September weather in McLean, TX
The average temperature in McLean in September is 72.2°F (59.6°F–84.9°F). Average precipitation: 2.48 inches.
September is a fall month in McLean, and is warmer than the annual average of 59.8°F. Daily temperatures swing about 25.3°F between overnight low and afternoon high. Expect about 3 days with precipitation. Daylight averages about 12h 13m. For travel, September is a comfortable month to visit.
Avg High
84.9°F
Avg Low
59.6°F
Precipitation
2.48 in
Daylight
12h 13m
September records in McLean
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 98.1°F (1982) | 53.1°F (1972) | 0.78 in (1976) |
| September 2 | 100.0°F (1985) | 53.1°F (1972) | 1.53 in (1988) |
| September 3 | 102.0°F (1985) | 44.1°F (1974) | 1.00 in (1949) |
| September 4 | 104.0°F (1970) | 48.9°F (1974) | 5.10 in (1981) |
| September 5 | 102.0°F (1970) | 50.0°F (1974) | 0.31 in (1950) |
| September 6 | 105.1°F (1983) | 54.0°F (2008) | 1.30 in (1987) |
| September 7 | 100.0°F (1985) | 48.0°F (1986) | 2.00 in (1973) |
| September 8 | 100.0°F (1985) | 48.9°F (1986) | 2.20 in (2007) |
| September 9 | 98.1°F (1970) | 48.0°F (1962) | 1.35 in (1997) |
| September 10 | 102.0°F (2000) | 42.1°F (1907) | 0.38 in (1950) |
| September 11 | 102.0°F (2000) | 48.0°F (2007) | 5.37 in (2003) |
| September 12 | 102.0°F (2000) | 46.0°F (1975) | 0.80 in (1989) |
| September 13 | 100.9°F (1962) | 42.1°F (1989) | 0.65 in (1989) |
| September 14 | 102.9°F (1965) | 39.9°F (1989) | 1.50 in (1985) |
| September 15 | 98.1°F (1965) | 44.1°F (1975) | 2.02 in (1976) |
| September 16 | 100.0°F (1965) | 45.0°F (1973) | 1.68 in (1973) |
| September 17 | 99.0°F (1978) | 37.0°F (1971) | 0.61 in (1962) |
| September 18 | 98.1°F (2005) | 42.1°F (1971) | 3.15 in (1996) |
| September 19 | 98.1°F (2005) | 43.0°F (1991) | 1.65 in (1996) |
| September 20 | 96.1°F (1980) | 42.1°F (1991) | 2.65 in (1978) |
| September 21 | 99.0°F (1980) | 36.0°F (1983) | 3.80 in (1968) |
| September 22 | 97.0°F (1980) | 37.9°F (1995) | 2.20 in (1997) |
| September 23 | 96.1°F (1984) | 39.0°F (1989) | 0.70 in (1950) |
| September 24 | 97.0°F (1979) | 37.0°F (1989) | 1.32 in (1971) |
| September 25 | 96.1°F (1979) | 33.1°F (2000) | 1.21 in (1950) |
| September 26 | 97.0°F (1973) | 39.9°F (2000) | 1.73 in (1978) |
| September 27 | 95.0°F (1979) | 37.0°F (1908) | 0.60 in (1980) |
| September 28 | 95.0°F (1994) | 39.0°F (1908) | 0.36 in (1976) |
| September 29 | 93.9°F (1994) | 35.1°F (1984) | 1.70 in (1990) |
| September 30 | 96.1°F (1977) | 30.0°F (1985) | 0.45 in (1986) |