September weather in Concord, NH
The average temperature in Concord in September is 61.4°F (49.0°F–73.7°F). Average precipitation: 3.63 inches.
September is a fall month in Concord, and is warmer than the annual average of 47.2°F. Daily temperatures swing about 24.7°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 17m. For travel, September is a comfortable month to visit.
Avg High
73.7°F
Avg Low
49.0°F
Precipitation
3.63 in
Daylight
12h 17m
September records in Concord
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 95.0°F (2010) | 36.0°F (1970) | 1.68 in (2013) |
| September 2 | 98.1°F (1953) | 34.0°F (1970) | 1.63 in (1956) |
| September 3 | 93.9°F (2018) | 35.1°F (1970) | 1.63 in (1974) |
| September 4 | 91.9°F (1961) | 34.0°F (1987) | 2.06 in (1966) |
| September 5 | 91.9°F (2023) | 35.1°F (1963) | 1.41 in (2022) |
| September 6 | 91.9°F (2018) | 33.1°F (2000) | 3.92 in (2008) |
| September 7 | 95.0°F (2007) | 34.0°F (1962) | 1.28 in (2008) |
| September 8 | 93.9°F (1959) | 32.0°F (1978) | 0.99 in (2004) |
| September 9 | 95.0°F (2002) | 30.0°F (1980) | 1.17 in (1981) |
| September 10 | 93.0°F (2002) | 28.9°F (1978) | 2.69 in (1999) |
| September 11 | 95.0°F (1983) | 30.9°F (1967) | 3.02 in (1954) |
| September 12 | 91.0°F (1961) | 30.0°F (1977) | 4.12 in (1960) |
| September 13 | 93.0°F (1948) | 28.9°F (1939) | 1.49 in (1987) |
| September 14 | 89.1°F (1976) | 30.0°F (1963) | 2.98 in (1944) |
| September 15 | 95.0°F (1939) | 27.0°F (1975) | 1.26 in (1990) |
| September 16 | 96.1°F (1939) | 27.0°F (1964) | 3.30 in (1999) |
| September 17 | 87.1°F (1991) | 28.0°F (1948) | 1.13 in (1995) |
| September 18 | 91.0°F (1955) | 28.9°F (1939) | 2.42 in (2004) |
| September 19 | 91.0°F (1983) | 28.2°F (2020) | 2.15 in (2016) |
| September 20 | 91.9°F (1983) | 27.1°F (2020) | 2.18 in (1977) |
| September 21 | 93.0°F (1978) | 27.1°F (2020) | 1.12 in (1966) |
| September 22 | 91.9°F (1970) | 27.1°F (2020) | 1.49 in (1966) |
| September 23 | 87.1°F (1970) | 27.0°F (1955) | 1.57 in (2003) |
| September 24 | 91.0°F (2017) | 24.1°F (1963) | 0.94 in (1955) |
| September 25 | 90.0°F (2017) | 26.1°F (1963) | 2.67 in (1991) |
| September 26 | 90.0°F (2007) | 27.0°F (1950) | 1.52 in (2024) |
| September 27 | 90.0°F (2017) | 21.9°F (1947) | 1.51 in (1939) |
| September 28 | 87.1°F (2014) | 21.0°F (1947) | 1.15 in (2012) |
| September 29 | 86.0°F (1952) | 25.0°F (1947) | 3.35 in (2011) |
| September 30 | 86.0°F (1986) | 19.9°F (1941) | 3.60 in (2015) |