May weather in South Dayton, NY
The average temperature in South Dayton in May is 56.6°F (45.2°F–68.0°F). Average precipitation: 3.65 inches.
May is a spring month in South Dayton, and is warmer than the annual average of 46.9°F. Daily temperatures swing about 22.8°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 14h 25m. For travel, May is a comfortable month to visit.
Avg High
68.0°F
Avg Low
45.2°F
Precipitation
3.65 in
Snow
0.1 in
May records in South Dayton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 81.0°F (2017) | 30.9°F (2021) | 0.52 in (2016) |
| May 2 | 84.0°F (2019) | 35.1°F (2023) | 1.08 in (2017) |
| May 3 | 89.1°F (2012) | 32.0°F (2023) | 0.56 in (2004) |
| May 4 | 82.9°F (2012) | 33.1°F (2023) | 0.91 in (2011) |
| May 5 | 82.9°F (2015) | 30.0°F (2020) | 0.63 in (2017) |
| May 6 | 77.0°F (2013) | 33.1°F (2014) | 1.07 in (2010) |
| May 7 | 75.0°F (2013) | 30.9°F (2020) | 0.89 in (2009) |
| May 8 | 79.0°F (2013) | 30.0°F (2020) | 0.52 in (2021) |
| May 9 | 88.0°F (2015) | 25.0°F (2020) | 0.74 in (2004) |
| May 10 | 91.0°F (2015) | 25.0°F (2020) | 0.76 in (2019) |
| May 11 | 88.0°F (2015) | 35.1°F (2018) | 0.62 in (2013) |
| May 12 | 84.9°F (2011) | 28.9°F (2020) | 1.14 in (2010) |
| May 13 | 84.0°F (2011) | 28.0°F (2020) | 1.46 in (2014) |
| May 14 | 84.9°F (2014) | 32.0°F (2013) | 2.15 in (2014) |
| May 15 | 82.0°F (2014) | 32.0°F (2013) | 0.85 in (2005) |
| May 16 | 81.0°F (2013) | 33.1°F (2016) | 1.33 in (2020) |
| May 17 | 79.0°F (2025) | 33.1°F (2016) | 0.76 in (2022) |
| May 18 | 84.0°F (2017) | 28.0°F (2023) | 0.58 in (2024) |
| May 19 | 84.9°F (2017) | 30.9°F (2023) | 0.76 in (2011) |
| May 20 | 93.0°F (2012) | 33.1°F (2025) | 0.57 in (2018) |
| May 21 | 86.0°F (2021) | 33.1°F (2025) | 0.87 in (2004) |
| May 22 | 87.1°F (2013) | 37.0°F (2015) | 1.05 in (2025) |
| May 23 | 84.0°F (2012) | 30.0°F (2015) | 1.09 in (2004) |
| May 24 | 86.0°F (2012) | 30.0°F (2015) | 1.46 in (2004) |
| May 25 | 93.9°F (2012) | 33.1°F (2013) | 0.68 in (2017) |
| May 26 | 89.1°F (2012) | 33.1°F (2013) | 0.87 in (2011) |
| May 27 | 90.0°F (2020) | 37.0°F (2013) | 1.01 in (2022) |
| May 28 | 91.9°F (2012) | 39.0°F (2013) | 0.93 in (2009) |
| May 29 | 90.0°F (2011) | 37.9°F (2021) | 1.45 in (2013) |
| May 30 | 91.9°F (2011) | 39.9°F (2021) | 0.49 in (2020) |
| May 31 | 96.1°F (2011) | 39.9°F (2021) | 0.76 in (2008) |