May weather in Greenport, NY
The average temperature in Greenport in May is 56.8°F (48.6°F–64.9°F). Average precipitation: inches.
May is a spring month in Greenport, and is warmer than the annual average of 53°F. Daily temperatures swing about 16.3°F between overnight low and afternoon high. Daylight averages about 14h 18m. For travel, May is a comfortable month to visit.
Avg High
64.9°F
Avg Low
48.6°F
Precipitation
in
Daylight
14h 18m
May records in Greenport
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 68.0°F (2025) | 41.0°F (2021) | 0.31 in (2023) |
| May 2 | 69.1°F (2018) | 41.0°F (2021) | 0.35 in (2020) |
| May 3 | 82.0°F (2018) | 46.9°F (2019) | 0.42 in (2022) |
| May 4 | 81.0°F (2018) | 44.1°F (2024) | 1.30 in (2021) |
| May 5 | 75.9°F (2018) | 46.0°F (2024) | 1.00 in (2025) |
| May 6 | 70.0°F (2018) | 45.0°F (2020) | 1.48 in (2025) |
| May 7 | 71.1°F (2024) | 41.0°F (2020) | 0.55 in (2025) |
| May 8 | 73.0°F (2023) | 41.0°F (2020) | 0.60 in (2022) |
| May 9 | 73.0°F (2023) | 37.0°F (2020) | 0.38 in (2020) |
| May 10 | 66.0°F (2024) | 37.0°F (2020) | 1.15 in (2025) |
| May 11 | 69.1°F (2025) | 41.0°F (2020) | 0.00 in (2018) |
| May 12 | 75.9°F (2023) | 44.1°F (2020) | 0.23 in (2019) |
| May 13 | 84.0°F (2023) | 39.9°F (2020) | 0.90 in (2019) |
| May 14 | 80.1°F (2023) | 39.9°F (2020) | 0.51 in (2019) |
| May 15 | 75.0°F (2021) | 42.1°F (2019) | 0.29 in (2025) |
| May 16 | 78.1°F (2021) | 45.0°F (2019) | 4.70 in (2024) |
| May 17 | 75.9°F (2023) | 50.0°F (2020) | 0.37 in (2018) |
| May 18 | 75.0°F (2021) | 39.0°F (2023) | 0.11 in (2018) |
| May 19 | 79.0°F (2021) | 43.0°F (2023) | 0.34 in (2022) |
| May 20 | 81.0°F (2021) | 48.9°F (2018) | 0.67 in (2018) |
| May 21 | 77.0°F (2019) | 43.0°F (2020) | 1.44 in (2023) |
| May 22 | 82.0°F (2022) | 43.0°F (2020) | 0.68 in (2025) |
| May 23 | 86.0°F (2022) | 45.0°F (2025) | 1.45 in (2025) |
| May 24 | 82.0°F (2021) | 45.0°F (2025) | 1.39 in (2024) |
| May 25 | 79.0°F (2024) | 46.9°F (2020) | 0.07 in (2020) |
| May 26 | 80.1°F (2018) | 48.9°F (2022) | 0.03 in (2019) |
| May 27 | 84.0°F (2018) | 52.0°F (2023) | 0.10 in (2021) |
| May 28 | 80.1°F (2021) | 51.1°F (2018) | 0.32 in (2022) |
| May 29 | 78.1°F (2024) | 46.0°F (2021) | 2.25 in (2021) |
| May 30 | 78.1°F (2018) | 46.9°F (2021) | 0.70 in (2019) |
| May 31 | 82.0°F (2022) | 48.0°F (2021) | 1.69 in (2021) |