September weather in Boise City, OK
The average temperature in Boise City in September is 69.2°F (53.8°F–84.6°F). Average precipitation: 1.75 inches.
September is a fall month in Boise City, and is warmer than the annual average of 56.4°F. Daily temperatures swing about 30.8°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 12h 13m. For travel, September is a comfortable month to visit.
Avg High
84.6°F
Avg Low
53.8°F
Precipitation
1.75 in
Daylight
12h 13m
September records in Boise City
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.9°F (1995) | 44.1°F (1932) | 2.31 in (1969) |
| September 2 | 99.0°F (1939) | 39.0°F (1932) | 2.00 in (1988) |
| September 3 | 102.0°F (1939) | 39.9°F (1974) | 1.30 in (2009) |
| September 4 | 100.9°F (1945) | 36.0°F (1961) | 1.37 in (1938) |
| September 5 | 105.1°F (1995) | 36.0°F (1961) | 1.84 in (2014) |
| September 6 | 102.9°F (1995) | 46.0°F (1943) | 1.07 in (2012) |
| September 7 | 100.9°F (1914) | 41.0°F (1918) | 1.93 in (1987) |
| September 8 | 97.0°F (1914) | 42.1°F (1957) | 2.20 in (1948) |
| September 9 | 96.1°F (1983) | 36.0°F (1941) | 1.38 in (1960) |
| September 10 | 96.1°F (1956) | 39.0°F (1962) | 1.00 in (1991) |
| September 11 | 99.0°F (1956) | 43.0°F (1944) | 2.46 in (2013) |
| September 12 | 97.0°F (1962) | 37.0°F (1913) | 1.06 in (1961) |
| September 13 | 97.0°F (1911) | 37.0°F (1945) | 1.10 in (1988) |
| September 14 | 98.1°F (1956) | 36.0°F (1989) | 0.94 in (1979) |
| September 15 | 97.0°F (1997) | 35.1°F (1947) | 1.36 in (2013) |
| September 16 | 96.1°F (1956) | 34.0°F (1951) | 0.83 in (1999) |
| September 17 | 98.1°F (1992) | 35.1°F (1965) | 0.84 in (1969) |
| September 18 | 98.1°F (1997) | 32.0°F (1971) | 0.85 in (2002) |
| September 19 | 100.0°F (1983) | 32.0°F (1971) | 1.68 in (1946) |
| September 20 | 95.0°F (1956) | 35.1°F (1942) | 1.30 in (1965) |
| September 21 | 96.1°F (1956) | 28.9°F (1983) | 2.50 in (2004) |
| September 22 | 93.9°F (1956) | 36.0°F (1924) | 0.85 in (1941) |
| September 23 | 93.0°F (1947) | 35.1°F (1985) | 1.85 in (1941) |
| September 24 | 96.1°F (1966) | 35.1°F (1994) | 0.80 in (1960) |
| September 25 | 95.0°F (1933) | 30.0°F (2000) | 1.03 in (1950) |
| September 26 | 95.0°F (1915) | 28.9°F (1934) | 0.50 in (1950) |
| September 27 | 96.1°F (2005) | 30.9°F (1908) | 1.95 in (1966) |
| September 28 | 97.0°F (1998) | 28.0°F (1945) | 1.07 in (1976) |
| September 29 | 98.1°F (1994) | 26.1°F (1985) | 1.27 in (1941) |
| September 30 | 93.0°F (1981) | 25.0°F (1985) | 1.65 in (1945) |