September weather in Lake St. Croix Beach, MN
The average temperature in Lake St. Croix Beach in September is 65.3°F (54.7°F–76.0°F). Average precipitation: 3.19 inches.
September is a fall month in Lake St. Croix Beach, and is warmer than the annual average of 48.4°F. Daily temperatures swing about 21.3°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 18m. For travel, September is one of the best months of the year to visit.
Avg High
76.0°F
Avg Low
54.7°F
Precipitation
3.19 in
Daylight
12h 18m
September records in Lake St. Croix Beach
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 95.0°F (1960) | 42.1°F (1974) | 2.35 in (1989) |
| September 2 | 97.0°F (1960) | 42.1°F (1965) | 1.48 in (1966) |
| September 3 | 96.1°F (1960) | 35.1°F (1974) | 2.12 in (2000) |
| September 4 | 91.0°F (1979) | 37.9°F (1974) | 1.23 in (1986) |
| September 5 | 95.0°F (1960) | 37.0°F (1974) | 1.12 in (1911) |
| September 6 | 98.1°F (1960) | 41.0°F (1962) | 2.37 in (2002) |
| September 7 | 93.9°F (2003) | 43.0°F (1979) | 0.85 in (1916) |
| September 8 | 95.0°F (2003) | 39.9°F (1993) | 2.31 in (1991) |
| September 9 | 91.9°F (1961) | 39.9°F (1969) | 1.40 in (1946) |
| September 10 | 91.0°F (2002) | 41.0°F (1959) | 1.45 in (1986) |
| September 11 | 89.1°F (1998) | 37.9°F (1959) | 1.30 in (1913) |
| September 12 | 91.9°F (1990) | 37.9°F (1964) | 1.65 in (1951) |
| September 13 | 91.0°F (1998) | 37.0°F (1963) | 2.69 in (1951) |
| September 14 | 93.9°F (1998) | 37.0°F (1996) | 2.07 in (1991) |
| September 15 | 87.1°F (1969) | 34.0°F (1964) | 1.59 in (2004) |
| September 16 | 86.0°F (1998) | 35.1°F (1984) | 3.56 in (1992) |
| September 17 | 87.1°F (1998) | 28.9°F (1959) | 1.91 in (1997) |
| September 18 | 91.0°F (2000) | 32.0°F (1959) | 1.22 in (1905) |
| September 19 | 91.0°F (1984) | 35.1°F (1979) | 1.86 in (1905) |
| September 20 | 91.0°F (1998) | 34.0°F (1991) | 2.25 in (1988) |
| September 21 | 87.1°F (2005) | 34.0°F (1982) | 2.18 in (1986) |
| September 22 | 88.0°F (2005) | 26.1°F (1974) | 2.02 in (2005) |
| September 23 | 84.9°F (2004) | 27.0°F (1983) | 2.19 in (1968) |
| September 24 | 79.0°F (1990) | 33.1°F (1989) | 1.55 in (1985) |
| September 25 | 84.9°F (1990) | 28.0°F (1989) | 0.92 in (1973) |
| September 26 | 87.1°F (1986) | 27.0°F (1984) | 1.12 in (1973) |
| September 27 | 88.0°F (1983) | 30.0°F (1991) | 1.18 in (1981) |
| September 28 | 88.0°F (1987) | 30.9°F (1961) | 0.64 in (1947) |
| September 29 | 84.9°F (2000) | 28.0°F (1984) | 1.15 in (1911) |
| September 30 | 84.9°F (1971) | 28.9°F (1972) | 1.29 in (1971) |