August weather in Ennis, MT
The average temperature in Ennis in August is 62.8°F (43.6°F–82.1°F). Average precipitation: 1.02 inches.
August is a summer month in Ennis, and is warmer than the annual average of 42.7°F. Daily temperatures swing about 38.5°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 13h 55m. For travel, August is a comfortable month to visit.
Avg High
82.1°F
Avg Low
43.6°F
Precipitation
1.02 in
Daylight
13h 55m
August records in Ennis
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 95.0°F (2000) | 37.9°F (1968) | 0.54 in (1976) |
| August 2 | 95.0°F (2000) | 35.1°F (1937) | 0.40 in (1922) |
| August 3 | 100.9°F (2024) | 34.0°F (1938) | 1.40 in (1976) |
| August 4 | 96.1°F (1918) | 35.1°F (1980) | 0.72 in (1950) |
| August 5 | 97.0°F (1961) | 35.1°F (1935) | 0.51 in (1997) |
| August 6 | 96.1°F (2012) | 35.1°F (2018) | 0.22 in (1988) |
| August 7 | 96.1°F (1990) | 35.1°F (2017) | 0.70 in (1971) |
| August 8 | 93.9°F (2005) | 30.9°F (1939) | 0.40 in (1926) |
| August 9 | 93.9°F (1965) | 35.1°F (1970) | 0.95 in (1989) |
| August 10 | 95.0°F (1928) | 30.0°F (1939) | 0.65 in (2008) |
| August 11 | 97.0°F (2018) | 35.1°F (1977) | 0.67 in (1993) |
| August 12 | 98.1°F (2018) | 35.1°F (1987) | 2.65 in (1969) |
| August 13 | 96.1°F (1923) | 33.1°F (2006) | 0.84 in (1993) |
| August 14 | 95.0°F (1971) | 30.0°F (2005) | 0.37 in (1968) |
| August 15 | 95.0°F (1920) | 32.0°F (1944) | 1.30 in (1987) |
| August 16 | 93.9°F (1966) | 34.0°F (1935) | 0.63 in (1997) |
| August 17 | 96.1°F (2013) | 30.9°F (1942) | 0.30 in (1990) |
| August 18 | 96.1°F (1919) | 34.0°F (1946) | 0.70 in (1926) |
| August 19 | 91.9°F (1942) | 30.9°F (1939) | 0.80 in (1964) |
| August 20 | 95.0°F (2025) | 30.0°F (1939) | 1.12 in (2021) |
| August 21 | 93.0°F (1919) | 32.0°F (1945) | 0.82 in (1986) |
| August 22 | 96.1°F (2009) | 30.9°F (1966) | 0.85 in (1962) |
| August 23 | 95.0°F (1969) | 30.9°F (1966) | 0.45 in (2019) |
| August 24 | 93.9°F (1919) | 30.0°F (1934) | 0.96 in (1972) |
| August 25 | 93.9°F (1966) | 28.0°F (1992) | 0.59 in (1984) |
| August 26 | 97.0°F (1924) | 28.0°F (1992) | 0.72 in (1991) |
| August 27 | 93.9°F (1922) | 30.0°F (1945) | 0.37 in (1946) |
| August 28 | 91.0°F (1981) | 27.0°F (1960) | 0.70 in (2025) |
| August 29 | 93.0°F (2012) | 30.9°F (1924) | 1.22 in (1932) |
| August 30 | 91.9°F (1954) | 28.9°F (1993) | 0.64 in (1922) |
| August 31 | 95.0°F (2016) | 28.0°F (1932) | 0.94 in (1973) |