May weather in Grand Isle, LA
The average temperature in Grand Isle in May is °F (°F–°F). Average precipitation: 3.49 inches.
May is a spring month in Grand Isle, and is cooler than the annual average of 0°F. Expect about 5 days with precipitation. Daylight averages about 13h 28m.
Avg High
°F
Avg Low
°F
Precipitation
3.49 in
Daylight
13h 28m
May records in Grand Isle
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 88.0°F (1954) | 60.1°F (1965) | 1.55 in (2004) |
| May 2 | 89.1°F (1962) | 60.1°F (2014) | 0.97 in (1964) |
| May 3 | 87.1°F (2012) | 57.9°F (1965) | 2.05 in (1954) |
| May 4 | 90.0°F (1952) | 51.1°F (1954) | 1.40 in (2008) |
| May 5 | 89.1°F (1952) | 54.0°F (1954) | 0.65 in (1960) |
| May 6 | 88.0°F (1962) | 55.0°F (1954) | 0.41 in (2006) |
| May 7 | 89.1°F (1955) | 55.0°F (1954) | 1.67 in (1960) |
| May 8 | 90.0°F (1967) | 55.9°F (1954) | 0.83 in (1957) |
| May 9 | 89.1°F (1959) | 51.1°F (1954) | 1.69 in (1961) |
| May 10 | 91.0°F (2011) | 55.0°F (1961) | 1.50 in (1958) |
| May 11 | 90.0°F (1959) | 55.9°F (1961) | 2.03 in (2013) |
| May 12 | 89.1°F (1962) | 54.0°F (1960) | 1.85 in (1959) |
| May 13 | 88.0°F (1962) | 46.9°F (1960) | 0.65 in (1964) |
| May 14 | 91.0°F (1955) | 57.0°F (1954) | 1.08 in (1987) |
| May 15 | 90.0°F (1955) | 57.9°F (2014) | 0.26 in (1991) |
| May 16 | 89.1°F (1954) | 59.0°F (1954) | 1.71 in (2004) |
| May 17 | 89.1°F (1950) | 57.9°F (2011) | 2.62 in (1958) |
| May 18 | 91.0°F (1951) | 57.9°F (2011) | 1.73 in (2002) |
| May 19 | 87.1°F (1950) | 60.1°F (1954) | 3.10 in (1995) |
| May 20 | 88.0°F (1956) | 64.0°F (1967) | 2.01 in (1955) |
| May 21 | 90.0°F (1953) | 64.9°F (1951) | 0.85 in (2015) |
| May 22 | 90.0°F (1953) | 64.9°F (1951) | 0.80 in (1991) |
| May 23 | 91.9°F (1962) | 59.0°F (1967) | 0.67 in (1965) |
| May 24 | 91.9°F (1962) | 60.1°F (1967) | 1.20 in (1958) |
| May 25 | 91.9°F (1962) | 60.1°F (1967) | 2.23 in (1991) |
| May 26 | 91.0°F (1953) | 60.1°F (1961) | 1.00 in (2010) |
| May 27 | 93.9°F (1953) | 57.9°F (1961) | 0.66 in (1961) |
| May 28 | 91.0°F (1955) | 61.0°F (1961) | 0.64 in (1956) |
| May 29 | 91.9°F (1953) | 64.9°F (1961) | 1.90 in (2014) |
| May 30 | 96.1°F (1953) | 66.0°F (1950) | 4.69 in (2005) |
| May 31 | 96.1°F (2011) | 68.0°F (1960) | 1.60 in (2014) |