August weather in Vernal, UT
The average temperature in Vernal in August is 70.5°F (55.1°F–86.0°F). Average precipitation: 0.81 inches.
August is a summer month in Vernal, and is warmer than the annual average of 46.9°F. Daily temperatures swing about 30.9°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 13h 37m. For travel, August is a comfortable month to visit.
Avg High
86.0°F
Avg Low
55.1°F
Precipitation
0.81 in
Daylight
13h 37m
August records in Vernal
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 100.0°F (2000) | 39.0°F (1928) | 1.20 in (1899) |
| August 2 | 99.0°F (2000) | 36.0°F (1950) | 0.64 in (1972) |
| August 3 | 98.1°F (1902) | 37.0°F (1928) | 0.37 in (1927) |
| August 4 | 100.0°F (1979) | 37.9°F (1928) | 1.10 in (1920) |
| August 5 | 100.0°F (1969) | 37.0°F (1950) | 0.33 in (1997) |
| August 6 | 98.1°F (1969) | 37.0°F (1928) | 0.33 in (1927) |
| August 7 | 102.0°F (2000) | 36.0°F (1953) | 0.38 in (1945) |
| August 8 | 98.1°F (1969) | 39.9°F (1928) | 1.56 in (2008) |
| August 9 | 98.1°F (2000) | 41.0°F (1926) | 0.63 in (1994) |
| August 10 | 98.1°F (1969) | 39.9°F (1948) | 0.95 in (1941) |
| August 11 | 99.0°F (1971) | 34.0°F (1953) | 0.86 in (1997) |
| August 12 | 98.1°F (1958) | 37.0°F (1953) | 0.47 in (1995) |
| August 13 | 99.0°F (1940) | 34.0°F (1979) | 0.73 in (1959) |
| August 14 | 98.1°F (1973) | 37.9°F (1950) | 0.51 in (1978) |
| August 15 | 98.1°F (1939) | 37.9°F (1949) | 0.60 in (1935) |
| August 16 | 97.0°F (1973) | 37.9°F (1938) | 0.29 in (1899) |
| August 17 | 98.1°F (1994) | 36.0°F (1950) | 0.48 in (1909) |
| August 18 | 98.1°F (1906) | 33.1°F (1920) | 0.28 in (1989) |
| August 19 | 98.1°F (2020) | 34.0°F (1916) | 0.63 in (2021) |
| August 20 | 95.0°F (1973) | 35.1°F (1924) | 0.68 in (1951) |
| August 21 | 97.0°F (2025) | 33.1°F (1933) | 0.56 in (1999) |
| August 22 | 97.0°F (2025) | 35.1°F (1933) | 1.15 in (1947) |
| August 23 | 93.9°F (1910) | 35.1°F (1968) | 1.02 in (2014) |
| August 24 | 93.9°F (1939) | 36.0°F (1968) | 0.34 in (1987) |
| August 25 | 97.0°F (1969) | 34.0°F (1975) | 0.98 in (1955) |
| August 26 | 97.0°F (1969) | 35.1°F (1954) | 0.73 in (1925) |
| August 27 | 98.1°F (1918) | 32.0°F (1992) | 0.80 in (1977) |
| August 28 | 95.0°F (2001) | 36.0°F (1931) | 0.82 in (2014) |
| August 29 | 95.0°F (2002) | 33.1°F (1920) | 0.85 in (1986) |
| August 30 | 97.0°F (1915) | 32.0°F (1964) | 0.52 in (1937) |
| August 31 | 97.0°F (1954) | 32.0°F (1932) | 1.00 in (1909) |