May weather in Round Lake, NY
The average temperature in Round Lake in May is 59.8°F (47.0°F–72.5°F). Average precipitation: 3.86 inches.
May is a spring month in Round Lake, and is warmer than the annual average of 48.9°F. Daily temperatures swing about 25.5°F between overnight low and afternoon high. Expect about 13 days with precipitation. Daylight averages about 14h 28m. For travel, May is a comfortable month to visit.
Avg High
72.5°F
Avg Low
47.0°F
Precipitation
3.86 in
Daylight
14h 28m
May records in Round Lake
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 87.1°F (2001) | 26.1°F (1961) | 1.33 in (2023) |
| May 2 | 89.1°F (2001) | 25.0°F (1974) | 1.66 in (1989) |
| May 3 | 90.0°F (2001) | 23.0°F (1966) | 0.86 in (1997) |
| May 4 | 89.1°F (2001) | 26.1°F (1978) | 1.60 in (1972) |
| May 5 | 88.0°F (2001) | 26.1°F (1956) | 1.47 in (2025) |
| May 6 | 87.1°F (2000) | 26.1°F (1961) | 1.38 in (1989) |
| May 7 | 90.0°F (2000) | 26.1°F (1967) | 0.72 in (1974) |
| May 8 | 90.0°F (2000) | 21.0°F (1956) | 1.96 in (2012) |
| May 9 | 91.9°F (1979) | 24.1°F (1956) | 1.42 in (1977) |
| May 10 | 91.0°F (1979) | 24.1°F (1966) | 1.43 in (1998) |
| May 11 | 90.0°F (2015) | 27.0°F (1956) | 1.72 in (2000) |
| May 12 | 89.1°F (1991) | 30.0°F (1983) | 1.41 in (1981) |
| May 13 | 88.0°F (2004) | 28.0°F (1963) | 1.34 in (2002) |
| May 14 | 88.0°F (1961) | 28.9°F (1958) | 1.01 in (1964) |
| May 15 | 86.0°F (2004) | 30.0°F (2013) | 1.46 in (2012) |
| May 16 | 90.0°F (1991) | 30.0°F (1987) | 1.04 in (2011) |
| May 17 | 90.0°F (1991) | 28.0°F (1959) | 1.30 in (1965) |
| May 18 | 93.0°F (1962) | 28.0°F (1983) | 1.45 in (1985) |
| May 19 | 93.0°F (2017) | 30.0°F (2002) | 1.48 in (1976) |
| May 20 | 90.0°F (1989) | 27.0°F (2002) | 1.37 in (1986) |
| May 21 | 91.0°F (1996) | 28.9°F (1964) | 1.23 in (1986) |
| May 22 | 90.0°F (2022) | 30.0°F (2007) | 1.92 in (2013) |
| May 23 | 91.9°F (1964) | 30.9°F (1967) | 0.73 in (1986) |
| May 24 | 91.0°F (1964) | 26.1°F (1963) | 2.70 in (2004) |
| May 25 | 90.0°F (1964) | 26.1°F (1956) | 1.43 in (2004) |
| May 26 | 95.0°F (2010) | 34.0°F (1969) | 0.83 in (2003) |
| May 27 | 96.1°F (2010) | 30.0°F (1969) | 1.46 in (1983) |
| May 28 | 91.9°F (2016) | 33.1°F (1994) | 0.98 in (2015) |
| May 29 | 91.9°F (2016) | 33.1°F (1956) | 2.53 in (1984) |
| May 30 | 91.0°F (1987) | 32.0°F (1967) | 1.19 in (1984) |
| May 31 | 91.9°F (2013) | 3.9°F (1993) | 2.27 in (2025) |