September weather in Biron, WI
The average temperature in Biron in September is 59.3°F (47.2°F–71.3°F). Average precipitation: 3.43 inches.
September is a fall month in Biron, and is warmer than the annual average of 43.8°F. Daily temperatures swing about 24.1°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 12h 17m. For travel, September is a comfortable month to visit.
Avg High
71.3°F
Avg Low
47.2°F
Precipitation
3.43 in
Daylight
12h 17m
September records in Biron
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 97.0°F (1913) | 32.0°F (1992) | 0.88 in (1914) |
| September 2 | 100.0°F (1913) | 33.1°F (1909) | 1.70 in (2002) |
| September 3 | 93.9°F (1960) | 30.9°F (1908) | 1.15 in (1958) |
| September 4 | 95.0°F (1948) | 32.0°F (1974) | 1.55 in (1968) |
| September 5 | 91.9°F (1948) | 36.0°F (1957) | 2.00 in (1958) |
| September 6 | 96.1°F (1913) | 32.0°F (1962) | 1.62 in (2001) |
| September 7 | 95.0°F (1976) | 33.1°F (1953) | 1.18 in (2001) |
| September 8 | 96.1°F (1978) | 35.1°F (1988) | 1.74 in (1968) |
| September 9 | 97.0°F (1955) | 35.1°F (1914) | 1.98 in (1970) |
| September 10 | 93.0°F (1978) | 26.1°F (1918) | 1.60 in (1986) |
| September 11 | 91.0°F (1952) | 30.0°F (1917) | 3.52 in (1978) |
| September 12 | 91.9°F (1952) | 27.0°F (1955) | 1.87 in (1984) |
| September 13 | 91.0°F (1952) | 33.1°F (1953) | 2.30 in (1962) |
| September 14 | 84.9°F (1908) | 32.0°F (1974) | 1.50 in (1990) |
| September 15 | 87.1°F (1994) | 30.9°F (1964) | 1.68 in (1967) |
| September 16 | 99.0°F (1948) | 30.0°F (2007) | 2.88 in (1992) |
| September 17 | 97.0°F (1948) | 30.0°F (1916) | 1.02 in (1965) |
| September 18 | 93.9°F (1948) | 28.0°F (1916) | 1.79 in (1911) |
| September 19 | 90.0°F (1908) | 26.1°F (1956) | 2.32 in (1965) |
| September 20 | 91.0°F (1908) | 25.0°F (1956) | 1.24 in (1972) |
| September 21 | 86.0°F (2005) | 28.9°F (1974) | 1.50 in (1986) |
| September 22 | 90.0°F (1908) | 23.0°F (1974) | 1.48 in (1988) |
| September 23 | 84.9°F (1908) | 21.0°F (1974) | 3.34 in (2010) |
| September 24 | 84.9°F (1908) | 23.0°F (1976) | 2.17 in (2010) |
| September 25 | 86.0°F (1908) | 28.9°F (1985) | 2.99 in (1972) |
| September 26 | 87.1°F (1908) | 27.0°F (1966) | 1.91 in (1959) |
| September 27 | 84.0°F (1987) | 25.0°F (1991) | 2.26 in (1916) |
| September 28 | 86.0°F (1905) | 25.0°F (1976) | 1.03 in (1965) |
| September 29 | 82.0°F (1905) | 19.0°F (1949) | 1.71 in (1911) |
| September 30 | 84.0°F (2002) | 25.0°F (1993) | 0.61 in (1977) |