August weather in Monongahela, PA
The average temperature in Monongahela in August is 73.1°F (62.5°F–83.7°F). Average precipitation: 3.50 inches.
August is a summer month in Monongahela, and is warmer than the annual average of 52.9°F. Daily temperatures swing about 21.2°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 13h 36m. For travel, August is a comfortable month to visit.
Avg High
83.7°F
Avg Low
62.5°F
Precipitation
3.50 in
Daylight
13h 36m
August records in Monongahela
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 90.0°F (2011) | 57.9°F (2023) | 2.05 in (1947) |
| August 2 | 93.9°F (2024) | 57.9°F (2023) | 2.88 in (1935) |
| August 3 | 91.9°F (2012) | 55.0°F (2025) | 1.59 in (1935) |
| August 4 | 91.9°F (2022) | 55.0°F (2025) | 1.70 in (2000) |
| August 5 | 91.0°F (2022) | 55.0°F (2013) | 2.08 in (1956) |
| August 6 | 93.0°F (2024) | 55.0°F (2013) | 2.35 in (1956) |
| August 7 | 93.0°F (2018) | 59.0°F (2014) | 3.67 in (2000) |
| August 8 | 89.1°F (2020) | 59.0°F (2014) | 0.90 in (2022) |
| August 9 | 91.0°F (2021) | 57.0°F (2017) | 1.04 in (1938) |
| August 10 | 90.0°F (2016) | 57.0°F (2017) | 2.85 in (2007) |
| August 11 | 91.0°F (2020) | 55.0°F (2024) | 1.05 in (1980) |
| August 12 | 93.0°F (2025) | 55.0°F (2024) | 1.97 in (2021) |
| August 13 | 93.9°F (2021) | 53.1°F (2022) | 1.34 in (2021) |
| August 14 | 93.9°F (2021) | 54.0°F (2013) | 2.00 in (1975) |
| August 15 | 91.9°F (2020) | 48.9°F (2013) | 2.05 in (2023) |
| August 16 | 91.0°F (2017) | 48.9°F (2013) | 1.62 in (1935) |
| August 17 | 95.0°F (2025) | 54.0°F (2014) | 1.17 in (1934) |
| August 18 | 96.1°F (2017) | 57.9°F (2013) | 2.14 in (1949) |
| August 19 | 91.9°F (2017) | 55.0°F (2023) | 1.34 in (1931) |
| August 20 | 91.9°F (2025) | 55.0°F (2023) | 3.43 in (1969) |
| August 21 | 89.1°F (2019) | 55.0°F (2023) | 2.05 in (1994) |
| August 22 | 91.0°F (2023) | 48.9°F (2024) | 1.52 in (1947) |
| August 23 | 91.9°F (2020) | 48.9°F (2024) | 1.48 in (1970) |
| August 24 | 96.1°F (2021) | 52.0°F (2017) | 1.52 in (2002) |
| August 25 | 91.9°F (2021) | 54.0°F (2019) | 1.08 in (1999) |
| August 26 | 93.9°F (2020) | 54.0°F (2019) | 1.09 in (1985) |
| August 27 | 93.0°F (2024) | 51.1°F (2025) | 1.73 in (1976) |
| August 28 | 95.0°F (2024) | 51.1°F (2025) | 1.77 in (1967) |
| August 29 | 96.1°F (2024) | 51.1°F (2025) | 2.25 in (1936) |
| August 30 | 95.0°F (2024) | 50.0°F (2025) | 1.35 in (1974) |
| August 31 | 95.0°F (2024) | 50.0°F (2025) | 1.93 in (1975) |