September weather in Leavenworth, KS
The average temperature in Leavenworth in September is 69.4°F (58.3°F–80.5°F). Average precipitation: 4.58 inches.
September is a fall month in Leavenworth, and is warmer than the annual average of 55.8°F. Daily temperatures swing about 22.2°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 15m. For travel, September is a comfortable month to visit.
Avg High
80.5°F
Avg Low
58.3°F
Precipitation
4.58 in
Daylight
12h 15m
September records in Leavenworth
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 102.0°F (1913) | 44.1°F (1949) | 3.10 in (1935) |
| September 2 | 102.0°F (1954) | 48.0°F (1949) | 2.20 in (1918) |
| September 3 | 111.0°F (1947) | 43.0°F (1930) | 2.40 in (1921) |
| September 4 | 109.0°F (1947) | 41.0°F (1974) | 2.19 in (1951) |
| September 5 | 102.0°F (1931) | 42.1°F (1988) | 1.52 in (1992) |
| September 6 | 102.9°F (1939) | 45.0°F (1950) | 1.55 in (1989) |
| September 7 | 102.0°F (1939) | 39.9°F (1956) | 2.97 in (1972) |
| September 8 | 102.9°F (1947) | 39.9°F (1956) | 2.54 in (1960) |
| September 9 | 100.9°F (1947) | 42.1°F (1943) | 1.96 in (1903) |
| September 10 | 99.0°F (1936) | 42.1°F (1962) | 2.70 in (1911) |
| September 11 | 100.9°F (1936) | 42.1°F (1940) | 4.07 in (1975) |
| September 12 | 100.9°F (1956) | 41.0°F (1940) | 6.97 in (1977) |
| September 13 | 100.0°F (1893) | 39.0°F (1902) | 3.74 in (1961) |
| September 14 | 99.0°F (1939) | 39.0°F (1974) | 3.62 in (1984) |
| September 15 | 100.0°F (1939) | 37.0°F (1919) | 3.41 in (1988) |
| September 16 | 100.0°F (1931) | 36.0°F (1984) | 2.61 in (1905) |
| September 17 | 100.9°F (1953) | 39.0°F (1943) | 1.25 in (1913) |
| September 18 | 99.0°F (1931) | 37.0°F (1901) | 2.30 in (1986) |
| September 19 | 97.0°F (1931) | 33.1°F (1991) | 2.97 in (1993) |
| September 20 | 96.1°F (1931) | 35.1°F (1991) | 2.80 in (1957) |
| September 21 | 98.1°F (1956) | 34.0°F (1983) | 3.92 in (1931) |
| September 22 | 100.0°F (1937) | 30.9°F (1995) | 2.58 in (1970) |
| September 23 | 93.9°F (1937) | 30.0°F (1983) | 3.52 in (1986) |
| September 24 | 90.0°F (1933) | 27.0°F (1983) | 1.82 in (1962) |
| September 25 | 93.9°F (1938) | 32.0°F (1912) | 1.82 in (1973) |
| September 26 | 96.1°F (1938) | 33.1°F (1926) | 1.68 in (1973) |
| September 27 | 93.9°F (1956) | 27.0°F (1942) | 1.81 in (1999) |
| September 28 | 102.0°F (1953) | 28.0°F (1942) | 2.87 in (1988) |
| September 29 | 93.0°F (1953) | 30.9°F (1916) | 2.30 in (1893) |
| September 30 | 93.0°F (1938) | 30.0°F (1984) | 1.55 in (1945) |