May weather in Island Park, ID
The average temperature in Island Park in May is °F (°F–°F). Average precipitation: 4.25 inches.
May is a spring month in Island Park, and is cooler than the annual average of 0°F. Expect about 12 days with precipitation. Daylight averages about 14h 36m.
Avg High
°F
Avg Low
°F
Precipitation
4.25 in
Daylight
14h 36m
May records in Island Park
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 67.3°F (2007) | 16.9°F (1995) | 0.70 in (1984) |
| May 2 | 66.0°F (2023) | 18.5°F (2024) | 1.60 in (1999) |
| May 3 | 63.7°F (2023) | 17.6°F (1996) | 1.10 in (2003) |
| May 4 | 66.0°F (1992) | 18.9°F (2010) | 1.00 in (2003) |
| May 5 | 69.3°F (1992) | 13.6°F (1999) | 1.10 in (2009) |
| May 6 | 70.9°F (1992) | 17.2°F (2001) | 0.90 in (1995) |
| May 7 | 68.7°F (1992) | 17.4°F (2010) | 1.20 in (1993) |
| May 8 | 66.9°F (1994) | 15.3°F (2002) | 0.90 in (1991) |
| May 9 | 69.8°F (1994) | 16.0°F (2002) | 1.40 in (2014) |
| May 10 | 68.0°F (2025) | 16.3°F (2022) | 1.00 in (1986) |
| May 11 | 74.1°F (1993) | 16.3°F (1999) | 1.10 in (1985) |
| May 12 | 73.4°F (2001) | 16.3°F (2000) | 1.40 in (1991) |
| May 13 | 71.4°F (2001) | 20.7°F (2004) | 0.60 in (1999) |
| May 14 | 72.1°F (2006) | 21.4°F (1999) | 2.20 in (1998) |
| May 15 | 74.5°F (2006) | 19.4°F (1990) | 1.50 in (2001) |
| May 16 | 73.2°F (2006) | 23.4°F (1990) | 2.00 in (2004) |
| May 17 | 78.1°F (2006) | 24.6°F (2017) | 0.70 in (1991) |
| May 18 | 74.8°F (2006) | 20.3°F (2003) | 1.40 in (2005) |
| May 19 | 72.7°F (2007) | 15.8°F (1989) | 0.50 in (1996) |
| May 20 | 69.1°F (2002) | 23.7°F (1996) | 0.80 in (2020) |
| May 21 | 66.9°F (2012) | 25.9°F (1996) | 1.70 in (1993) |
| May 22 | 66.7°F (1991) | 24.4°F (2010) | 1.10 in (1998) |
| May 23 | 72.9°F (2001) | 23.9°F (1996) | 1.20 in (2018) |
| May 24 | 76.5°F (2001) | 24.6°F (1989) | 1.20 in (2021) |
| May 25 | 73.4°F (2003) | 20.3°F (1989) | 0.60 in (2012) |
| May 26 | 71.2°F (1994) | 25.9°F (1989) | 1.50 in (2004) |
| May 27 | 71.8°F (2003) | 22.6°F (2011) | 0.80 in (1994) |
| May 28 | 77.9°F (2003) | 26.1°F (1991) | 2.10 in (2022) |
| May 29 | 76.5°F (2003) | 28.9°F (2006) | 0.80 in (2010) |
| May 30 | 76.3°F (2003) | 28.9°F (2004) | 1.00 in (1999) |
| May 31 | 73.0°F (2025) | 26.6°F (1996) | 0.40 in (2005) |