August weather in Mankato, MN
The average temperature in Mankato in August is 69.5°F (59.4°F–79.5°F). Average precipitation: 4.31 inches.
August is a summer month in Mankato, and is warmer than the annual average of 45.3°F. Daily temperatures swing about 20.1°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 13h 50m. For travel, August is a comfortable month to visit.
Avg High
79.5°F
Avg Low
59.4°F
Precipitation
4.31 in
Daylight
13h 50m
August records in Mankato
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 107.1°F (1988) | 46.9°F (1985) | 1.17 in (2004) |
| August 2 | 100.9°F (1988) | 48.9°F (2009) | 2.55 in (2006) |
| August 3 | 100.0°F (1988) | 48.0°F (1986) | 1.05 in (1988) |
| August 4 | 91.9°F (1988) | 50.0°F (1993) | 1.33 in (2002) |
| August 5 | 96.1°F (1989) | 46.9°F (1994) | 1.18 in (1995) |
| August 6 | 93.0°F (2001) | 48.0°F (1994) | 1.13 in (1995) |
| August 7 | 93.9°F (2001) | 48.0°F (1989) | 1.52 in (1992) |
| August 8 | 98.1°F (1988) | 48.0°F (1989) | 3.09 in (1991) |
| August 9 | 91.9°F (2010) | 48.0°F (1989) | 1.90 in (1987) |
| August 10 | 93.9°F (1992) | 45.0°F (1985) | 4.33 in (1994) |
| August 11 | 91.0°F (1993) | 42.1°F (1985) | 1.27 in (1996) |
| August 12 | 95.0°F (1988) | 43.0°F (2001) | 1.38 in (1985) |
| August 13 | 93.0°F (1988) | 45.0°F (2004) | 1.09 in (2010) |
| August 14 | 91.0°F (1995) | 45.0°F (1992) | 0.50 in (1986) |
| August 15 | 90.0°F (1988) | 46.0°F (1992) | 3.02 in (1993) |
| August 16 | 100.0°F (1988) | 46.9°F (1992) | 1.92 in (2004) |
| August 17 | 102.0°F (1988) | 48.9°F (1992) | 1.00 in (1995) |
| August 18 | 98.1°F (1988) | 44.1°F (2002) | 1.89 in (2005) |
| August 19 | 93.9°F (2003) | 39.0°F (1985) | 4.61 in (2007) |
| August 20 | 87.1°F (2008) | 37.9°F (1985) | 1.75 in (2009) |
| August 21 | 91.0°F (2003) | 39.0°F (2004) | 1.13 in (1986) |
| August 22 | 91.9°F (2001) | 39.9°F (2004) | 1.92 in (2002) |
| August 23 | 90.0°F (1989) | 45.0°F (1987) | 0.77 in (1985) |
| August 24 | 89.1°F (1995) | 45.0°F (1987) | 1.14 in (2004) |
| August 25 | 96.1°F (2003) | 46.0°F (1987) | 1.25 in (1992) |
| August 26 | 91.0°F (1993) | 45.0°F (1985) | 1.61 in (1996) |
| August 27 | 93.0°F (1991) | 41.0°F (1986) | 1.43 in (1993) |
| August 28 | 93.0°F (1991) | 39.0°F (1986) | 0.94 in (2008) |
| August 29 | 91.9°F (1991) | 42.1°F (1988) | 0.96 in (1985) |
| August 30 | 91.0°F (1991) | 42.1°F (1988) | 1.71 in (1993) |
| August 31 | 91.9°F (1991) | 43.0°F (1987) | 0.69 in (2010) |