Islip, NY

New York · Records since 1963–2026

☁️ 70°F Feels like 75°
Currently in Islip
As of 1:45 AM EDT

Records for June 27

🔥 Record High

93°F

June 27, 2003

+13° from 80° normal

❄ Record Low

48°F

June 27, 1965

-17° from 65° normal
🌞 Normal high: 80°F 🌑 Normal low: 65°F 1991–2020 normals

All-Time Records — Islip

🔥
104°F
Hottest Day Ever
Jul 3, 1966
-14°F
Coldest Day Ever
Feb 13, 1967
🌧
13.51"
Wettest Day Ever
Aug 13, 2014
23.5"
Most Snow in One Day
Jan 29, 2022

2026 Daily High Temperature vs Normal

Year to date
Above normal Below normal

77 of 176 days with data were above the 1991–2020 normal high for their date.


Days ≥ 90°F Per Year

1970–2026
3
2026 so far
8
Avg/year 1970–2025
9
Avg/year (last 10 complete)
18
Most in a year (1999)

Top 10 Record Highs — June 27

# Temp Date
🏆 93°F June 27, 2003
2 91°F June 27, 1983
3 90°F June 27, 2001
4 90°F June 27, 1999
5 90°F June 27, 1964
6 89°F June 27, 2002
7 89°F June 27, 1980
8 88°F June 27, 2019
9 87°F June 27, 2007
10 87°F June 27, 1989

Top 5 Record Lows — June 27

# Temp Date
🥶 48°F June 27, 1965
2 52°F June 27, 2004
3 53°F June 27, 1995
4 55°F June 27, 1985
5 55°F June 27, 1974
About this data — Records are sourced from the NOAA Threadex dataset via RCC ACIS, a quality-controlled record for long-term climate stations. Threadex adjusts for station relocations and observation-time changes, making records comparable across all years since 1963–2026. Climate normals represent the 1991–2020 average.

Precipitation

Actual vs. 1991–2020 full-month and full-season normals

15.92"
2026 YTD
Normal: 22.28"
-6.36"
0.66"
June so far
June normal: 4.00"
-3.34"
0.66"
Summer so far
Summer normal: 11.50"
-10.84"
5
2026 heavy rain days
Days with ≥ 1.0"

Monthly Precipitation — Last 24 Months

Blue = actual · dashed line = monthly normal

Annual Precipitation Per Year (1970–2026)

Blue = above average · tan = below average · gold = 2026 (partial)

Heavy Rain Days Per Year (≥ 1.0")

Even when annual totals stay similar, storms can become more intense and concentrated

Warm Summer Nights (Jun–Aug)

Nights where the overnight low exceeded the 1991–2020 normal low

10
2026 so far
above-normal nights
40.1
Avg / summer
1970–2020
61
Most in a summer
2020

Above-Normal Summer Nights Per Year

Average June–August Low Temperature by Decade

Decade averages of the actual overnight low