September weather in Vernal, UT
The average temperature in Vernal in September is 61.2°F (46.1°F–76.3°F). Average precipitation: 1.22 inches.
September is a fall month in Vernal, and is warmer than the annual average of 46.9°F. Daily temperatures swing about 30.2°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 12h 15m. For travel, September is a comfortable month to visit.
Avg High
76.3°F
Avg Low
46.1°F
Precipitation
1.22 in
Daylight
12h 15m
September records in Vernal
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 97.0°F (1954) | 33.1°F (1920) | 1.04 in (1898) |
| September 2 | 93.9°F (1955) | 32.0°F (1953) | 1.30 in (1938) |
| September 3 | 96.1°F (2019) | 30.9°F (1953) | 0.75 in (1926) |
| September 4 | 95.0°F (2022) | 30.0°F (1953) | 0.76 in (2004) |
| September 5 | 96.1°F (2022) | 30.0°F (1953) | 0.38 in (1990) |
| September 6 | 95.0°F (2020) | 27.0°F (1953) | 0.74 in (1981) |
| September 7 | 97.0°F (2022) | 32.0°F (1911) | 0.75 in (1939) |
| September 8 | 95.0°F (1974) | 27.0°F (1941) | 0.65 in (1938) |
| September 9 | 93.9°F (1974) | 27.0°F (1962) | 0.67 in (1961) |
| September 10 | 91.9°F (1974) | 27.0°F (1962) | 0.87 in (2005) |
| September 11 | 91.0°F (2021) | 19.9°F (1916) | 1.02 in (1897) |
| September 12 | 91.9°F (1990) | 26.1°F (1916) | 0.59 in (2002) |
| September 13 | 91.9°F (1990) | 28.0°F (1916) | 0.74 in (1941) |
| September 14 | 93.0°F (2000) | 27.0°F (1993) | 0.60 in (1939) |
| September 15 | 90.0°F (2000) | 26.1°F (1912) | 1.25 in (2013) |
| September 16 | 88.0°F (1995) | 24.1°F (1912) | 1.10 in (2006) |
| September 17 | 90.0°F (2000) | 26.1°F (1965) | 1.12 in (1965) |
| September 18 | 88.0°F (1979) | 19.0°F (1965) | 0.80 in (1925) |
| September 19 | 89.1°F (1920) | 23.0°F (1945) | 1.19 in (1997) |
| September 20 | 90.0°F (1935) | 24.1°F (1945) | 0.42 in (2004) |
| September 21 | 90.0°F (1937) | 23.0°F (1912) | 0.71 in (1902) |
| September 22 | 88.0°F (1937) | 24.1°F (1895) | 1.20 in (1941) |
| September 23 | 87.1°F (1949) | 27.0°F (1924) | 2.19 in (2016) |
| September 24 | 87.1°F (1933) | 23.0°F (1945) | 1.07 in (1986) |
| September 25 | 87.1°F (2001) | 23.0°F (1970) | 1.05 in (1900) |
| September 26 | 86.0°F (2001) | 21.9°F (1934) | 1.05 in (2012) |
| September 27 | 87.1°F (2024) | 19.9°F (1934) | 0.71 in (1982) |
| September 28 | 87.1°F (2024) | 21.0°F (1916) | 1.22 in (2014) |
| September 29 | 84.9°F (1989) | 21.9°F (1985) | 0.70 in (1926) |
| September 30 | 87.1°F (2001) | 19.9°F (1945) | 1.32 in (1905) |