June weather in Port Jefferson, NY
The average temperature in Port Jefferson in June is 69.6°F (61.1°F–78.2°F). Average precipitation: 3.93 inches.
June is a summer month in Port Jefferson, and is warmer than the annual average of 54.7°F. Daily temperatures swing about 17.1°F between overnight low and afternoon high. Daylight averages about 14h 54m. For travel, June is one of the best months of the year to visit.
Avg High
78.2°F
Avg Low
61.1°F
Precipitation
3.93 in
Daylight
14h 54m
June records in Port Jefferson
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| June 1 | 88.0°F (2018) | 42.1°F (2004) | 2.38 in (2003) |
| June 2 | 84.9°F (2007) | 48.9°F (2003) | 1.88 in (2012) |
| June 3 | 82.9°F (2014) | 46.9°F (2003) | 1.03 in (2006) |
| June 4 | 84.0°F (2020) | 46.0°F (2019) | 2.59 in (2003) |
| June 5 | 86.0°F (2010) | 48.9°F (2011) | 1.04 in (2014) |
| June 6 | 91.0°F (2021) | 48.9°F (2012) | 0.90 in (2024) |
| June 7 | 90.0°F (2008) | 45.0°F (2007) | 2.14 in (2002) |
| June 8 | 91.0°F (2008) | 44.1°F (2002) | 3.60 in (2013) |
| June 9 | 91.9°F (2008) | 44.1°F (2007) | 0.89 in (2022) |
| June 10 | 95.0°F (2008) | 52.0°F (2006) | 0.70 in (2013) |
| June 11 | 89.1°F (2017) | 50.0°F (2016) | 1.36 in (2013) |
| June 12 | 91.0°F (2017) | 48.0°F (2018) | 0.27 in (2011) |
| June 13 | 93.0°F (2017) | 54.0°F (2002) | 2.22 in (2012) |
| June 14 | 87.1°F (2005) | 53.1°F (2020) | 1.00 in (2013) |
| June 15 | 87.1°F (2005) | 54.0°F (2002) | 0.91 in (2015) |
| June 16 | 82.9°F (2004) | 53.1°F (2007) | 0.37 in (2017) |
| June 17 | 86.0°F (2018) | 48.9°F (2003) | 0.50 in (2008) |
| June 18 | 86.0°F (2006) | 52.0°F (2012) | 1.21 in (2003) |
| June 19 | 87.1°F (2021) | 54.0°F (2008) | 0.25 in (2022) |
| June 20 | 91.0°F (2012) | 48.9°F (2005) | 0.60 in (2017) |
| June 21 | 89.1°F (2012) | 51.1°F (2004) | 0.68 in (2008) |
| June 22 | 91.9°F (2024) | 54.0°F (2014) | 1.15 in (2003) |
| June 23 | 89.1°F (2024) | 54.0°F (2005) | 1.65 in (2011) |
| June 24 | 91.9°F (2020) | 52.0°F (2021) | 1.78 in (2017) |
| June 25 | 89.1°F (2013) | 55.0°F (2007) | 1.78 in (2012) |
| June 26 | 91.0°F (2002) | 55.9°F (2016) | 0.64 in (2014) |
| June 27 | 90.0°F (2003) | 55.9°F (2004) | 1.54 in (2022) |
| June 28 | 89.1°F (2020) | 54.0°F (2004) | 1.26 in (2015) |
| June 29 | 91.9°F (2021) | 57.0°F (2014) | 0.35 in (2023) |
| June 30 | 93.0°F (2021) | 59.0°F (2004) | 0.15 in (2005) |