July weather in Charlestown, MD
The average temperature in Charlestown in July is 78.0°F (68.5°F–87.5°F). Average precipitation: 4.69 inches.
July is a summer month in Charlestown, and is warmer than the annual average of 55.4°F. Daily temperatures swing about 19°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 14h 32m. For travel, July is a comfortable month to visit.
Avg High
87.5°F
Avg Low
68.5°F
Precipitation
4.69 in
Daylight
14h 32m
July records in Charlestown
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 97.0°F (1968) | 36.0°F (1990) | 3.19 in (1984) |
| July 2 | 100.0°F (1966) | 48.0°F (1952) | 1.30 in (2022) |
| July 3 | 102.9°F (1966) | 44.1°F (1989) | 3.40 in (1978) |
| July 4 | 102.9°F (1966) | 51.1°F (1962) | 3.85 in (1951) |
| July 5 | 105.1°F (1990) | 52.0°F (1963) | 3.03 in (1989) |
| July 6 | 104.0°F (1986) | 51.1°F (1979) | 1.50 in (1977) |
| July 7 | 104.0°F (2010) | 48.0°F (1980) | 1.37 in (2020) |
| July 8 | 102.0°F (1993) | 52.0°F (1960) | 5.55 in (1952) |
| July 9 | 102.9°F (1993) | 54.0°F (1984) | 2.96 in (1939) |
| July 10 | 102.9°F (1936) | 52.0°F (1963) | 2.99 in (1967) |
| July 11 | 102.0°F (1993) | 53.1°F (1953) | 2.20 in (2010) |
| July 12 | 98.1°F (1994) | 50.0°F (1978) | 3.27 in (1949) |
| July 13 | 106.0°F (1990) | 50.0°F (1978) | 3.51 in (2004) |
| July 14 | 102.0°F (1995) | 52.0°F (1940) | 2.66 in (1975) |
| July 15 | 105.1°F (1995) | 51.1°F (1940) | 3.35 in (2000) |
| July 16 | 102.9°F (1997) | 53.1°F (1991) | 1.40 in (1989) |
| July 17 | 102.9°F (1997) | 51.1°F (1939) | 1.00 in (2024) |
| July 18 | 102.9°F (1997) | 53.1°F (1976) | 1.62 in (2018) |
| July 19 | 102.9°F (1997) | 55.0°F (1976) | 1.29 in (1938) |
| July 20 | 100.0°F (1991) | 57.0°F (1965) | 2.76 in (1959) |
| July 21 | 105.1°F (1991) | 52.0°F (1965) | 3.35 in (1938) |
| July 22 | 100.0°F (1955) | 50.0°F (1990) | 1.60 in (1980) |
| July 23 | 105.1°F (1991) | 51.1°F (1977) | 2.10 in (2013) |
| July 24 | 100.9°F (2011) | 52.0°F (1981) | 3.48 in (2017) |
| July 25 | 100.0°F (2010) | 55.0°F (1947) | 0.87 in (1977) |
| July 26 | 99.0°F (1940) | 50.0°F (1976) | 3.06 in (2021) |
| July 27 | 100.0°F (2005) | 50.0°F (1977) | 1.98 in (1958) |
| July 28 | 99.0°F (1954) | 48.9°F (1977) | 2.21 in (2004) |
| July 29 | 98.1°F (1997) | 55.0°F (1937) | 1.50 in (2000) |
| July 30 | 100.0°F (2002) | 50.0°F (1981) | 2.36 in (1971) |
| July 31 | 102.0°F (1954) | 51.1°F (1981) | 1.76 in (2015) |