September weather in Omro, WI
The average temperature in Omro in September is 62.6°F (52.7°F–72.5°F). Average precipitation: 3.26 inches.
September is a fall month in Omro, and is warmer than the annual average of 46.6°F. Daily temperatures swing about 19.8°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 17m. For travel, September is one of the best months of the year to visit.
Avg High
72.5°F
Avg Low
52.7°F
Precipitation
3.26 in
Daylight
12h 17m
September records in Omro
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 97.0°F (1953) | 35.1°F (1909) | 1.59 in (1969) |
| September 2 | 98.1°F (1937) | 39.9°F (1909) | 1.94 in (2000) |
| September 3 | 95.0°F (1937) | 35.1°F (1946) | 1.28 in (1921) |
| September 4 | 95.0°F (1925) | 39.0°F (1974) | 2.40 in (1941) |
| September 5 | 93.0°F (1945) | 37.9°F (1957) | 1.95 in (1910) |
| September 6 | 93.9°F (1954) | 37.0°F (1924) | 1.44 in (1899) |
| September 7 | 95.0°F (1913) | 37.9°F (1986) | 2.03 in (2016) |
| September 8 | 98.1°F (1933) | 37.0°F (1944) | 1.73 in (1938) |
| September 9 | 98.1°F (1931) | 37.9°F (1924) | 1.89 in (1965) |
| September 10 | 99.0°F (1931) | 30.9°F (1917) | 1.80 in (1915) |
| September 11 | 98.1°F (1931) | 35.1°F (1917) | 4.58 in (1986) |
| September 12 | 95.0°F (1952) | 34.0°F (1955) | 2.00 in (1939) |
| September 13 | 93.9°F (1952) | 30.0°F (1923) | 2.00 in (1954) |
| September 14 | 97.0°F (1939) | 28.0°F (1923) | 2.41 in (1931) |
| September 15 | 98.1°F (1939) | 32.0°F (1964) | 1.77 in (1998) |
| September 16 | 93.0°F (1948) | 32.0°F (1916) | 1.36 in (1983) |
| September 17 | 91.0°F (1955) | 32.0°F (1916) | 0.88 in (1997) |
| September 18 | 93.0°F (1955) | 32.0°F (1929) | 2.86 in (1950) |
| September 19 | 91.0°F (1932) | 32.0°F (1929) | 1.49 in (2015) |
| September 20 | 91.9°F (1895) | 28.9°F (1956) | 1.74 in (1913) |
| September 21 | 89.1°F (1908) | 32.0°F (1915) | 2.43 in (2017) |
| September 22 | 93.0°F (1937) | 25.0°F (1974) | 1.75 in (1986) |
| September 23 | 93.0°F (1937) | 28.0°F (1913) | 1.79 in (1988) |
| September 24 | 91.9°F (2017) | 27.0°F (1894) | 1.85 in (1910) |
| September 25 | 91.0°F (1920) | 28.0°F (1942) | 1.78 in (1986) |
| September 26 | 91.0°F (2017) | 28.0°F (1926) | 1.00 in (1927) |
| September 27 | 84.9°F (1946) | 28.9°F (1984) | 0.69 in (1994) |
| September 28 | 91.0°F (1952) | 28.0°F (1942) | 1.32 in (1963) |
| September 29 | 88.0°F (1953) | 25.0°F (1949) | 1.50 in (2015) |
| September 30 | 87.1°F (1900) | 27.0°F (1947) | 1.83 in (1981) |