May weather in Slidell, LA
The average temperature in Slidell in May is 74.4°F (65.7°F–83.0°F). Average precipitation: 5.84 inches.
May is a spring month in Slidell, and is warmer than the annual average of 67.6°F. Daily temperatures swing about 17.3°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 13h 32m. For travel, May is a wet month.
Avg High
83.0°F
Avg Low
65.7°F
Precipitation
5.84 in
Daylight
13h 32m
May records in Slidell
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 89.1°F (1985) | 46.0°F (1996) | 2.80 in (1975) |
| May 2 | 90.0°F (2002) | 46.9°F (2005) | 2.69 in (1977) |
| May 3 | 89.1°F (2002) | 42.1°F (2004) | 2.60 in (2010) |
| May 4 | 90.0°F (2002) | 41.0°F (2013) | 5.48 in (1978) |
| May 5 | 95.0°F (2002) | 46.9°F (1973) | 2.65 in (2021) |
| May 6 | 89.1°F (1982) | 46.0°F (2013) | 1.53 in (1966) |
| May 7 | 91.9°F (1956) | 43.0°F (1992) | 2.93 in (1960) |
| May 8 | 91.0°F (1956) | 45.0°F (1992) | 1.89 in (1991) |
| May 9 | 90.0°F (2002) | 46.9°F (1984) | 9.45 in (1995) |
| May 10 | 89.1°F (1998) | 48.9°F (1961) | 13.42 in (1995) |
| May 11 | 90.0°F (1967) | 50.0°F (1981) | 2.33 in (2004) |
| May 12 | 91.0°F (1979) | 48.0°F (1960) | 2.55 in (2021) |
| May 13 | 91.9°F (1967) | 42.1°F (1960) | 3.34 in (2004) |
| May 14 | 91.9°F (1967) | 51.1°F (1960) | 2.75 in (1969) |
| May 15 | 93.0°F (2018) | 50.0°F (2014) | 3.38 in (2008) |
| May 16 | 91.9°F (2018) | 46.0°F (1973) | 1.34 in (2015) |
| May 17 | 93.0°F (1979) | 48.0°F (2011) | 3.86 in (1980) |
| May 18 | 91.9°F (1988) | 50.0°F (2002) | 13.20 in (1958) |
| May 19 | 95.0°F (1962) | 48.0°F (1976) | 3.90 in (1980) |
| May 20 | 93.0°F (1962) | 52.0°F (2002) | 2.09 in (1984) |
| May 21 | 93.0°F (1964) | 46.9°F (2004) | 1.21 in (1988) |
| May 22 | 93.0°F (1956) | 51.1°F (2002) | 7.64 in (1974) |
| May 23 | 93.9°F (1972) | 50.0°F (2001) | 1.78 in (1979) |
| May 24 | 91.9°F (1962) | 55.0°F (1967) | 1.55 in (2022) |
| May 25 | 91.9°F (1962) | 51.1°F (1979) | 1.77 in (1991) |
| May 26 | 91.9°F (1958) | 46.0°F (1979) | 3.46 in (1986) |
| May 27 | 93.9°F (1963) | 50.0°F (1961) | 1.53 in (2011) |
| May 28 | 95.0°F (2012) | 48.9°F (1961) | 0.96 in (1968) |
| May 29 | 93.9°F (2024) | 57.0°F (1961) | 2.24 in (2025) |
| May 30 | 91.9°F (2001) | 52.0°F (1984) | 5.83 in (2005) |
| May 31 | 95.0°F (1977) | 53.1°F (1984) | 2.45 in (1964) |