July weather in Boulder, MT
The average temperature in Boulder in July is 65.4°F (48.3°F–82.5°F). Average precipitation: 1.38 inches.
July is a summer month in Boulder, and is warmer than the annual average of 42.6°F. Daily temperatures swing about 34.2°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 15h 14m. For travel, July is a comfortable month to visit.
Avg High
82.5°F
Avg Low
48.3°F
Precipitation
1.38 in
Daylight
15h 14m
July records in Boulder
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 95.0°F (2015) | 34.0°F (2020) | 1.65 in (2020) |
| July 2 | 95.0°F (2013) | 30.9°F (1955) | 0.51 in (1948) |
| July 3 | 95.0°F (1986) | 35.1°F (1997) | 0.42 in (2000) |
| July 4 | 93.9°F (1985) | 33.1°F (1994) | 0.74 in (1978) |
| July 5 | 96.1°F (1981) | 32.0°F (1999) | 0.53 in (1956) |
| July 6 | 99.0°F (2007) | 32.0°F (1986) | 0.96 in (1994) |
| July 7 | 99.0°F (2007) | 33.1°F (1971) | 1.10 in (1969) |
| July 8 | 95.0°F (1989) | 30.9°F (1981) | 0.66 in (2007) |
| July 9 | 95.0°F (2017) | 35.1°F (2009) | 0.59 in (2005) |
| July 10 | 96.1°F (1973) | 33.1°F (1993) | 1.85 in (1983) |
| July 11 | 96.1°F (2002) | 34.0°F (1951) | 0.44 in (1948) |
| July 12 | 99.0°F (2002) | 35.1°F (1971) | 0.35 in (1982) |
| July 13 | 100.0°F (2002) | 37.0°F (1965) | 1.08 in (1995) |
| July 14 | 100.9°F (2002) | 34.0°F (1992) | 0.25 in (1962) |
| July 15 | 98.1°F (2002) | 33.1°F (1958) | 1.10 in (2012) |
| July 16 | 96.1°F (1955) | 36.0°F (1953) | 0.80 in (2019) |
| July 17 | 95.0°F (1955) | 34.0°F (1982) | 1.00 in (2001) |
| July 18 | 98.1°F (1951) | 37.0°F (1993) | 1.15 in (1981) |
| July 19 | 98.1°F (1960) | 33.1°F (1972) | 0.31 in (2004) |
| July 20 | 99.0°F (1960) | 28.9°F (1993) | 0.50 in (1972) |
| July 21 | 96.1°F (1960) | 36.0°F (1978) | 0.30 in (1970) |
| July 22 | 95.0°F (2003) | 35.1°F (1972) | 0.33 in (1977) |
| July 23 | 96.1°F (1951) | 37.9°F (1954) | 0.40 in (2008) |
| July 24 | 96.1°F (2007) | 39.0°F (1953) | 0.74 in (2022) |
| July 25 | 96.1°F (2024) | 35.1°F (1948) | 0.55 in (1982) |
| July 26 | 95.0°F (1988) | 35.1°F (2005) | 0.64 in (1993) |
| July 27 | 96.1°F (1988) | 37.0°F (1963) | 0.67 in (1989) |
| July 28 | 96.1°F (2006) | 30.0°F (1949) | 1.00 in (2023) |
| July 29 | 97.0°F (2006) | 37.0°F (1949) | 0.33 in (1955) |
| July 30 | 96.1°F (1966) | 37.0°F (1995) | 0.55 in (1975) |
| July 31 | 97.0°F (1966) | 34.0°F (1995) | 0.70 in (1975) |