May weather in Bismarck, ND
The average temperature in Bismarck in May is 54.5°F (42.5°F–66.4°F). Average precipitation: 2.56 inches.
May is a spring month in Bismarck, and is warmer than the annual average of 42.3°F. Daily temperatures swing about 23.9°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 14h 50m. For travel, May is a comfortable month to visit.
Avg High
66.4°F
Avg Low
42.5°F
Precipitation
2.56 in
Daylight
14h 50m
May records in Bismarck
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 75.0°F (2015) | 23.0°F (2013) | 0.32 in (2011) |
| May 2 | 75.9°F (2015) | 23.0°F (2011) | 0.08 in (2010) |
| May 3 | 82.9°F (2015) | 25.0°F (2008) | 0.19 in (2012) |
| May 4 | 75.9°F (2016) | 25.0°F (2008) | 0.25 in (2012) |
| May 5 | 80.1°F (2018) | 28.0°F (2013) | 0.14 in (2009) |
| May 6 | 86.0°F (2016) | 30.0°F (2019) | 0.22 in (2012) |
| May 7 | 82.0°F (2017) | 30.0°F (2019) | 0.79 in (2010) |
| May 8 | 87.1°F (2017) | 28.0°F (2010) | 0.10 in (2012) |
| May 9 | 75.9°F (2011) | 28.0°F (2019) | 0.31 in (2021) |
| May 10 | 71.1°F (2018) | 27.0°F (2009) | 0.53 in (2011) |
| May 11 | 84.0°F (2012) | 28.9°F (2008) | 0.61 in (2015) |
| May 12 | 73.9°F (2017) | 28.9°F (2013) | 0.09 in (2018) |
| May 13 | 82.0°F (2017) | 30.9°F (2013) | 0.63 in (2010) |
| May 14 | 89.1°F (2013) | 30.0°F (2009) | 0.45 in (2015) |
| May 15 | 84.0°F (2012) | 26.1°F (2014) | 0.48 in (2015) |
| May 16 | 82.9°F (2019) | 26.1°F (2009) | 0.13 in (2017) |
| May 17 | 84.9°F (2018) | 26.1°F (2009) | 0.82 in (2015) |
| May 18 | 86.0°F (2012) | 30.0°F (2015) | 1.15 in (2015) |
| May 19 | 84.0°F (2009) | 28.0°F (2015) | 1.05 in (2013) |
| May 20 | 78.1°F (2016) | 28.0°F (2015) | 1.20 in (2013) |
| May 21 | 75.0°F (2010) | 34.0°F (2015) | 1.02 in (2011) |
| May 22 | 79.0°F (2012) | 37.9°F (2017) | 0.60 in (2010) |
| May 23 | 82.9°F (2018) | 36.0°F (2009) | 0.16 in (2018) |
| May 24 | 88.0°F (2014) | 37.0°F (2009) | 0.50 in (2019) |
| May 25 | 84.0°F (2018) | 36.0°F (2012) | 1.65 in (2009) |
| May 26 | 90.0°F (2018) | 37.0°F (2008) | 0.94 in (2013) |
| May 27 | 90.0°F (2018) | 37.0°F (2008) | 0.11 in (2010) |
| May 28 | 82.0°F (2010) | 39.0°F (2008) | 0.37 in (2013) |
| May 29 | 89.1°F (2010) | 43.0°F (2011) | 0.16 in (2016) |
| May 30 | 90.0°F (2014) | 35.1°F (2012) | 1.59 in (2013) |
| May 31 | 84.0°F (2019) | 32.0°F (2012) | 0.66 in (2016) |