Suffolk County Weather in June
Average highs run from 75°F on June 1 to 82°F on June 30, and lows from 56°F to 65°F. Normal precipitation for the month is 3.82 in over about 9 wet days.
June day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
June at a glance
- Average high
- 79°F
- Average low
- 61°F
- Precipitation
- 3.82 in
- Record high
- 100°FJun 24, 2025
- Record low
- 33°FJun 1, 1967
- Chance of a freeze
- 0%
- Days of 90°F or more
- 1.9
- Daylight
- 14 h 56 min to 15 h 05 min
- Cloud cover
- 61%
- Humidity
- 83%
- Dew point
- 60°F
- Wind
- 8.7 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Jun 1 | 75°F | 56°F | 84°F 1962 | 33°F 1967 | 32% | 0% |
| Jun 2 | 75°F | 56°F | 86°F 2018 | 35°F 2026 | 32% | 0% |
| Jun 3 | 75°F | 56°F | 83°F 1999 | 37°F 1964 | 32% | 0% |
| Jun 4 | 75°F | 57°F | 81°F 2010 | 35°F 2019 | 32% | 0% |
| Jun 5 | 76°F | 57°F | 87°F 2005 | 39°F 1964 | 32% | 0% |
| Jun 6 | 76°F | 58°F | 89°F 1968 | 41°F 2007 | 31% | 0% |
| Jun 7 | 76°F | 58°F | 88°F 1999 | 36°F 2007 | 31% | 0% |
| Jun 8 | 77°F | 58°F | 94°F 1999 | 37°F 2002 | 31% | 0% |
| Jun 9 | 77°F | 59°F | 90°F 1959 | 39°F 2010 | 31% | 0% |
| Jun 10 | 77°F | 59°F | 93°F 1959 | 42°F 1957 | 30% | 0% |
| Jun 11 | 77°F | 59°F | 88°F 2026 | 41°F 1999 | 30% | 0% |
| Jun 12 | 78°F | 60°F | 91°F 2026 | 37°F 2018 | 30% | 0% |
| Jun 13 | 78°F | 60°F | 93°F 2017 | 43°F 2021 | 30% | 0% |
| Jun 14 | 78°F | 60°F | 93°F 2005 | 47°F 1965 | 30% | 0% |
| Jun 15 | 79°F | 61°F | 92°F 1956 | 44°F 2019 | 29% | 0% |
| Jun 16 | 79°F | 61°F | 90°F 1956 | 43°F 2009 | 29% | 0% |
| Jun 17 | 79°F | 61°F | 92°F 1957 | 40°F 2009 | 29% | 0% |
| Jun 18 | 79°F | 62°F | 88°F 1962 | 45°F 1958 | 29% | 0% |
| Jun 19 | 80°F | 62°F | 88°F 2018 | 46°F 1999 | 29% | 0% |
| Jun 20 | 80°F | 62°F | 90°F 2012 | 42°F 2005 | 28% | 0% |
| Jun 21 | 80°F | 63°F | 95°F 2012 | 41°F 2004 | 28% | 0% |
| Jun 22 | 81°F | 63°F | 94°F 2012 | 48°F 2014 | 28% | 0% |
| Jun 23 | 81°F | 63°F | 91°F 2025 | 44°F 2007 | 28% | 0% |
| Jun 24 | 81°F | 63°F | 100°F 2025 | 40°F 2007 | 27% | 0% |
| Jun 25 | 81°F | 64°F | 98°F 2025 | 50°F 2016 | 27% | 0% |
| Jun 26 | 82°F | 64°F | 96°F 1952 | 48°F 2016 | 27% | 0% |
| Jun 27 | 82°F | 64°F | 94°F 1963 | 41°F 2004 | 27% | 0% |
| Jun 28 | 82°F | 65°F | 90°F 1963 | 46°F 2004 | 27% | 0% |
| Jun 29 | 82°F | 65°F | 91°F 2010 | 49°F 2014 | 27% | 0% |
| Jun 30 | 82°F | 65°F | 94°F 1964 | 50°F 2007 | 27% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- June 1
- sunrise 5:21 AM, sunset 8:17 PM
- June 30
- sunrise 5:22 AM, sunset 8:27 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00307134 (Riverhead Rsch Farm), public domain. Records: NOAA GHCN-Daily, station USW00014719, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.