May weather in McDonough, GA
The average temperature in McDonough in May is 69.8°F (56.4°F–83.1°F). Average precipitation: 3.31 inches.
May is a spring month in McDonough, and is warmer than the annual average of 62°F. Daily temperatures swing about 26.7°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 13h 44m. For travel, May is a comfortable month to visit.
Avg High
83.1°F
Avg Low
56.4°F
Precipitation
3.31 in
Daylight
13h 44m
May records in McDonough
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 90.0°F (2007) | 37.9°F (2008) | 1.30 in (2005) |
| May 2 | 91.9°F (2007) | 44.1°F (2005) | 0.51 in (2004) |
| May 3 | 90.0°F (2002) | 43.0°F (2004) | 0.36 in (2003) |
| May 4 | 89.1°F (2007) | 39.0°F (2004) | 2.52 in (2010) |
| May 5 | 88.0°F (2000) | 37.9°F (2011) | 2.96 in (2013) |
| May 6 | 90.0°F (2000) | 37.0°F (2011) | 1.31 in (2003) |
| May 7 | 90.0°F (2000) | 44.1°F (2011) | 1.35 in (2003) |
| May 8 | 91.0°F (2000) | 42.1°F (2007) | 0.51 in (2003) |
| May 9 | 91.9°F (2004) | 42.1°F (2007) | 0.39 in (2025) |
| May 10 | 93.0°F (2000) | 45.0°F (2010) | 0.71 in (2024) |
| May 11 | 93.0°F (2000) | 45.0°F (2010) | 0.75 in (2006) |
| May 12 | 93.9°F (2000) | 48.0°F (2006) | 0.98 in (2025) |
| May 13 | 93.9°F (2011) | 44.1°F (2008) | 0.82 in (2004) |
| May 14 | 93.0°F (2007) | 43.0°F (2013) | 0.54 in (2008) |
| May 15 | 91.0°F (2001) | 44.1°F (2013) | 2.90 in (2014) |
| May 16 | 93.0°F (2001) | 46.0°F (2016) | 0.37 in (2018) |
| May 17 | 91.9°F (2001) | 37.9°F (2007) | 0.84 in (2023) |
| May 18 | 99.0°F (2001) | 39.9°F (2009) | 1.25 in (2003) |
| May 19 | 93.9°F (2000) | 39.9°F (2009) | 0.75 in (2003) |
| May 20 | 89.1°F (2011) | 44.1°F (2002) | 0.90 in (2001) |
| May 21 | 95.0°F (2006) | 43.0°F (2002) | 0.81 in (2005) |
| May 22 | 93.0°F (2000) | 43.0°F (2002) | 1.40 in (2003) |
| May 23 | 96.1°F (2011) | 43.0°F (2002) | 2.21 in (2018) |
| May 24 | 93.9°F (2000) | 46.9°F (2001) | 0.41 in (2017) |
| May 25 | 96.1°F (2000) | 46.0°F (2002) | 0.46 in (2011) |
| May 26 | 96.1°F (2000) | 48.0°F (2005) | 1.55 in (2015) |
| May 27 | 96.1°F (2000) | 48.9°F (2005) | 1.30 in (2015) |
| May 28 | 96.1°F (2000) | 53.1°F (2003) | 0.69 in (2025) |
| May 29 | 95.0°F (2006) | 50.0°F (2007) | 1.00 in (2001) |
| May 30 | 95.0°F (2006) | 52.0°F (2003) | 1.75 in (2010) |
| May 31 | 95.0°F (2006) | 51.1°F (2001) | 1.04 in (2005) |