May weather in Niagara Falls, NY
The average temperature in Niagara Falls in May is 58.3°F (47.9°F–68.8°F). Average precipitation: 3.14 inches.
May is a spring month in Niagara Falls, and is warmer than the annual average of 49.3°F. Daily temperatures swing about 20.9°F between overnight low and afternoon high. Expect about 13 days with precipitation. Daylight averages about 14h 29m. For travel, May is a comfortable month to visit.
Avg High
68.8°F
Avg Low
47.9°F
Precipitation
3.14 in
Daylight
14h 29m
May records in Niagara Falls
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 84.9°F (2001) | 28.0°F (2008) | 1.10 in (2017) |
| May 2 | 82.9°F (2001) | 30.9°F (1994) | 1.37 in (2017) |
| May 3 | 84.0°F (2001) | 28.0°F (1994) | 0.33 in (2019) |
| May 4 | 82.9°F (2001) | 28.0°F (2004) | 0.75 in (2011) |
| May 5 | 84.0°F (1999) | 30.9°F (2005) | 1.05 in (2017) |
| May 6 | 86.0°F (1999) | 34.0°F (1992) | 1.04 in (2017) |
| May 7 | 79.0°F (2000) | 28.9°F (2006) | 0.49 in (2017) |
| May 8 | 80.1°F (2000) | 30.9°F (1997) | 1.52 in (2012) |
| May 9 | 87.1°F (2015) | 34.0°F (2017) | 0.48 in (1996) |
| May 10 | 88.0°F (2015) | 28.0°F (2010) | 1.41 in (2019) |
| May 11 | 82.0°F (2001) | 32.0°F (2009) | 0.72 in (2003) |
| May 12 | 84.9°F (1992) | 34.0°F (2009) | 1.88 in (2000) |
| May 13 | 84.9°F (2004) | 32.0°F (1994) | 1.44 in (2002) |
| May 14 | 84.0°F (2014) | 32.0°F (1994) | 0.73 in (2010) |
| May 15 | 84.9°F (1998) | 35.1°F (1996) | 0.55 in (1994) |
| May 16 | 87.1°F (1991) | 36.0°F (2000) | 1.00 in (1990) |
| May 17 | 84.9°F (1999) | 36.0°F (2005) | 1.82 in (1991) |
| May 18 | 86.0°F (1999) | 32.0°F (1997) | 0.98 in (1999) |
| May 19 | 86.0°F (2017) | 32.0°F (2002) | 1.12 in (2011) |
| May 20 | 86.0°F (2019) | 32.0°F (2002) | 0.68 in (2003) |
| May 21 | 87.1°F (2012) | 34.0°F (2002) | 1.57 in (1996) |
| May 22 | 86.0°F (2013) | 35.1°F (1990) | 1.05 in (2001) |
| May 23 | 88.0°F (1991) | 30.9°F (2015) | 0.75 in (2025) |
| May 24 | 87.1°F (2007) | 37.9°F (2006) | 0.72 in (2004) |
| May 25 | 84.9°F (2012) | 36.0°F (2002) | 0.47 in (2017) |
| May 26 | 86.0°F (2012) | 37.9°F (1997) | 1.24 in (2017) |
| May 27 | 87.1°F (2010) | 34.0°F (1994) | 0.54 in (2001) |
| May 28 | 87.1°F (2010) | 37.9°F (1997) | 0.72 in (2001) |
| May 29 | 91.9°F (2016) | 37.0°F (2008) | 1.59 in (2013) |
| May 30 | 91.0°F (2006) | 37.0°F (1993) | 1.01 in (1992) |
| May 31 | 93.0°F (2018) | 39.0°F (2001) | 1.22 in (1994) |