May weather in San Luis, CO
The average temperature in San Luis in May is 51.2°F (34.5°F–67.9°F). Average precipitation: 0.73 inches.
May is a spring month in San Luis, and is warmer than the annual average of 43.9°F. Daily temperatures swing about 33.4°F between overnight low and afternoon high. Expect about 3 days with precipitation. Daylight averages about 13h 60m. For travel, May is cool.
Avg High
67.9°F
Avg Low
34.5°F
Precipitation
0.73 in
Daylight
13h 60m
May records in San Luis
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 77.0°F (1981) | 3.9°F (1999) | 1.09 in (1999) |
| May 2 | 75.0°F (1992) | 17.1°F (1987) | 0.37 in (1999) |
| May 3 | 75.9°F (2000) | 16.0°F (1987) | 0.40 in (1987) |
| May 4 | 78.1°F (2000) | 16.0°F (1987) | 0.25 in (2005) |
| May 5 | 78.1°F (2000) | 16.0°F (1987) | 0.67 in (2001) |
| May 6 | 75.9°F (1996) | 15.1°F (1987) | 0.35 in (1982) |
| May 7 | 78.1°F (2004) | 15.1°F (1987) | 0.10 in (1982) |
| May 8 | 78.1°F (1989) | 14.0°F (1984) | 0.90 in (1980) |
| May 9 | 82.0°F (1989) | 16.0°F (1999) | 0.05 in (1992) |
| May 10 | 78.1°F (1989) | 18.0°F (1999) | 0.25 in (1997) |
| May 11 | 78.1°F (1989) | 21.9°F (2003) | 0.00 in (1980) |
| May 12 | 78.1°F (1984) | 19.9°F (1988) | 0.28 in (1997) |
| May 13 | 79.0°F (1984) | -6.0°F (1993) | 0.16 in (1987) |
| May 14 | 81.0°F (1996) | -6.0°F (1993) | 0.26 in (1985) |
| May 15 | 79.0°F (1996) | 23.0°F (1987) | 0.47 in (1980) |
| May 16 | 79.0°F (1996) | 23.0°F (1982) | 0.63 in (1980) |
| May 17 | 80.1°F (1996) | 21.0°F (2000) | 0.65 in (1993) |
| May 18 | 80.1°F (2003) | 17.1°F (1983) | 0.28 in (1988) |
| May 19 | 80.1°F (1991) | 25.0°F (1983) | 0.17 in (1993) |
| May 20 | 80.1°F (2005) | 28.0°F (1983) | 0.55 in (1997) |
| May 21 | 82.9°F (2005) | 25.0°F (1983) | 0.12 in (1991) |
| May 22 | 86.0°F (2005) | 28.0°F (1988) | 0.40 in (1985) |
| May 23 | 87.1°F (2005) | 27.0°F (1998) | 0.35 in (1997) |
| May 24 | 84.9°F (2005) | 27.0°F (1988) | 0.34 in (1985) |
| May 25 | 82.0°F (2005) | 24.1°F (1980) | 0.19 in (1982) |
| May 26 | 82.9°F (2006) | 27.0°F (1981) | 0.12 in (1982) |
| May 27 | 87.1°F (2000) | 28.0°F (1981) | 0.12 in (2005) |
| May 28 | 87.1°F (2000) | 23.0°F (1988) | 0.10 in (1992) |
| May 29 | 90.0°F (2000) | 23.0°F (1988) | 0.34 in (1986) |
| May 30 | 86.0°F (2000) | 25.0°F (1988) | 1.10 in (1995) |
| May 31 | 90.0°F (2002) | 21.0°F (1988) | 0.36 in (1983) |