May weather in Challis, ID
The average temperature in Challis in May is 53.4°F (40.0°F–66.8°F). Average precipitation: 0.93 inches.
May is a spring month in Challis, and is warmer than the annual average of 44.4°F. Daily temperatures swing about 26.8°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 14h 36m. For travel, May is a comfortable month to visit.
Avg High
66.8°F
Avg Low
40.0°F
Precipitation
0.93 in
Daylight
14h 36m
May records in Challis
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 82.0°F (2023) | 20.1°F (2013) | 0.01 in (1999) |
| May 2 | 80.1°F (2004) | 20.1°F (2008) | 0.27 in (2007) |
| May 3 | 81.0°F (2025) | 25.0°F (2001) | 0.97 in (2022) |
| May 4 | 81.0°F (2017) | 24.3°F (2007) | 0.25 in (2025) |
| May 5 | 82.0°F (2017) | 24.1°F (1999) | 0.43 in (2024) |
| May 6 | 82.0°F (2018) | 25.0°F (2003) | 0.31 in (2017) |
| May 7 | 77.0°F (2004) | 22.1°F (2010) | 0.26 in (2017) |
| May 8 | 82.0°F (2018) | 19.9°F (2002) | 0.13 in (2011) |
| May 9 | 82.0°F (2025) | 21.9°F (2002) | 0.11 in (2005) |
| May 10 | 86.0°F (2025) | 24.3°F (2008) | 0.23 in (2004) |
| May 11 | 81.0°F (2007) | 21.9°F (1999) | 0.06 in (2003) |
| May 12 | 87.1°F (2001) | 28.9°F (2000) | 0.21 in (2004) |
| May 13 | 84.9°F (2013) | 23.2°F (2009) | 0.11 in (1999) |
| May 14 | 82.9°F (2012) | 27.1°F (2017) | 0.17 in (1999) |
| May 15 | 84.0°F (2006) | 30.0°F (2004) | 0.30 in (2015) |
| May 16 | 86.0°F (2006) | 31.1°F (2017) | 0.37 in (2005) |
| May 17 | 88.0°F (2008) | 28.9°F (2003) | 0.52 in (2013) |
| May 18 | 89.1°F (2009) | 28.0°F (2003) | 0.30 in (2020) |
| May 19 | 84.0°F (2002) | 21.0°F (2003) | 0.27 in (2020) |
| May 20 | 87.1°F (2008) | 28.0°F (2003) | 0.24 in (2016) |
| May 21 | 82.9°F (2023) | 27.1°F (2010) | 0.47 in (2002) |
| May 22 | 82.0°F (2003) | 31.1°F (2010) | 0.51 in (2010) |
| May 23 | 86.0°F (2003) | 28.2°F (2007) | 0.32 in (2011) |
| May 24 | 87.1°F (2001) | 31.1°F (2016) | 0.39 in (2008) |
| May 25 | 87.1°F (2001) | 32.0°F (2005) | 0.21 in (2003) |
| May 26 | 82.0°F (2025) | 34.0°F (2011) | 0.16 in (2012) |
| May 27 | 84.9°F (2003) | 31.1°F (2011) | 0.42 in (2010) |
| May 28 | 96.1°F (2003) | 33.1°F (2011) | 0.88 in (2010) |
| May 29 | 91.9°F (2003) | 31.1°F (2007) | 0.55 in (2022) |
| May 30 | 91.0°F (2020) | 31.1°F (2006) | 0.29 in (1999) |
| May 31 | 93.0°F (2025) | 34.0°F (2011) | 0.20 in (2023) |