September weather in Herndon, KS
The average temperature in Herndon in September is 66.2°F (51.4°F–80.9°F). Average precipitation: 1.72 inches.
September is a fall month in Herndon, and is warmer than the annual average of 52.1°F. Daily temperatures swing about 29.5°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 12h 15m. For travel, September is a comfortable month to visit.
Avg High
80.9°F
Avg Low
51.4°F
Precipitation
1.72 in
Daylight
12h 15m
September records in Herndon
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 104.0°F (1948) | 37.0°F (1932) | 0.68 in (1909) |
| September 2 | 107.1°F (1939) | 39.0°F (1952) | 1.37 in (1941) |
| September 3 | 102.9°F (1945) | 30.9°F (1974) | 2.60 in (2016) |
| September 4 | 105.1°F (1945) | 39.0°F (2008) | 2.43 in (1965) |
| September 5 | 105.1°F (1931) | 39.0°F (2008) | 1.25 in (1905) |
| September 6 | 104.0°F (1939) | 37.0°F (1956) | 1.71 in (2005) |
| September 7 | 105.1°F (1971) | 39.0°F (1957) | 0.72 in (1994) |
| September 8 | 105.1°F (2013) | 41.0°F (2012) | 2.95 in (1901) |
| September 9 | 104.0°F (1964) | 35.1°F (1970) | 1.70 in (2020) |
| September 10 | 102.0°F (1936) | 33.1°F (1959) | 2.20 in (1897) |
| September 11 | 99.0°F (1939) | 33.1°F (1945) | 2.03 in (1924) |
| September 12 | 100.0°F (1931) | 30.0°F (1949) | 2.70 in (1898) |
| September 13 | 100.9°F (1955) | 28.9°F (1974) | 0.75 in (1989) |
| September 14 | 100.9°F (2000) | 28.9°F (1945) | 0.52 in (1998) |
| September 15 | 100.0°F (1955) | 30.0°F (1916) | 2.75 in (1970) |
| September 16 | 100.9°F (1955) | 34.0°F (1951) | 1.50 in (1964) |
| September 17 | 102.0°F (1947) | 28.9°F (1981) | 1.68 in (1923) |
| September 18 | 100.0°F (1925) | 34.0°F (1949) | 1.39 in (1917) |
| September 19 | 102.9°F (1980) | 30.0°F (2003) | 1.40 in (1996) |
| September 20 | 100.9°F (1980) | 23.0°F (1983) | 0.60 in (1965) |
| September 21 | 99.0°F (1986) | 28.0°F (1983) | 2.25 in (1963) |
| September 22 | 97.0°F (1937) | 26.1°F (1995) | 2.71 in (1941) |
| September 23 | 98.1°F (1954) | 27.0°F (1995) | 1.53 in (2017) |
| September 24 | 96.1°F (1966) | 28.9°F (1944) | 0.52 in (1973) |
| September 25 | 93.9°F (1938) | 19.0°F (1926) | 1.25 in (2017) |
| September 26 | 100.0°F (1998) | 24.1°F (1942) | 0.77 in (1955) |
| September 27 | 96.1°F (1952) | 25.0°F (1984) | 0.62 in (1907) |
| September 28 | 100.9°F (1953) | 26.1°F (1984) | 2.10 in (1973) |
| September 29 | 98.1°F (1969) | 21.9°F (1945) | 1.70 in (1965) |
| September 30 | 96.1°F (1938) | 3.9°F (1994) | 1.00 in (1904) |