September weather in Portis, KS
The average temperature in Portis in September is °F (°F–°F). Average precipitation: 2.46 inches.
September is a fall month in Portis, and is cooler than the annual average of 0°F. Expect about 6 days with precipitation. Daylight averages about 12h 15m.
Avg High
°F
Avg Low
°F
Precipitation
2.46 in
Daylight
12h 15m
September records in Portis
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 109.0°F (1922) | 50.0°F (1914) | 3.12 in (1918) |
| September 2 | 100.0°F (1921) | 39.9°F (1924) | 4.10 in (2018) |
| September 3 | 108.0°F (1921) | 48.0°F (1924) | 2.50 in (1973) |
| September 4 | 102.0°F (1914) | 48.9°F (1918) | 2.18 in (1965) |
| September 5 | 109.9°F (1931) | 45.0°F (1921) | 2.76 in (2012) |
| September 6 | 107.1°F (1924) | 45.0°F (1921) | 2.02 in (1964) |
| September 7 | 106.0°F (1931) | 46.0°F (1923) | 2.36 in (1946) |
| September 8 | 102.9°F (1931) | 46.9°F (1923) | 0.90 in (1948) |
| September 9 | 102.0°F (1919) | 46.9°F (1929) | 1.41 in (1954) |
| September 10 | 100.0°F (1931) | 39.0°F (1929) | 1.32 in (1914) |
| September 11 | 99.0°F (1931) | 39.9°F (1922) | 3.80 in (2003) |
| September 12 | 100.9°F (1931) | 39.9°F (1924) | 3.95 in (1961) |
| September 13 | 102.0°F (1922) | 44.1°F (1925) | 4.24 in (1946) |
| September 14 | 102.0°F (1931) | 42.1°F (1929) | 1.96 in (1926) |
| September 15 | 106.0°F (1931) | 34.0°F (1916) | 2.57 in (1941) |
| September 16 | 104.0°F (1931) | 46.0°F (1920) | 1.37 in (1968) |
| September 17 | 107.1°F (1925) | 39.9°F (1918) | 3.36 in (2024) |
| September 18 | 109.9°F (1925) | 41.0°F (1916) | 4.63 in (1919) |
| September 19 | 100.9°F (1931) | 39.0°F (1927) | 2.63 in (1993) |
| September 20 | 98.1°F (1920) | 27.0°F (1918) | 0.88 in (1983) |
| September 21 | 98.1°F (1926) | 35.1°F (1915) | 1.32 in (2022) |
| September 22 | 98.1°F (1930) | 37.9°F (1927) | 1.93 in (2006) |
| September 23 | 100.0°F (1922) | 37.9°F (1927) | 1.65 in (2004) |
| September 24 | 96.1°F (1920) | 39.9°F (1926) | 1.47 in (2010) |
| September 25 | 93.9°F (1920) | 30.9°F (1926) | 1.50 in (1936) |
| September 26 | 93.9°F (1924) | 34.0°F (1926) | 1.18 in (2017) |
| September 27 | 91.0°F (1923) | 36.0°F (1917) | 1.80 in (1919) |
| September 28 | 99.0°F (1921) | 35.1°F (1927) | 2.40 in (1973) |
| September 29 | 93.9°F (1925) | 26.1°F (1916) | 2.95 in (1986) |
| September 30 | 90.0°F (1926) | 28.9°F (1920) | 1.63 in (1998) |