May weather in Marathon, NY
The average temperature in Marathon in May is 55.9°F (43.7°F–68.1°F). Average precipitation: 3.51 inches.
May is a spring month in Marathon, and is warmer than the annual average of 46.8°F. Daily temperatures swing about 24.4°F between overnight low and afternoon high. Daylight averages about 14h 25m. For travel, May is a comfortable month to visit.
Avg High
68.1°F
Avg Low
43.7°F
Precipitation
3.51 in
Daylight
14h 25m
May records in Marathon
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 80.1°F (2024) | 25.0°F (2012) | 2.74 in (2023) |
| May 2 | 77.0°F (2018) | 28.9°F (2022) | 0.38 in (1949) |
| May 3 | 86.0°F (2018) | 37.9°F (2015) | 0.43 in (2016) |
| May 4 | 82.0°F (2012) | 32.0°F (2017) | 1.43 in (2019) |
| May 5 | 81.0°F (2015) | 32.0°F (2017) | 0.45 in (1948) |
| May 6 | 77.0°F (2013) | 30.9°F (2020) | 0.92 in (2017) |
| May 7 | 75.0°F (2013) | 30.0°F (2020) | 1.71 in (2025) |
| May 8 | 79.0°F (2015) | 30.9°F (2020) | 0.64 in (2021) |
| May 9 | 87.1°F (2015) | 28.0°F (2020) | 0.54 in (2013) |
| May 10 | 82.9°F (2015) | 28.0°F (2020) | 0.59 in (2021) |
| May 11 | 86.0°F (2015) | 30.9°F (2016) | 0.51 in (2018) |
| May 12 | 84.9°F (2015) | 30.9°F (2016) | 0.22 in (2013) |
| May 13 | 84.0°F (2022) | 28.0°F (2020) | 0.81 in (1948) |
| May 14 | 82.9°F (2014) | 28.0°F (2020) | 0.87 in (2019) |
| May 15 | 80.1°F (2014) | 30.0°F (2013) | 1.15 in (2012) |
| May 16 | 80.1°F (2020) | 34.0°F (2016) | 0.76 in (2020) |
| May 17 | 81.0°F (2025) | 35.1°F (2016) | 1.47 in (2014) |
| May 18 | 88.0°F (2017) | 28.0°F (2023) | 0.44 in (2011) |
| May 19 | 89.1°F (2017) | 28.0°F (2023) | 0.29 in (2011) |
| May 20 | 84.9°F (2019) | 36.0°F (2014) | 0.91 in (2018) |
| May 21 | 88.0°F (2021) | 28.9°F (2015) | 0.07 in (2023) |
| May 22 | 89.1°F (2022) | 37.0°F (2020) | 0.88 in (2013) |
| May 23 | 87.1°F (2024) | 35.1°F (2015) | 0.98 in (2020) |
| May 24 | 79.0°F (2024) | 37.0°F (2015) | 0.87 in (1949) |
| May 25 | 79.0°F (2024) | 37.0°F (2015) | 0.15 in (2013) |
| May 26 | 84.9°F (2015) | 36.0°F (2023) | 0.57 in (2017) |
| May 27 | 90.0°F (2020) | 35.1°F (2013) | 0.78 in (2011) |
| May 28 | 87.1°F (2016) | 36.0°F (2013) | 1.42 in (2011) |
| May 29 | 90.0°F (2016) | 42.1°F (2021) | 0.87 in (2021) |
| May 30 | 88.0°F (2012) | 42.1°F (2021) | 1.08 in (2012) |
| May 31 | 88.0°F (2012) | 43.0°F (2024) | 0.79 in (2015) |