Islip, NY: January
: January 2026 averaged 29.6°F in Islip, NY, the coldest January since 2022, 25th coldest of 63.
January 2026
- Mean temperature
- 29.6°F
- Coldest since 2022
- 25th coldest of 63
- Precipitation
- 2.58 in
- Driest since 2025
- 22nd driest of 63
A normal January in Islip, NY (1991 to 2020): a mean temperature of 31.6°F, between 26.5°F and 37.5°F in eight years of ten and 3.54 in of precipitation, between 2.16 in and 5.27 in in eight years of ten.
- Normal range, 26.5 to 37.5°F
Every year, ranked, as a table
Every January 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 | Days missing |
|---|---|---|---|---|---|---|---|---|---|
| 2026 | 29.6 | 39 | 36.1 | 43 | 23.1 | 35 | 2.58 | 42 | 0 |
| 2025 | 30.4 | 33 | 37.4 | 37 | 23.4 | 31 | 0.60 | 62 | 0 |
| 2024 | 35.1 | 11 | 41 | 20 | 29.1 | 9 | 7.32 | 5 | 0 |
| 2023 | 41.1 | 1 | 48.3 | 1 | 34 | 1 | 4.97 | 14 | 0 |
| 2022 | 28.8 | 43 | 37.5 | 35 | 20.2 | 46 | 5.37 | 11 | 0 |
| 2021 | 32.9 | 21 | 39.7 | 27 | 26.1 | 15 | 1.86 | 55 | 0 |
| 2020 | 37.3 | 7 | 44.8 | 6 | 29.7 | 7 | 2.19 | 50 | 0 |
| 2019 | 31.1 | 31 | 39.4 | 29 | 22.8 | 37 | 3.85 | 22 | 0 |
| 2018 | 30.1 | 37 | 37.9 | 34 | 22.4 | 38 | 3.74 | 23 | 0 |
| 2017 | 36.2 | 8 | 42.2 | 14 | 30.2 | 5 | 4.06 | 20 | 0 |
| 2016 | 33.3 | 19 | 41.3 | 19 | 25.3 | 19 | 4.47 | 16 | 0 |
| 2015 | 28.7 | 44 | 35.9 | 45 | 21.4 | 43 | 5.25 | 12 | 0 |
| 2014 | 27.7 | 46 | 36 | 44 | 19.4 | 50 | 3.98 | 21 | 0 |
| 2013 | 33.1 | 20 | 40.8 | 21 | 25.4 | 18 | 2.22 | 46 | 0 |
| 2012 | 36.2 | 8 | 44.5 | 7 | 27.9 | 11 | 2.66 | 40 | 0 |
| 2011 | 27.1 | 48 | 34.2 | 51 | 19.9 | 48 | 4.19 | 17 | 0 |
| 2010 | 30.4 | 33 | 37.4 | 37 | 23.4 | 31 | 2.21 | 48 | 0 |
| 2009 | 26.5 | 51 | 33.4 | 55 | 19.6 | 49 | 3.20 | 35 | 0 |
| 2008 | 33.8 | 15 | 41.5 | 18 | 26.1 | 15 | 2.17 | 51 | 0 |
| 2007 | 35.9 | 10 | 42.8 | 11 | 28.9 | 10 | 4.11 | 19 | 0 |
| 2006 | 37.5 | 6 | 45.4 | 3 | 29.5 | 8 | 3.60 | 25 | 0 |
| 2005 | 28.5 | 45 | 35.5 | 46 | 21.5 | 42 | 3.51 | 28 | 0 |
| 2004 | 23.5 | 61 | 30.2 | 62 | 16.8 | 58 | 1.45 | 57 | 0 |
| 2003 | 26.5 | 51 | 32.8 | 58 | 20.2 | 46 | 1.95 | 54 | 0 |
| 2002 | 37.7 | 5 | 45.4 | 3 | 30 | 6 | 2.34 | 45 | 0 |
| 2001 | 29.5 | 40 | 37.3 | 39 | 21.7 | 41 | 3.50 | 29 | 0 |
| 2000 | 29.5 | 40 | 38.4 | 32 | 20.6 | 45 | 3.25 | 34 | 0 |
| 1999 | 33.7 | 17 | 42.8 | 11 | 24.6 | 25 | 9.25 | 2 | 0 |
| 1998 | 39.1 | 2 | 46.4 | 2 | 31.7 | 2 | 7.76 | 4 | 0 |
| 1997 | 30.2 | 36 | 38.1 | 33 | 22.3 | 39 | 3.57 | 27 | 0 |
| 1996 | 30.4 | 33 | 37.5 | 35 | 23.3 | 33 | 5.44 | 10 | 0 |
| 1995 | 38 | 3 | 45.1 | 5 | 31 | 4 | 2.81 | 37 | 0 |
| 1994 | 25.6 | 56 | 33.3 | 56 | 18 | 55 | 4.69 | 15 | 0 |
| 1993 | 34.6 | 13 | 41.7 | 16 | 27.5 | 12 | 2.57 | 43 | 0 |
| 1992 | 32.5 | 25 | 40.7 | 23 | 24.2 | 27 | 2.07 | 53 | 0 |
| 1991 | 32.1 | 28 | 40.8 | 21 | 23.5 | 30 | 4.17 | 18 | 0 |
| 1990 | 37.9 | 4 | 44.5 | 7 | 31.3 | 3 | 5.68 | 8 | 0 |
| 1989 | 34.6 | 13 | 42.5 | 13 | 26.7 | 14 | 2.21 | 48 | 0 |
| 1988 | 26.6 | 50 | 34.7 | 49 | 18.5 | 53 | 3.17 | 36 | 0 |
| 1987 | 30.5 | 32 | 37.2 | 40 | 23.7 | 28 | 6.28 | 6 | 0 |
| 1986 | 31.7 | 29 | 40.2 | 25 | 23.1 | 35 | 3.37 | 32 | 0 |
| 1985 | 26.2 | 54 | 33.3 | 56 | 19.2 | 52 | 1.34 | 60 | 0 |
| 1984 | 27.3 | 47 | 34 | 52 | 20.7 | 44 | 2.63 | 41 | 0 |
| 1983 | 32.7 | 23 | 39.4 | 29 | 26 | 17 | 3.58 | 26 | 0 |
| 1982 | 25.8 | 55 | 34 | 52 | 17.6 | 57 | 5.48 | 9 | 0 |
| 1981 | 25.2 | 59 | 33.5 | 54 | 16.8 | 58 | 1.42 | 58 | 0 |
| 1980 | 32.3 | 26 | 39.6 | 28 | 25 | 21 | 1.65 | 56 | 0 |
| 1979 | 31.7 | 29 | 38.6 | 31 | 24.8 | 23 | 10.30 | 1 | 0 |
| 1978 | 25.5 | 57 | 32.7 | 59 | 18.3 | 54 | 8.77 | 3 | 0 |
| 1977 | 20.8 | 63 | 28.4 | 63 | 13.2 | 63 | 2.14 | 52 | 0 |
| 1976 | 26.5 | 51 | 35 | 47 | 17.9 | 56 | 5.02 | 13 | 0 |
| 1975 | 35 | 12 | 42.9 | 9 | 27.2 | 13 | 5.69 | 7 | 0 |
| 1974 | 32.8 | 22 | 40.7 | 23 | 24.9 | 22 | 3.44 | 31 | 0 |
| 1973 | 32.7 | 23 | 41.7 | 16 | 23.7 | 28 | 3.63 | 24 | 0 |
| 1972 | 33.7 | 17 | 42.2 | 14 | 25.3 | 19 | 2.22 | 46 | 0 |
| 1971 | 27.1 | 48 | 34.8 | 48 | 19.4 | 50 | 2.68 | 39 | 0 |
| 1970 | 23.3 | 62 | 30.5 | 61 | 16.2 | 62 | 0.51 | 63 | 0 |
| 1969 | 30.1 | 37 | 37.1 | 41 | 23.2 | 34 | 0.92 | 61 | 0 |
| 1968 | 23.8 | 60 | 31.1 | 60 | 16.4 | 61 | 2.57 | 43 | 0 |
| 1967 | 33.8 | 15 | 42.9 | 9 | 24.8 | 23 | 1.35 | 59 | 0 |
| 1966 | 29.5 | 40 | 37 | 42 | 21.9 | 40 | 3.34 | 33 | 0 |
| 1965 | 25.5 | 57 | 34.3 | 50 | 16.8 | 58 | 3.50 | 29 | 0 |
| 1964 | 32.3 | 26 | 40.2 | 25 | 24.3 | 26 | 2.81 | 37 | 0 |
Warmest, coldest, wettest and driest
| Year | Mean, °F |
|---|---|
| 2023 | 41.1 |
| 1998 | 39.1 |
| 1995 | 38 |
| 1990 | 37.9 |
| 2002 | 37.7 |
| 2006 | 37.5 |
| 2020 | 37.3 |
| 2017 | 36.2 |
| 2012 | 36.2 |
| 2007 | 35.9 |
| Year | Mean, °F |
|---|---|
| 1977 | 20.8 |
| 1970 | 23.3 |
| 2004 | 23.5 |
| 1968 | 23.8 |
| 1981 | 25.2 |
| 1978 | 25.5 |
| 1965 | 25.5 |
| 1994 | 25.6 |
| 1982 | 25.8 |
| 1985 | 26.2 |
| Year | Precipitation, in |
|---|---|
| 1979 | 10.30 |
| 1999 | 9.25 |
| 1978 | 8.77 |
| 1998 | 7.76 |
| 2024 | 7.32 |
| 1987 | 6.28 |
| 1975 | 5.69 |
| 1990 | 5.68 |
| 1982 | 5.48 |
| 1996 | 5.44 |
| Year | Precipitation, in |
|---|---|
| 1970 | 0.51 |
| 2025 | 0.60 |
| 1969 | 0.92 |
| 1985 | 1.34 |
| 1967 | 1.35 |
| 1981 | 1.42 |
| 2004 | 1.45 |
| 1980 | 1.65 |
| 2021 | 1.86 |
| 2003 | 1.95 |
The hottest, coldest and wettest days
- Hottest day
- 51°F
- , ,
- Coldest night
- 0°F
- Wettest day
- 1.13 in
Every month, season and year
Months
Seasons
Years
Islip, NY the day's answers
Every answer in words
- January 2026 brought 2.58 in of precipitation in Islip, NY, the driest January since 2025, 22nd driest of 63.
- The hottest day of January 2026 in Islip, NY: 51°F on Wednesday 14 January 2026, Saturday 10 January 2026 and Friday 9 January 2026.
- The coldest night of January 2026 in Islip, NY: a low of 0°F on Saturday 31 January 2026.
- The wettest day of January 2026 in Islip, NY: 1.13 in on Sunday 25 January 2026.