September weather in Norwich, CT
The average temperature in Norwich in September is 65.2°F (54.9°F–75.5°F). Average precipitation: 4.79 inches.
September is a fall month in Norwich, and is warmer than the annual average of 51.8°F. Daily temperatures swing about 20.6°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 16m. For travel, September is a comfortable month to visit.
Avg High
75.5°F
Avg Low
54.9°F
Precipitation
4.79 in
Daylight
12h 16m
September records in Norwich
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 89.1°F (2012) | 43.0°F (1975) | 0.97 in (1982) |
| September 2 | 93.0°F (1980) | 39.9°F (1991) | 6.34 in (2021) |
| September 3 | 93.0°F (1980) | 42.1°F (1968) | 2.10 in (1992) |
| September 4 | 91.0°F (2015) | 44.1°F (1987) | 1.86 in (1966) |
| September 5 | 91.0°F (1983) | 42.1°F (1989) | 1.74 in (2012) |
| September 6 | 95.0°F (1983) | 41.0°F (1989) | 5.85 in (2022) |
| September 7 | 91.9°F (1959) | 39.0°F (1962) | 2.17 in (1996) |
| September 8 | 95.0°F (2023) | 41.0°F (1962) | 1.64 in (1985) |
| September 9 | 93.0°F (2015) | 37.0°F (1990) | 1.35 in (2004) |
| September 10 | 93.9°F (1959) | 39.0°F (1956) | 3.50 in (1999) |
| September 11 | 97.0°F (1983) | 37.9°F (1995) | 0.86 in (2015) |
| September 12 | 93.9°F (2013) | 39.9°F (1991) | 2.69 in (2007) |
| September 13 | 93.0°F (1961) | 37.0°F (1993) | 4.62 in (2018) |
| September 14 | 91.0°F (2005) | 39.0°F (1963) | 1.32 in (1989) |
| September 15 | 88.0°F (2016) | 35.1°F (1975) | 1.69 in (1984) |
| September 16 | 90.0°F (1991) | 35.1°F (1964) | 2.64 in (2002) |
| September 17 | 88.0°F (1991) | 36.0°F (1960) | 2.74 in (1995) |
| September 18 | 88.0°F (2015) | 35.1°F (1990) | 1.52 in (1996) |
| September 19 | 89.1°F (1983) | 34.0°F (1956) | 4.01 in (2004) |
| September 20 | 90.0°F (1983) | 30.0°F (1979) | 2.51 in (1960) |
| September 21 | 87.1°F (1965) | 33.1°F (1956) | 4.12 in (1961) |
| September 22 | 90.0°F (1980) | 33.1°F (1991) | 1.62 in (1961) |
| September 23 | 87.1°F (1959) | 34.0°F (1973) | 2.56 in (1994) |
| September 24 | 91.0°F (1959) | 30.0°F (1963) | 2.12 in (1975) |
| September 25 | 89.1°F (2017) | 32.0°F (1963) | 1.38 in (1991) |
| September 26 | 88.0°F (2017) | 36.0°F (1963) | 4.07 in (2018) |
| September 27 | 87.1°F (2007) | 30.9°F (1957) | 1.24 in (1975) |
| September 28 | 87.1°F (2017) | 30.9°F (1957) | 1.39 in (1958) |
| September 29 | 84.0°F (2014) | 28.9°F (1957) | 3.38 in (2004) |
| September 30 | 84.0°F (1986) | 30.0°F (1991) | 1.48 in (2015) |