September weather in Delaware, OK
The average temperature in Delaware in September is °F (°F–°F). Average precipitation: 3.67 inches.
September is a fall month in Delaware, and is cooler than the annual average of 0°F. Expect about 7 days with precipitation. Daylight averages about 12h 13m.
Avg High
°F
Avg Low
°F
Precipitation
3.67 in
Daylight
12h 13m
September records in Delaware
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | — | — | 2.32 in (2003) |
| September 2 | — | — | 3.02 in (1973) |
| September 3 | — | — | 4.10 in (1962) |
| September 4 | — | — | 4.96 in (1961) |
| September 5 | — | — | 0.82 in (1965) |
| September 6 | — | — | 0.35 in (2008) |
| September 7 | — | — | 0.82 in (1995) |
| September 8 | — | — | 3.58 in (2007) |
| September 9 | — | — | 1.89 in (2009) |
| September 10 | — | — | 0.85 in (1980) |
| September 11 | — | — | 0.73 in (1999) |
| September 12 | — | — | 2.40 in (1977) |
| September 13 | — | — | 3.69 in (1961) |
| September 14 | — | — | 3.10 in (1998) |
| September 15 | — | — | 3.03 in (1962) |
| September 16 | — | — | 3.30 in (1996) |
| September 17 | — | — | 0.73 in (1958) |
| September 18 | — | — | 0.80 in (2001) |
| September 19 | — | — | 2.50 in (2002) |
| September 20 | — | — | 2.75 in (1965) |
| September 21 | — | — | 3.03 in (1965) |
| September 22 | — | — | 1.68 in (2009) |
| September 23 | — | — | 1.23 in (1997) |
| September 24 | — | — | 2.08 in (1959) |
| September 25 | — | — | 3.16 in (1993) |
| September 26 | — | — | 2.59 in (1996) |
| September 27 | — | — | 2.38 in (1973) |
| September 28 | — | — | 1.50 in (1973) |
| September 29 | — | — | 2.45 in (1977) |
| September 30 | — | — | 1.20 in (1959) |