September weather in Mountain Home, AR
The average temperature in Mountain Home in September is 70.9°F (59.7°F–82.0°F). Average precipitation: 3.66 inches.
September is a fall month in Mountain Home, and is warmer than the annual average of 58.3°F. Daily temperatures swing about 22.3°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 13m. For travel, September is a comfortable month to visit.
Avg High
82.0°F
Avg Low
59.7°F
Precipitation
3.66 in
Daylight
12h 13m
September records in Mountain Home
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 102.9°F (2000) | 45.0°F (1968) | 2.10 in (1957) |
| September 2 | 102.0°F (2000) | 42.1°F (1955) | 1.85 in (2010) |
| September 3 | 106.0°F (1939) | 45.0°F (1952) | 2.56 in (2022) |
| September 4 | 105.1°F (1925) | 46.0°F (1924) | 8.95 in (1985) |
| September 5 | 105.1°F (1925) | 48.0°F (1952) | 1.17 in (2009) |
| September 6 | 107.1°F (1925) | 46.0°F (1928) | 1.25 in (2023) |
| September 7 | 107.1°F (1925) | 39.9°F (1943) | 1.50 in (1963) |
| September 8 | 107.1°F (1939) | 44.1°F (1943) | 2.77 in (1990) |
| September 9 | 106.0°F (1939) | 41.0°F (1943) | 3.55 in (1905) |
| September 10 | 102.9°F (1936) | 42.1°F (1902) | 2.07 in (2010) |
| September 11 | 104.0°F (1936) | 37.0°F (1940) | 2.58 in (1975) |
| September 12 | 102.0°F (1936) | 35.1°F (1940) | 1.35 in (1945) |
| September 13 | 105.1°F (1939) | 37.0°F (1902) | 3.00 in (1921) |
| September 14 | 104.0°F (1939) | 36.0°F (1902) | 2.61 in (1977) |
| September 15 | 102.9°F (1939) | 39.9°F (1902) | 2.80 in (1986) |
| September 16 | 100.0°F (1931) | 43.0°F (1961) | 3.33 in (1996) |
| September 17 | 102.0°F (1931) | 39.9°F (1918) | 2.50 in (1936) |
| September 18 | 100.9°F (1931) | 39.0°F (1943) | 1.49 in (1968) |
| September 19 | 102.0°F (1954) | 39.0°F (1938) | 1.96 in (1975) |
| September 20 | 100.0°F (1954) | 39.0°F (1918) | 1.98 in (1993) |
| September 21 | 96.1°F (1931) | 35.1°F (1918) | 1.35 in (1924) |
| September 22 | 97.0°F (1921) | 35.1°F (1983) | 2.49 in (1965) |
| September 23 | 97.0°F (1935) | 37.0°F (1995) | 2.11 in (2006) |
| September 24 | 99.0°F (1939) | 35.1°F (1928) | 4.00 in (1941) |
| September 25 | 100.0°F (1939) | 37.0°F (1950) | 3.40 in (1925) |
| September 26 | 97.0°F (1938) | 37.0°F (1975) | 2.00 in (1925) |
| September 27 | 97.0°F (1938) | 32.0°F (1942) | 3.65 in (1996) |
| September 28 | 100.9°F (1953) | 35.1°F (1942) | 4.48 in (1927) |
| September 29 | 102.9°F (1953) | 32.0°F (1967) | 1.96 in (1977) |
| September 30 | 97.0°F (1938) | 32.0°F (1924) | 1.12 in (1955) |