Islip, NY: records

4 October 2026: The hottest day on record in Islip, NY: 104°F on Sunday 3 July 1966.

All-time records

New daily records set in Islip, NY by decade since the 1990s: the most record highs, 92, came in the 2010s; the most record lows, 46, in the 2000s.

Every decade as a table

Decade	Record highs	Record lows	Years in the record
1960s	0	0	7
1970s	0	0	10
1980s	0	0	10
1990s	85	43	10
2000s	79	46	10
2010s	92	17	10
2020s	61	3	7

Month	Highest	Lowest	Wettest day
January	69°F 29 January 2002	-8°F 18 January 1965	3.61 in 3 January 1999
February	71°F 16 February 2023	-14°F 13 February 1967	2.42 in 25 February 2010
March	82°F 29 March 2025, 13 March 1990	0°F 19 March 1967, 18 March 1967	3.25 in 9 March 1998
April	94°F 17 April 2002	16°F 1 April 1969	4.63 in 23 April 2006
May	98°F 20 May 1996	32°F 1 May 2008	4.01 in 16 May 1989
June	101°F 24 June 2025	42°F 1 June 2009, 3 June 1976, 12 June 1972 and 1 more	4.87 in 6 June 2000
July	104°F 3 July 1966	49°F 2 July 1965	4.65 in 16 July 2023
August	100°F 9 August 2001, 2 August 1975	45°F 30 August 1986, 31 August 1965	13.51 in 13 August 2014
September	94°F 3 September 1973	38°F 22 September 1997, 28 September 1989, 20 September 1979 and 3 more	3.12 in 15 September 1966
October	89°F 2 October 2019	23°F 31 October 1966	5.38 in 14 October 2005
November	80°F 1 November 2024, 7 November 2022	11°F 24 November 1989	2.63 in 20 November 1988
December	77°F 7 December 1998	-1°F 31 December 1963	3.04 in 28 December 2023

Every record in words

The coldest night on record in Islip, NY: a low of -14°F on Monday 13 February 1967.
The wettest day on record in Islip, NY: 13.51 in on Wednesday 13 August 2014.
The warmest night on record in Islip, NY: a low of 81°F on Tuesday 6 July 1999.
The coldest day on record in Islip, NY: a high of 6°F on Monday 21 January 1985.
The longest run of days with a high of 90°F or above in Islip, NY: 7 days, from Sunday 14 July to Saturday 20 July 2013.
The longest run of days with a high of 32°F or below in Islip, NY: 16 days, from Monday 5 February to Tuesday 20 February 1979.
The wettest month on record in Islip, NY: August 2014, with 14.07 in of precipitation (shared with 1 other month).
The driest month on record in Islip, NY: October 2024, with 0.12 in of precipitation.
The wettest year on record in Islip, NY: 1989, with 65.32 in of precipitation.
The driest year on record in Islip, NY: 1985, with 34.41 in of precipitation.

Islip, NY the day's answers