May weather in Lyman, WY
The average temperature in Lyman in May is 47.7°F (32.8°F–62.6°F). Average precipitation: 1.36 inches. Average snowfall is 3.0 inches.
May is a spring month in Lyman, and is warmer than the annual average of 40.8°F. Daily temperatures swing about 29.8°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 14h 19m. For travel, May is cool.
Avg High
62.6°F
Avg Low
32.8°F
Precipitation
1.36 in
Snow
3.0 in
May records in Lyman
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 75.9°F (1981) | 15.1°F (1967) | 0.45 in (1988) |
| May 2 | 75.0°F (1985) | 12.9°F (2013) | 0.80 in (1979) |
| May 3 | 77.0°F (1986) | 19.9°F (2008) | 1.17 in (2001) |
| May 4 | 77.0°F (2000) | 15.1°F (1977) | 0.38 in (1993) |
| May 5 | 77.0°F (1992) | 16.0°F (2010) | 0.60 in (2007) |
| May 6 | 77.0°F (1966) | 23.0°F (1975) | 0.39 in (2025) |
| May 7 | 78.1°F (1989) | 18.0°F (2010) | 0.65 in (2005) |
| May 8 | 75.9°F (2017) | 18.0°F (2010) | 0.38 in (1986) |
| May 9 | 75.0°F (1989) | 18.0°F (2002) | 1.39 in (2019) |
| May 10 | 75.9°F (2004) | 18.0°F (1999) | 0.63 in (1985) |
| May 11 | 78.1°F (2007) | 19.9°F (1970) | 0.89 in (2010) |
| May 12 | 78.1°F (1988) | 19.9°F (2000) | 0.63 in (2010) |
| May 13 | 81.0°F (1996) | 19.0°F (1983) | 0.22 in (1968) |
| May 14 | 82.9°F (1975) | 16.0°F (1983) | 0.32 in (1977) |
| May 15 | 79.0°F (2012) | 23.0°F (2017) | 0.35 in (1990) |
| May 16 | 79.0°F (1988) | 15.1°F (2020) | 0.27 in (1978) |
| May 17 | 79.0°F (2006) | 21.9°F (1984) | 0.66 in (2011) |
| May 18 | 81.0°F (2009) | 19.9°F (2017) | 0.28 in (1996) |
| May 19 | 80.1°F (2002) | 21.9°F (2003) | 0.45 in (1983) |
| May 20 | 82.0°F (2008) | 24.1°F (2003) | 0.90 in (1975) |
| May 21 | 80.1°F (2012) | 18.0°F (2022) | 0.95 in (2008) |
| May 22 | 79.0°F (1967) | 21.9°F (1975) | 0.68 in (2019) |
| May 23 | 81.0°F (2003) | 19.9°F (1966) | 0.64 in (1995) |
| May 24 | 78.1°F (1967) | 24.1°F (2024) | 0.20 in (2019) |
| May 25 | 80.1°F (2003) | 26.1°F (1975) | 0.44 in (1996) |
| May 26 | 81.0°F (2018) | 16.0°F (1975) | 0.40 in (2000) |
| May 27 | 82.0°F (2003) | 27.0°F (1973) | 0.63 in (2023) |
| May 28 | 86.0°F (2003) | 26.1°F (1977) | 0.30 in (1995) |
| May 29 | 87.1°F (2003) | 23.0°F (1982) | 1.09 in (2011) |
| May 30 | 84.9°F (2003) | 19.0°F (1970) | 0.47 in (2005) |
| May 31 | 86.0°F (2002) | 19.0°F (1970) | 0.38 in (1989) |