26	57.6	37	42	14	2.66	45
1985	50.8	15	58.8	21	42.8	8	1.79	57
1984	48	43	55.5	51	40.4	34	4.81	18
1983	49.1	36	57	43	41.1	27	9.09	1
1982	46.7	54	55.7	50	37.7	54	6.32	8
1981	50	23	57.9	34	42.1	11	4.02	27
1980	49.8	26	57.7	36	42	14	6.57	7
1979	48	43	55.8	49	40.1	38	4.78	19
1978	48	43	56.4	45	39.5	43	0.98	63
1977	49.6	30	60	15	39.2	47	4.17	24
1976	51.5	9	62.8	2	40.2	37	1.69	58
1975	45.2	60	55	52	35.3	63	2.95	42
1974	51.4	10	61.1	8	41.8	19	3.30	39
1973	50.3	21	58.7	24	41.9	18	6.94	5
1972	44.9	61	53.9	59	35.9	61	4.34	23
1971	47.3	51	57.3	40	37.2	56	3.33	38
1970	48.3	42	57.1	42	39.5	43	3.72	32
1969	49	38	58.3	31	39.8	41	4.09	26
1968	47.6	48	58.8	21	36.4	59	1.45	61
1967	44.9	61	53.8	62	36	60	2.60	46
1966	45.3	59	53.9	59	36.7	58	2.08	53
1965	44.4	63	53.3	63	35.5	62	3.14	41
1964	45.9	57	53.9	59	37.8	53	7.33	3

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2017	53.4
2010	53.4
2023	53.3
2025	52.8
2002	52.3
2012	52.2
1991	52
2019	51.9
1976	51.5
1974	51.4

Coldest
Year	Mean, °F
1965	44.4
1972	44.9
1967	44.9
1975	45.2
1966	45.3
2018	45.9
1964	45.9
1992	46
2003	46.6
1982	46.7

Wettest
Year	Precipitation, in
1983	9.09
1998	7.37
1964	7.33
2006	7.29
1973	6.94
2007	6.72
1980	6.57
1982	6.32
1996	6.14
2004	6.08

Driest
Year	Precipitation, in
1978	0.98
1992	1.29
1968	1.45
2013	1.53
2015	1.66
1976	1.69
1985	1.79
2001	1.92
1988	1.97
2025	1.98

The hottest, coldest and wettest days

Hottest day: 82°F; 16 April 2026
Coldest night: 27°F; 9 April 2026
Wettest day: 1.08 in; 25 April 2026

Every month, season and year

Months

Seasons

Years

Islip, NY the day's answers

All-time records

Every answer in words

April 2026 brought 2.15 in of precipitation in Islip, NY, the driest April since 2025, 12th driest of 63.
The hottest day of April 2026 in Islip, NY: 82°F on Thursday 16 April 2026.
The coldest night of April 2026 in Islip, NY: a low of 27°F on Thursday 9 April 2026.
The wettest day of April 2026 in Islip, NY: 1.08 in on Saturday 25 April 2026.