May weather in Poplar, MT
The average temperature in Poplar in May is 52.4°F (37.9°F–66.9°F). Average precipitation: 2.19 inches.
May is a spring month in Poplar, and is warmer than the annual average of 40.5°F. Daily temperatures swing about 29°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 14h 58m. For travel, May is cool.
Avg High
66.9°F
Avg Low
37.9°F
Precipitation
2.19 in
Daylight
14h 58m
May records in Poplar
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 77.5°F (2021) | 15.1°F (2002) | 0.77 in (2008) |
| May 2 | 79.2°F (2007) | 15.3°F (2005) | 0.26 in (2006) |
| May 3 | 81.7°F (2007) | 7.7°F (2005) | 0.49 in (2007) |
| May 4 | 86.9°F (2025) | 11.8°F (2002) | 0.27 in (2007) |
| May 5 | 88.2°F (2016) | 24.6°F (2006) | 1.00 in (2003) |
| May 6 | 89.6°F (2017) | 22.8°F (2021) | 0.97 in (2024) |
| May 7 | 80.6°F (2004) | 23.4°F (2002) | 1.71 in (2005) |
| May 8 | 85.1°F (2025) | 21.0°F (2010) | 1.11 in (2021) |
| May 9 | 84.6°F (2007) | 21.9°F (2015) | 1.23 in (2011) |
| May 10 | 90.9°F (2025) | 18.1°F (2002) | 1.44 in (2011) |
| May 11 | 89.8°F (2025) | 18.5°F (2020) | 0.63 in (2004) |
| May 12 | 91.8°F (2025) | 23.9°F (2019) | 0.88 in (2022) |
| May 13 | 90.3°F (2013) | 25.5°F (2014) | 0.97 in (2003) |
| May 14 | 84.4°F (2012) | 22.1°F (2009) | 0.04 in (2019) |
| May 15 | 83.5°F (2018) | 23.4°F (2009) | 0.31 in (2025) |
| May 16 | 89.6°F (2012) | 21.2°F (2009) | 0.67 in (2015) |
| May 17 | 86.0°F (2007) | 21.7°F (2002) | 0.59 in (2019) |
| May 18 | 95.2°F (2006) | 23.5°F (2015) | 0.54 in (2014) |
| May 19 | 86.2°F (2006) | 21.7°F (2015) | 0.46 in (2004) |
| May 20 | 85.8°F (2020) | 23.2°F (2003) | 0.60 in (2011) |
| May 21 | 84.0°F (2002) | 25.9°F (2022) | 1.11 in (2011) |
| May 22 | 87.4°F (2023) | 20.7°F (2022) | 0.45 in (2010) |
| May 23 | 89.6°F (2006) | 30.0°F (2002) | 1.28 in (2007) |
| May 24 | 86.7°F (2014) | 25.3°F (2002) | 0.79 in (2010) |
| May 25 | 85.1°F (2018) | 28.9°F (2004) | 0.51 in (2023) |
| May 26 | 88.5°F (2018) | 27.1°F (2007) | 0.46 in (2013) |
| May 27 | 81.1°F (2018) | 32.5°F (2019) | 1.36 in (2013) |
| May 28 | 84.7°F (2014) | 29.3°F (2005) | 0.39 in (2010) |
| May 29 | 87.1°F (2003) | 29.1°F (2015) | 0.23 in (2004) |
| May 30 | 88.5°F (2009) | 33.8°F (2017) | 1.29 in (2013) |
| May 31 | 87.1°F (2020) | 31.5°F (2017) | 1.44 in (2013) |