May weather in Buffalo, SD
The average temperature in Buffalo in May is 54.1°F (41.9°F–66.3°F). Average precipitation: 2.47 inches.
May is a spring month in Buffalo, and is warmer than the annual average of 45.5°F. Daily temperatures swing about 24.4°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 14h 43m. For travel, May is a comfortable month to visit.
Avg High
66.3°F
Avg Low
41.9°F
Precipitation
2.47 in
Daylight
14h 43m
May records in Buffalo
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 80.1°F (2021) | 19.2°F (2013) | 0.18 in (2019) |
| May 2 | 82.9°F (2000) | 23.0°F (2005) | 0.11 in (2021) |
| May 3 | 82.0°F (2023) | 19.9°F (2005) | 0.64 in (1999) |
| May 4 | 81.0°F (2025) | 26.2°F (2024) | 0.09 in (2009) |
| May 5 | 86.0°F (2016) | 26.2°F (2006) | 1.05 in (2007) |
| May 6 | 84.9°F (2017) | 30.9°F (2002) | 0.62 in (2010) |
| May 7 | 88.0°F (2017) | 27.1°F (2010) | 1.24 in (2020) |
| May 8 | 82.9°F (2004) | 25.2°F (2010) | 0.35 in (2008) |
| May 9 | 81.0°F (2007) | 28.0°F (2002) | 0.45 in (1998) |
| May 10 | 89.1°F (2025) | 24.3°F (2021) | 0.76 in (1999) |
| May 11 | 91.9°F (2025) | 28.2°F (2020) | 0.44 in (2023) |
| May 12 | 93.0°F (2025) | 27.0°F (2000) | 0.66 in (2022) |
| May 13 | 93.0°F (2001) | 21.0°F (2004) | 0.41 in (2023) |
| May 14 | 84.0°F (2001) | 26.2°F (2009) | 0.45 in (2025) |
| May 15 | 82.9°F (2019) | 32.0°F (2005) | 0.60 in (1999) |
| May 16 | 86.0°F (2012) | 26.2°F (2009) | 0.53 in (2004) |
| May 17 | 86.0°F (2024) | 33.1°F (1999) | 1.10 in (2019) |
| May 18 | 88.0°F (2006) | 32.0°F (2000) | 0.58 in (2019) |
| May 19 | 88.0°F (2005) | 30.2°F (2015) | 1.74 in (2011) |
| May 20 | 87.1°F (2021) | 28.9°F (2003) | 0.48 in (2011) |
| May 21 | 84.9°F (2012) | 30.2°F (2022) | 1.44 in (2021) |
| May 22 | 90.0°F (2006) | 26.2°F (2022) | 0.60 in (2019) |
| May 23 | 86.0°F (2023) | 30.9°F (2002) | 1.22 in (2024) |
| May 24 | 82.0°F (2018) | 28.0°F (2002) | 1.29 in (2010) |
| May 25 | 84.0°F (2018) | 37.0°F (2001) | 0.34 in (2015) |
| May 26 | 91.0°F (2018) | 37.0°F (2007) | 1.09 in (2000) |
| May 27 | 84.9°F (2022) | 35.1°F (2021) | 0.65 in (2023) |
| May 28 | 88.0°F (2014) | 35.1°F (2012) | 2.58 in (2001) |
| May 29 | 90.0°F (2003) | 35.1°F (2005) | 0.85 in (2018) |
| May 30 | 84.0°F (2002) | 36.0°F (2015) | 0.52 in (2006) |
| May 31 | 87.1°F (2002) | 39.0°F (2011) | 0.90 in (2005) |