August weather in Sunbury, PA
The average temperature in Sunbury in August is 70.7°F (59.2°F–82.2°F). Average precipitation: 3.93 inches.
August is a summer month in Sunbury, and is warmer than the annual average of 50.3°F. Daily temperatures swing about 23°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 13h 38m. For travel, August is a comfortable month to visit.
Avg High
82.2°F
Avg Low
59.2°F
Precipitation
3.93 in
Daylight
13h 38m
August records in Sunbury
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 93.9°F (1959) | 48.0°F (1964) | 3.00 in (1969) |
| August 2 | 96.1°F (1975) | 48.9°F (2025) | 1.28 in (1933) |
| August 3 | 96.1°F (1975) | 45.0°F (1959) | 1.34 in (1971) |
| August 4 | 98.1°F (1957) | 46.9°F (1959) | 1.25 in (2019) |
| August 5 | 97.0°F (2022) | 46.9°F (1972) | 1.29 in (2020) |
| August 6 | 91.0°F (2022) | 44.1°F (1957) | 1.30 in (2003) |
| August 7 | 95.0°F (1962) | 46.0°F (1957) | 2.60 in (2019) |
| August 8 | 91.9°F (1966) | 44.1°F (1957) | 2.20 in (2023) |
| August 9 | 96.1°F (2022) | 44.1°F (1957) | 1.15 in (2009) |
| August 10 | 91.9°F (2010) | 45.0°F (1964) | 2.32 in (2024) |
| August 11 | 91.0°F (2009) | 46.9°F (1964) | 1.30 in (1973) |
| August 12 | 93.9°F (2021) | 46.0°F (2006) | 2.17 in (1933) |
| August 13 | 95.0°F (2016) | 45.0°F (2006) | 2.42 in (2004) |
| August 14 | 91.9°F (2016) | 45.0°F (1961) | 1.74 in (2018) |
| August 15 | 93.9°F (1959) | 44.1°F (1964) | 1.80 in (1929) |
| August 16 | 96.1°F (1959) | 45.0°F (1963) | 1.40 in (1951) |
| August 17 | 95.0°F (1959) | 46.9°F (1963) | 1.22 in (2003) |
| August 18 | 95.0°F (1959) | 46.0°F (1957) | 0.93 in (1949) |
| August 19 | 91.9°F (2019) | 44.1°F (1963) | 4.75 in (1955) |
| August 20 | 91.0°F (2022) | 43.0°F (1964) | 2.24 in (1950) |
| August 21 | 99.0°F (1962) | 44.1°F (1964) | 1.54 in (2007) |
| August 22 | 98.1°F (1959) | 46.9°F (1969) | 1.38 in (2014) |
| August 23 | 93.9°F (1964) | 46.9°F (1973) | 1.54 in (1933) |
| August 24 | 91.0°F (1964) | 46.9°F (1957) | 3.06 in (1933) |
| August 25 | 90.0°F (2020) | 44.1°F (1963) | 1.50 in (1945) |
| August 26 | 93.0°F (1959) | 43.0°F (1963) | 1.24 in (1961) |
| August 27 | 95.0°F (1959) | 41.0°F (2025) | 1.42 in (1999) |
| August 28 | 95.0°F (1959) | 44.1°F (1968) | 3.12 in (1962) |
| August 29 | 98.1°F (1973) | 44.1°F (1968) | 2.43 in (1949) |
| August 30 | 95.0°F (1973) | 41.0°F (1965) | 1.21 in (2003) |
| August 31 | 93.0°F (1966) | 41.0°F (1965) | 2.10 in (1955) |