September weather in Walnut Creek, NC
The average temperature in Walnut Creek in September is 74.8°F (66.3°F–83.4°F). Average precipitation: 7.03 inches.
September is a fall month in Walnut Creek, and is warmer than the annual average of 63.3°F. Daily temperatures swing about 17.1°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 12h 13m. For travel, September is a wet month.
Avg High
83.4°F
Avg Low
66.3°F
Precipitation
7.03 in
Daylight
12h 13m
September records in Walnut Creek
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 105.1°F (1932) | 54.0°F (1976) | 2.35 in (1964) |
| September 2 | 104.0°F (1932) | 50.0°F (1967) | 2.80 in (1994) |
| September 3 | 100.0°F (1930) | 46.9°F (1909) | 2.99 in (1955) |
| September 4 | 102.0°F (1925) | 50.0°F (1967) | 3.19 in (1999) |
| September 5 | 100.9°F (1932) | 52.0°F (1997) | 5.35 in (1963) |
| September 6 | 98.1°F (1941) | 52.0°F (1924) | 6.35 in (1979) |
| September 7 | 104.0°F (1954) | 46.0°F (1924) | 2.66 in (1918) |
| September 8 | 102.9°F (1925) | 51.1°F (1924) | 2.70 in (1977) |
| September 9 | 102.0°F (1925) | 48.9°F (1966) | 3.15 in (1977) |
| September 10 | 100.0°F (1939) | 45.0°F (1956) | 3.61 in (1967) |
| September 11 | 102.0°F (1925) | 45.0°F (1924) | 2.56 in (1996) |
| September 12 | 100.0°F (1983) | 30.9°F (1900) | 6.07 in (1960) |
| September 13 | 99.0°F (1925) | 46.9°F (1940) | 4.05 in (1964) |
| September 14 | 102.9°F (1925) | 46.9°F (1958) | 3.86 in (1984) |
| September 15 | 99.0°F (1930) | 48.0°F (1967) | 6.60 in (1917) |
| September 16 | 97.0°F (1927) | 50.0°F (1964) | 6.45 in (1999) |
| September 17 | 99.0°F (1931) | 43.0°F (1966) | 3.05 in (1938) |
| September 18 | 100.0°F (1931) | 45.0°F (1943) | 7.02 in (1928) |
| September 19 | 97.0°F (1927) | 45.0°F (1959) | 3.65 in (1955) |
| September 20 | 98.1°F (1978) | 44.1°F (1959) | 2.51 in (1955) |
| September 21 | 98.1°F (1948) | 43.0°F (1962) | 1.77 in (1982) |
| September 22 | 97.0°F (1931) | 41.0°F (1918) | 2.00 in (1983) |
| September 23 | 100.0°F (1931) | 41.0°F (1918) | 1.57 in (1910) |
| September 24 | 97.0°F (1930) | 42.1°F (1981) | 2.52 in (1997) |
| September 25 | 96.1°F (1933) | 42.1°F (1943) | 2.42 in (1980) |
| September 26 | 96.1°F (1930) | 39.9°F (1943) | 2.16 in (1961) |
| September 27 | 95.0°F (1998) | 39.0°F (1943) | 2.85 in (1962) |
| September 28 | 95.0°F (1998) | 39.9°F (1943) | 4.18 in (1999) |
| September 29 | 96.1°F (1941) | 39.9°F (1909) | 2.32 in (1924) |
| September 30 | 93.0°F (1929) | 42.1°F (1909) | 4.58 in (1924) |