August weather in Newcastle, WY
The average temperature in Newcastle in August is 72.1°F (58.5°F–85.6°F). Average precipitation: 1.82 inches.
August is a summer month in Newcastle, and is warmer than the annual average of 47.3°F. Daily temperatures swing about 27.1°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 13h 49m. For travel, August is a comfortable month to visit.
Avg High
85.6°F
Avg Low
58.5°F
Precipitation
1.82 in
Daylight
13h 49m
August records in Newcastle
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 104.0°F (2022) | 43.0°F (1911) | 1.25 in (1972) |
| August 2 | 104.0°F (2022) | 44.1°F (1911) | 1.28 in (2017) |
| August 3 | 102.9°F (2024) | 37.9°F (1978) | 1.13 in (2000) |
| August 4 | 104.0°F (2024) | 39.9°F (1980) | 0.48 in (1922) |
| August 5 | 100.9°F (2001) | 45.0°F (1980) | 1.37 in (1942) |
| August 6 | 102.0°F (1937) | 48.0°F (1928) | 0.90 in (1927) |
| August 7 | 102.9°F (2001) | 39.9°F (1921) | 1.06 in (1918) |
| August 8 | 102.9°F (1995) | 39.0°F (1939) | 1.34 in (2013) |
| August 9 | 102.9°F (2001) | 41.0°F (1910) | 1.65 in (1909) |
| August 10 | 102.0°F (1935) | 39.0°F (1939) | 1.98 in (1974) |
| August 11 | 100.0°F (1936) | 39.9°F (1977) | 3.60 in (2019) |
| August 12 | 100.0°F (2000) | 39.9°F (2004) | 1.27 in (1932) |
| August 13 | 99.0°F (1996) | 37.0°F (1925) | 2.30 in (2005) |
| August 14 | 105.1°F (1937) | 45.0°F (1985) | 1.07 in (1932) |
| August 15 | 100.9°F (1909) | 45.0°F (1942) | 2.01 in (1930) |
| August 16 | 98.1°F (1906) | 41.0°F (1930) | 0.91 in (1981) |
| August 17 | 100.9°F (1907) | 35.1°F (2002) | 0.95 in (1984) |
| August 18 | 99.0°F (2021) | 45.0°F (1968) | 0.95 in (2015) |
| August 19 | 99.0°F (1986) | 39.0°F (1978) | 0.80 in (1972) |
| August 20 | 98.1°F (1910) | 39.0°F (1939) | 1.23 in (1993) |
| August 21 | 99.0°F (1937) | 43.0°F (1966) | 0.50 in (1914) |
| August 22 | 100.9°F (2023) | 35.1°F (1966) | 0.88 in (1927) |
| August 23 | 102.9°F (1937) | 34.0°F (2015) | 0.86 in (1992) |
| August 24 | 99.0°F (1936) | 35.1°F (1910) | 1.10 in (1911) |
| August 25 | 100.0°F (1926) | 26.1°F (1910) | 1.23 in (1938) |
| August 26 | 102.9°F (1926) | 33.1°F (1906) | 0.80 in (1995) |
| August 27 | 100.9°F (1937) | 37.0°F (1976) | 0.83 in (1920) |
| August 28 | 99.0°F (2003) | 36.0°F (1911) | 1.63 in (1933) |
| August 29 | 98.1°F (2012) | 39.9°F (1915) | 2.25 in (1996) |
| August 30 | 100.0°F (2012) | 35.1°F (1910) | 0.97 in (1996) |
| August 31 | 98.1°F (2023) | 37.9°F (1944) | 0.71 in (1943) |