September weather in Lynn, IN
The average temperature in Lynn in September is 65.0°F (54.1°F–76.0°F). Average precipitation: 3.04 inches.
September is a fall month in Lynn, and is warmer than the annual average of 50.7°F. Daily temperatures swing about 21.9°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 15m. For travel, September is one of the best months of the year to visit.
Avg High
76.0°F
Avg Low
54.1°F
Precipitation
3.04 in
Daylight
12h 15m
September records in Lynn
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.9°F (1951) | 37.9°F (1967) | 3.00 in (1989) |
| September 2 | 100.0°F (1953) | 42.1°F (1955) | 2.85 in (2003) |
| September 3 | 102.0°F (1953) | 45.0°F (1965) | 1.25 in (1993) |
| September 4 | 93.9°F (2011) | 39.0°F (1997) | 1.70 in (1966) |
| September 5 | 93.0°F (1999) | 42.1°F (1974) | 1.72 in (1943) |
| September 6 | 98.1°F (1954) | 39.0°F (1963) | 0.98 in (1943) |
| September 7 | 99.0°F (1954) | 37.9°F (1956) | 1.26 in (1958) |
| September 8 | 91.9°F (1960) | 36.0°F (1956) | 0.71 in (1942) |
| September 9 | 93.9°F (1960) | 41.0°F (1953) | 1.81 in (2007) |
| September 10 | 93.0°F (1955) | 42.1°F (1969) | 1.76 in (1968) |
| September 11 | 93.9°F (1964) | 37.9°F (1993) | 1.57 in (2000) |
| September 12 | 95.0°F (1952) | 35.1°F (1955) | 1.56 in (1986) |
| September 13 | 93.0°F (1952) | 35.1°F (1964) | 1.62 in (1988) |
| September 14 | 93.0°F (1952) | 35.1°F (1964) | 1.50 in (1977) |
| September 15 | 91.9°F (1998) | 37.9°F (1963) | 2.80 in (1965) |
| September 16 | 90.0°F (1991) | 36.0°F (1966) | 1.29 in (1977) |
| September 17 | 89.1°F (1948) | 34.0°F (1959) | 1.86 in (1969) |
| September 18 | 91.0°F (1953) | 33.1°F (1959) | 0.98 in (1986) |
| September 19 | 91.9°F (1954) | 37.0°F (1959) | 2.00 in (1952) |
| September 20 | 91.0°F (1955) | 32.0°F (1956) | 1.72 in (1966) |
| September 21 | 88.0°F (1978) | 30.9°F (1956) | 0.95 in (2000) |
| September 22 | 91.0°F (2010) | 34.0°F (1999) | 4.38 in (1950) |
| September 23 | 90.0°F (1980) | 28.9°F (1974) | 2.60 in (1955) |
| September 24 | 91.0°F (2010) | 32.0°F (1950) | 1.60 in (1955) |
| September 25 | 91.9°F (2007) | 30.0°F (1942) | 2.04 in (1961) |
| September 26 | 87.1°F (1986) | 34.0°F (1943) | 1.28 in (2005) |
| September 27 | 89.1°F (1998) | 33.1°F (1947) | 1.93 in (2003) |
| September 28 | 89.1°F (1954) | 27.0°F (1942) | 1.91 in (1996) |
| September 29 | 96.1°F (1953) | 30.0°F (1942) | 1.62 in (1955) |
| September 30 | 88.0°F (1971) | 30.0°F (1993) | 0.37 in (1972) |