September weather in Franklin, NH
The average temperature in Franklin in September is 59.9°F (48.1°F–71.7°F). Average precipitation: 3.72 inches.
September is a fall month in Franklin, and is warmer than the annual average of 45.2°F. Daily temperatures swing about 23.6°F between overnight low and afternoon high. Daylight averages about 12h 17m. For travel, September is a comfortable month to visit.
Avg High
71.7°F
Avg Low
48.1°F
Precipitation
3.72 in
Daylight
12h 17m
September records in Franklin
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 93.0°F (1953) | 34.0°F (1971) | 1.15 in (1950) |
| September 2 | 96.1°F (1953) | 34.0°F (1971) | 1.62 in (2021) |
| September 3 | 90.0°F (1980) | 34.0°F (1958) | 0.95 in (1951) |
| September 4 | 91.0°F (1973) | 36.0°F (1987) | 2.17 in (1974) |
| September 5 | 90.0°F (1953) | 36.0°F (1965) | 2.00 in (1966) |
| September 6 | 89.1°F (1971) | 32.0°F (1984) | 1.38 in (2011) |
| September 7 | 88.0°F (1948) | 30.0°F (1984) | 1.13 in (1979) |
| September 8 | 90.0°F (2023) | 33.1°F (1984) | 0.60 in (2011) |
| September 9 | 93.0°F (1959) | 34.0°F (1957) | 1.12 in (1987) |
| September 10 | 88.0°F (1959) | 30.9°F (1978) | 0.46 in (1967) |
| September 11 | 91.9°F (1989) | 33.1°F (1978) | 2.68 in (1954) |
| September 12 | 90.0°F (1983) | 30.0°F (1977) | 1.27 in (1960) |
| September 13 | 91.9°F (1948) | 32.0°F (1955) | 3.45 in (1960) |
| September 14 | 91.9°F (1948) | 32.0°F (1955) | 1.77 in (1987) |
| September 15 | 86.0°F (1976) | 28.9°F (1975) | 1.18 in (1951) |
| September 16 | 86.0°F (1958) | 30.0°F (1948) | 0.85 in (1970) |
| September 17 | 90.0°F (1957) | 27.0°F (1959) | 0.78 in (1956) |
| September 18 | 89.1°F (1955) | 30.0°F (1950) | 1.15 in (1958) |
| September 19 | 90.0°F (1955) | 28.0°F (1959) | 0.98 in (2023) |
| September 20 | 87.1°F (1983) | 24.1°F (1979) | 1.25 in (1960) |
| September 21 | 90.0°F (1983) | 26.1°F (1956) | 2.06 in (1977) |
| September 22 | 88.0°F (1965) | 28.0°F (1973) | 2.35 in (1983) |
| September 23 | 90.0°F (1965) | 27.0°F (1955) | 1.30 in (1981) |
| September 24 | 86.0°F (1965) | 26.1°F (1974) | 2.10 in (1956) |
| September 25 | 87.1°F (1959) | 26.1°F (1950) | 0.60 in (1951) |
| September 26 | 88.0°F (2017) | 27.0°F (1976) | 1.67 in (2025) |
| September 27 | 86.0°F (2017) | 26.1°F (1978) | 1.80 in (1975) |
| September 28 | 86.0°F (2017) | 23.0°F (1965) | 0.82 in (1985) |
| September 29 | 84.9°F (1952) | 26.1°F (1978) | 1.14 in (2012) |
| September 30 | 82.0°F (1950) | 25.0°F (1951) | 1.73 in (1963) |