September weather in Blackwell, OK
The average temperature in Blackwell in September is 72.2°F (59.6°F–84.8°F). Average precipitation: 3.17 inches.
September is a fall month in Blackwell, and is warmer than the annual average of 58.4°F. Daily temperatures swing about 25.2°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 12h 13m. For travel, September is a comfortable month to visit.
Avg High
84.8°F
Avg Low
59.6°F
Precipitation
3.17 in
Daylight
12h 13m
September records in Blackwell
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 107.1°F (1985) | 48.9°F (1956) | 1.83 in (1979) |
| September 2 | 107.1°F (2000) | 52.0°F (1955) | 1.81 in (1974) |
| September 3 | 108.0°F (2000) | 46.0°F (1974) | 0.75 in (1993) |
| September 4 | 108.0°F (2012) | 46.0°F (1974) | 1.75 in (1967) |
| September 5 | 106.0°F (1998) | 50.0°F (1974) | 1.47 in (2018) |
| September 6 | 105.1°F (1998) | 50.0°F (2011) | 1.26 in (1967) |
| September 7 | 104.0°F (1998) | 48.9°F (2011) | 1.40 in (1983) |
| September 8 | 105.1°F (1998) | 46.9°F (1957) | 2.38 in (1994) |
| September 9 | 100.9°F (1955) | 50.0°F (1962) | 2.15 in (2015) |
| September 10 | 105.1°F (1984) | 43.0°F (1962) | 1.96 in (2006) |
| September 11 | 105.1°F (1956) | 43.0°F (1959) | 3.54 in (1964) |
| September 12 | 105.1°F (2000) | 46.0°F (1959) | 3.38 in (2008) |
| September 13 | 102.9°F (1965) | 43.0°F (2014) | 6.11 in (1961) |
| September 14 | 106.0°F (1956) | 44.1°F (1961) | 2.35 in (2002) |
| September 15 | 104.0°F (1956) | 41.0°F (1993) | 0.90 in (1957) |
| September 16 | 105.1°F (1956) | 46.0°F (1993) | 5.34 in (1969) |
| September 17 | 97.0°F (1978) | 43.0°F (1981) | 1.30 in (1959) |
| September 18 | 100.9°F (1956) | 39.0°F (1973) | 2.09 in (1971) |
| September 19 | 99.0°F (1980) | 37.0°F (1991) | 3.22 in (1988) |
| September 20 | 100.0°F (1955) | 43.0°F (1971) | 1.17 in (1990) |
| September 21 | 102.0°F (1956) | 37.9°F (1983) | 1.50 in (1957) |
| September 22 | 99.0°F (1956) | 37.0°F (1995) | 2.58 in (1998) |
| September 23 | 97.0°F (1986) | 41.0°F (1991) | 4.35 in (1997) |
| September 24 | 97.0°F (1984) | 35.1°F (1989) | 1.63 in (1959) |
| September 25 | 98.1°F (1967) | 39.0°F (1991) | 2.46 in (1971) |
| September 26 | 97.0°F (1977) | 36.0°F (2000) | 5.48 in (1996) |
| September 27 | 97.0°F (1956) | 36.0°F (2000) | 3.33 in (1973) |
| September 28 | 98.1°F (2009) | 37.0°F (1967) | 2.48 in (1987) |
| September 29 | 98.1°F (1994) | 41.0°F (1985) | 2.13 in (1986) |
| September 30 | 96.1°F (1977) | 28.9°F (1984) | 5.21 in (1986) |