September weather in Decatur, AR
The average temperature in Decatur in September is 72.3°F (60.4°F–84.2°F). Average precipitation: 4.45 inches.
September is a fall month in Decatur, and is warmer than the annual average of 60.5°F. Daily temperatures swing about 23.8°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 13m. For travel, September is a comfortable month to visit.
Avg High
84.2°F
Avg Low
60.4°F
Precipitation
4.45 in
Daylight
12h 13m
September records in Decatur
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 107.1°F (2000) | 46.9°F (1903) | 3.22 in (1974) |
| September 2 | 108.0°F (2000) | 46.9°F (1952) | 2.90 in (1933) |
| September 3 | 106.0°F (1939) | 41.0°F (1974) | 2.98 in (2010) |
| September 4 | 105.1°F (1939) | 39.9°F (1974) | 2.21 in (1940) |
| September 5 | 102.9°F (1998) | 45.0°F (1974) | 3.10 in (1926) |
| September 6 | 102.9°F (1947) | 44.1°F (1950) | 0.98 in (1943) |
| September 7 | 104.0°F (1947) | 44.1°F (1918) | 1.09 in (1923) |
| September 8 | 102.0°F (1937) | 42.1°F (1956) | 5.80 in (1937) |
| September 9 | 100.9°F (1939) | 39.9°F (1902) | 2.04 in (2010) |
| September 10 | 102.0°F (1909) | 41.0°F (1968) | 3.48 in (1937) |
| September 11 | 102.9°F (1909) | 37.0°F (1940) | 3.28 in (1898) |
| September 12 | 100.9°F (1909) | 37.0°F (1940) | 3.77 in (1945) |
| September 13 | 99.0°F (1936) | 30.0°F (1902) | 2.57 in (1961) |
| September 14 | 100.0°F (1939) | 36.0°F (1902) | 5.44 in (1993) |
| September 15 | 100.0°F (1939) | 37.0°F (1993) | 2.75 in (1930) |
| September 16 | 100.9°F (1939) | 39.0°F (1961) | 2.89 in (1995) |
| September 17 | 99.0°F (1939) | 34.0°F (1903) | 3.34 in (2001) |
| September 18 | 93.9°F (1931) | 32.0°F (1901) | 1.75 in (1949) |
| September 19 | 98.1°F (1954) | 36.0°F (1991) | 3.74 in (1975) |
| September 20 | 100.0°F (1954) | 34.0°F (1901) | 3.43 in (2023) |
| September 21 | 97.0°F (2024) | 28.9°F (1983) | 2.60 in (2025) |
| September 22 | 96.1°F (1948) | 30.9°F (1995) | 2.09 in (2009) |
| September 23 | 97.0°F (1937) | 30.0°F (1995) | 1.73 in (1997) |
| September 24 | 95.0°F (1935) | 28.9°F (1989) | 3.22 in (1945) |
| September 25 | 95.0°F (1935) | 32.0°F (1899) | 2.48 in (1959) |
| September 26 | 93.9°F (1938) | 33.1°F (1912) | 5.07 in (1996) |
| September 27 | 97.0°F (1953) | 28.0°F (1942) | 1.29 in (1927) |
| September 28 | 102.0°F (1953) | 30.0°F (1908) | 2.99 in (1935) |
| September 29 | 99.0°F (1953) | 30.0°F (1899) | 4.27 in (1977) |
| September 30 | 93.9°F (1979) | 28.0°F (1984) | 5.90 in (1986) |